Real property sample / address placeholder

Garage conversion review.

Based on a real-property public-record review. The garage-to-ADU idea was supplied for this study; this is not an issued client report or an approved design. Address, owner details, parcel and record identifiers are withheld in this public extract. Record facts and unresolved findings are retained.

Revised October 23, 2026. Property-record cutoff: October 21, 2026. Rule references checked October 23, 2026. 30-page public sample. Report SBW-DFR-GC01-SAMPLE, version 3.1.

Verify the garage before a final layout.

Three scanned documents and six original pages reviewed; 31 index entries screened.

Download sample PDF

Design Feasibility Review / public sample

Property + zoning summary.

Garage conversion to an ADU. Property records were reviewed October 21; the additional yard-rule references were checked October 23, 2026.

Property + zoning summary.
Property identification	Evidence and status
Address	[Property address], Los Angeles, CA
Address status	Address withheld for this public sample; actual record findings retained.
Jurisdiction	City of Los Angeles, supported by the saved city-boundary and reference-parcel review. [S-05]
Mapped zoning	R2-1: R2 two-family zone; height district 1. Generalized city GIS context, not a zoning determination or complete overlay review. [S-05, S-09]
Recorded land	5,120 sq ft total; 5,100 sq ft usable. Recorded dimensions 40 x 128 ft. Preserve this difference pending parcel/boundary verification. [S-01]
Recorded residence	675 sq ft; one dwelling, two bedrooms, one bathroom; original year 1924. [S-01, S-02]
Garage / proposed use	Tentative historic 12 x 18 ft = 216 gross sq ft. Test a garage-to-ADU conversion; present dimensions and usable interior area are unverified. [S-03]

Review conclusion

Verify the garage before a final layout.

The garage record linkage, current shell, dimensions, utilities and agency status remain conditional. This real-property sample is not an issued client report, permit approval or agreement to begin work.

Property metrics / record versus measurement

Areas + lot coverage.

Square footage, building footprint and lot coverage are separate quantities. This worksheet keeps the denominator and uncertainty visible.

Areas + lot coverage.
Item	Area / calculation	Basis and limit
Lot area used below	5,120 sq ft	Assessor total land figure, not a boundary survey. Usable land is separately listed as 5,100 sq ft. [S-01]
Residence	675 sq ft	Assessment living area; historical dwelling application is 25 x 27 = 675 gross sq ft. Present footprint is unmeasured. [S-01, S-02]
Garage	216 gross sq ft, tentative	12 x 18 historic reading; legal-lot linkage and present size require confirmation. Not ADU livable area. [S-03]
ADU livable floor area	Not established	Measure clear interior after walls, insulation and required facilities. Do not label 216 gross sq ft as usable ADU area.
Patio / other accessory buildings	Not established	No complete current footprint inventory or measured site plan was supplied.
Historic footprint illustration	675 + 216 = 891 sq ft	Conditional record arithmetic for these two structures only; not a measured total for all improvements.

Illustrative calculation / not verified current coverage

891 / 5,120 x 100 = 17.4%

This assumes both historic rectangles describe the present structures and uses 5,120 sq ft as the lot denominator. It omits any unverified patios, additions, overhangs or other counted structures. It cannot establish current compliance.

Current coverage: Not established; the complete present footprint inventory is missing.
Proposed coverage: Not established. No footprint increase only if the work remains within the existing envelope.
Allowable maximum: Not established. Verify counted structures, zoning/overlays and the applicable ADU route before comparing a measured proposal.

Lot coverage is not floor-area ratio. R2 imports specified R1 yard rules; that does not import an R1 floor-area or variation-zone coverage limit. State ADU protections also affect which coverage limits may be applied. [S-06, S-09]

Conditional development-standard screen

Setbacks by structure.

For the mapped R2-1 context, not a parcel-specific approval. All provided/actual distances are unmeasured. Residence and main dwelling describe the same building category here.

Setbacks by structure.
Structure / route	Front	Interior side	Rear	Qualification / authority
Main residence / dwelling	20 ft base*	4 ft base*	15 ft	R2 imports R1 yard rules. The recorded 40-ft width and 128-ft depth yield these starting figures for the stated assumptions. Prevailing frontage and height can change them. [S-09, S-10]
Garage converted within existing structure to ADU	No added setback*	No added setback*	No added setback*	Existing-space or qualifying same-location/same-dimensions route. Confirm eligibility, access, fire/life safety and easements; this is not a measured zero-foot clearance. [S-06, S-07]
New attached / detached ADU	ADU route*	4 ft maximum*	4 ft maximum*	Side/rear maximum required setback under the cited state route; not the actual proposed distance. Front-yard rules and state exceptions require the route to be identified. [S-06]
Detached garage / nonhabitable, one story	Accessory siting*	0 ft possible*	0 ft possible*	Eligible rear-yard/side-yard placement only; alley, building separation, fire construction and other conditions apply. Not the rule for conversion to a dwelling. [S-11]
Other accessory building / nonhabitable	Accessory siting*	Varies*	Varies*	Classify use and height. Recreation rooms and two-story accessory buildings have additional yard rules; do not apply a generic garage allowance to every accessory structure. [S-11]
Patio / patio cover	Classify first	0 ft possible*	0 ft possible*	The cited interpretation applies to a detached cover with an entire wall open and specified rear-lot placement. Attached covers, enclosed rooms and raised decks need separate review. [S-12]

*Main-building bases: 20% x 128 ft = 25.6 ft, capped at 20 ft before the prevailing-frontage rule; side = 10% x 40 ft = 4 ft under the narrow-lot rule for a main building up to two stories, with height/plane-break rules also to check. Confirm legal lot dimensions and current frontage. [S-09, S-10]

*Accessory/patio conditions: Examine location within the rear 30 ft or other eligible code area; main-building separation, alley, fire protection and use/height rules can control. A possible zoning allowance is not confirmation of a safe or permitted existing setback. [S-11, S-12]

Evidence packet / what accompanies delivery

Source PDFs + references.

Three property-record PDFs and the saved conversion bulletin were reopened for this revision. Historic documents are evidence of what they say, not proof of current conditions or final occupancy approval.

Source PDFs + references.
Source	Document	Pages	Delivery
S-02	1924 dwelling application	2	Public copy: pp 13-14; embedded PDF
S-03	1924 private-garage application	2	Public copy: pp 15-16; embedded PDF
S-04	2000 window-work application	2	Public copy: pp 17-18; embedded PDF
S-07	LADBS garage-conversion bulletin	12	Public copy: pp 19-30; embedded PDF

All 18 source pages follow the report; the four rebuilt PDFs are also embedded as attachments. Property, people, record numbers, location references and signatures are redacted from permit copies. Original files and exact record links remain private. These are labeled public reference copies, not certified records.

Additional rule references / checked October 23, 2026

The HCD handbook and city manual are linked references, not additional saved property documents in this packet. The manual is commentary; confirm current code, overlays and applicable ADU provisions before relying on a standard.

Record cutoff: October 21, 2026. Rules supplement: October 23, 2026. The original findings follow. No final inspection, occupancy certificate, approved plan set, survey, current measured site base or complete present-building inventory was obtained.

01 / The question

Can the garage become a small home?

Review one existing garage for conversion to an ADU. First establish which structure the record describes and whether its present condition supports reuse.

Request supplied: Explore a garage conversion to an ADU. Bedroom count, occupancy preferences, budget, existing photos and a measured garage plan were not supplied. Confirm the intended occupancy and room needs before a layout study.
Recorded property: Assessor: one dwelling, two bedrooms and one bathroom; 675 square feet of main living area; original year 1924. The assessor figure is not a measurement of the garage. [S-01]
Land figures differ: The same assessor record lists 5,120 square feet total land and 5,100 usable square feet, with recorded dimensions of 40 by 128 feet. Preserve both figures; neither establishes legal boundaries or buildable area. [S-01]
Decision supported: Decide what information to obtain before paying for a final conversion layout. This review does not establish that the existing garage can be retained, habitable area, construction cost or permit approval.

The client report identifies its property and requester. This public extract withholds identifying fields; it does not replace them with invented property facts.

02 / What the records show

A garage record, with limits.

Three original scanned documents were opened, saved and reviewed on all six pages. Record descriptions were checked against the scanned pages.

1924 / Dwelling: A bungalow application describes a 25-by-27-foot building: 675 gross square feet. That arithmetic agrees with the assessor main-building figure. It does not verify present dimensions. [S-02, p1]
1924 / Private garage: A separate application identifies a private garage at the matching street address and tract. Its size appears to read 12 by 18 feet. The legal-lot entry is partly obscured and the index differs from the current assessor lot; clarify the linkage before relying on it. [S-03, p1]
2000 / Window work: A later application matches the current parcel and legal lot and lists two buildings, a dwelling and garage. Its described work is window replacement and patching, not an ADU conversion. [S-04, p1]
What is not established: No garage final-inspection record or certificate of occupancy was obtained. A permit/application title containing those words is not evidence of a completed occupancy approval. Historic permit issuance is not proof of current conditions.

The window-work scan says Ready to Issue while its index says Issued. The difference is recorded, not silently reconciled. [S-04]

03 / The garage question

About 216 square feet on paper.

The tentative 12-by-18-foot reading suggests a compact starting envelope. It is a transcription of an old application, not a measured plan or usable floor-area calculation.

Record arithmetic only: a tentative 12-by-18-foot reading equals 216 gross square feet. Usable interior area and present condition are unmeasured. This is not a room layout or verified site plan.

What it suggests: A compact studio is the first layout question to test if measurements support this envelope. A separate bedroom, full equipment list or expanded footprint is not established by this review.
What it does not prove: The structure still exists in this size; walls, slab or roof can remain; the interior meets required clearances; or the recorded garage and present garage are the same structure.
Height is unresolved: The application appears to note a 9-foot-6-inch highest point. That is not a clear interior ceiling measurement. Floor, roof and insulation changes can alter usable height. [S-03, p1]

The schematic contains no room layout, verified site position, property lines or proposed work. Gross footprint and habitable floor area are different quantities.

04 / The conversion route

A route to investigate, not an approval.

The city records and city-boundary mapping support City of Los Angeles review. The generalized zoning layer returns R2-1 for the reference parcel. This is mapped context, not a zoning determination or a complete overlay review. [S-05]

Existing-space route: State guidance recognizes conversion of an existing accessory structure to an ADU. Exterior access and fire-and-safety requirements still matter. Confirm the actual structure and proposed work qualify. [S-06, pp16-19, 40]
Parking and setbacks: State guidance limits replacement-parking requirements when a garage is converted. Existing-space setback relief is not permission to ignore fire safety or expand without review. No exact setback is certified here. [S-06, pp33-34, 37]
Current building review: LADBS bulletin P/BC 2026-150, revised August 13, 2026, addresses proposed conversions and other paths. For this proposed conversion, begin with its current-code route, not an assumed legalization of an existing pre-2020 ADU. [S-07, pp1-2]
Why size needs a test: The city bulletin calls for habitable-room area, width and ceiling checks, cooking facilities and a separate bathroom. A 216-square-foot gross rectangle alone proves none of them. [S-07, pp5-6]

No evidence was supplied that an ADU already exists. A historic garage permit does not establish eligibility for an unpermitted-ADU legalization route.

05 / Conditions to verify

The shell and services control the answer.

These are targeted checks prompted by this case, not defects observed on site.

Existing shell / unknown: Measure inside and outside, ceiling clearances and openings; photograph roof, walls, slab and visible distress. Confirm the garage record describes the current structure. A licensed professional may be needed to assess structural reuse.
Fire and openings / unknown: Locate the garage against boundaries and the house. Review separation, wall construction, exterior access and possible escape openings before choosing windows or sleeping space. [S-07, p4]
Water, sewer and power / unknown: The assessor sewer field says Yes; it does not establish connection location, condition or spare capacity. Establish drainage route and available water/electrical service before assuming a conversion layout. [S-01]
Mapped hazard / follow up: The reference parcel intersects the city liquefaction layer; an older permit also flags liquefaction. This is a mapping screen, not evidence of distress or a foundation conclusion. No methane feature returned in the tested layer; that is not site clearance. [S-04, S-05]

Current photos, measured base, foundations, utilities, easements and physical conditions remain unverified. No site visit, testing or utility-provider confirmation was performed.

06 / Review conclusion

Continue with verification first.

The records support a historical garage lead and a conversion question worth testing. They do not support committing to a final ADU layout or a construction budget.

Continue when: A clearer source resolves the garage record match, a measured base establishes the present envelope, and the required access, living facilities and services can be tested meaningfully.
Adjust when: The measured interior or structure cannot support the intended use without work beyond the assumed conversion. Compare a smaller brief or a separately scoped alternative; no alternative design has been reviewed here.
Pause when: A material record mismatch, unsafe condition, unresolved agency issue or unacceptable scope prevents a credible next design step. Resolve that controlling item before developing drawings.
Immediate recommendation: Obtain the present garage measurements and photos, clarify the obscured record field, and verify current agency status. Then scope a compact conversion layout if the evidence supports it.

Deliverable now: a conditional documentary review and prioritized information plan. Design feasibility remains conditional on the missing property, building and agency evidence.

07 / A practical next step

Resolve the questions in order.

The first three actions establish a usable base. They do not require committing to a full drawing package.

1 / Requester + measurement provider: Supply garage and site photos, a dimensioned existing base and the intended living arrangement. Include boundaries, nearby structures, access and utilities. Licensed boundary survey work, if needed, is separate from building measurement.
2 / Studio + records agency: Clarify the garage scan and legal-lot discrepancy. Check final/occupancy history and current status of historical range-file entries through the appropriate current records channel. Fee, copy permissions and response time are unconfirmed; no request has been sent.
3 / Project team: Review current planning overlays, fire separation, structural reuse and service routes. Decide which licensed consultant or provider input is needed. Their services and charges are separate.
4 / Studio + requester: Agree the next scope, deliverables, revision rounds, fee and schedule before drawing work. This sample is not an agreement, start authorization, cost estimate or permit prediction.
Written follow-up: The offered review includes one consolidated round of written follow-up questions within seven calendar days of delivery. New research, scenarios, drawings and consultant analysis are separately scoped.

This is a study prepared from public records and a requester-supplied question. No paid engagement, site attendance, agency contact, submitted application or approval is represented.

08 / Evidence and coverage

What was reviewed, and what was not.

Reviewed October 21, 2026. The private case report retains full record identifiers and links. This public extract uses source IDs and non-identifying agency entry points.

S-01 / Assessor: Live parcel summary and building/land characteristics inspected. One active exact-address parcel matched. Facts are assessment records, not field or title evidence. Records effective October 16, 2026.
S-02 to S-04 / City scans: 1924 dwelling, 1924 private garage and 2000 window-work application: three PDFs, two pages each; all six pages visually reviewed. No approved building plans, garage final or occupancy certificate obtained.
S-05 / Official city GIS: City-boundary, reference parcel, generalized zoning, liquefaction and methane layers queried. Parcel geometry is labeled as of September 10, 2021; it is a reference outline, not a survey. Layers may lag current legal or site conditions.
S-06 to S-08 / Guidance + index: HCD ADU Handbook, March 2026; LADBS P/BC 2026-150, revised August 13, 2026; PRISM address and parcel searches. Address search: 31 index entries. Parcel search: 11, all within those 31. These are entries, not 31 unique permits.
Access and reuse limits: Six permit-index entries include apparent legacy/scanned pairs; 25 range-file entries had no accessible scan in this search. Historic open/closed metadata is not current enforcement status. The separate live permit/profile lookup could not be completed; current agency status remains unverified. No paid copies, blueprints or agency requests were obtained.

Agency entry points below do not identify the property. Redacted source copies follow on pages 13-30; originals and record-specific URLs remain private. No third-party map or aerial photograph is reproduced.

Source PDF appendix.

Eighteen source pages follow the twelve-page report. Three historical permit PDFs are redacted; the general city bulletin has no subject-property identifiers. Only rebuilt public copies are appended and embedded. Exact record links and unchanged originals remain private. Redactions remove direct identifiers; the retained record facts are not a guarantee against identification by comparison with other public records.

S-02: 1924 dwelling application

Report pages 13-14. 2 source pages.

Redacted public reference copy. Property and personal identifiers, record numbers, signatures and location references have been removed from the permit scans. Original pages were rendered to pixels and rebuilt; concealed text, annotations, links and source-file metadata are not carried forward. Retained facts are historical evidence only. This is not a certified copy or proof of current approval.

Download S-02 public reference PDF

Selected legible fields and page description; not a complete or certified transcription

Source page 1

Selected legible fields, source page 1. Department of Buildings, application for the erection of frame buildings, Class D. Purpose: bungalow. Four rooms; one family. Proposed dimensions read 25 by 27 feet. Highest point reads 14 feet. One story; sandy ground; wooden siding. The handwritten existing-building response appears to read no. Names, addresses, location fields, record identifiers and signatures are removed. A historical application does not establish present condition or a final occupancy record.

Source page 2

Source page 2. For Department Use Only: application, construction, zoning, set-back line, ordinance and fire-district rows contain handwritten review marks. The remarks area has no substantive legible project narrative. Marginal handwriting and possible identifying marks are removed. These historic form entries are not a retrieved contemporary final inspection or certificate of occupancy.

S-03: 1924 private-garage application

Report pages 15-16. 2 source pages.

Download S-03 public reference PDF

Selected legible fields and page description; not a complete or certified transcription

Source page 1

Selected legible fields, source page 1. Department of Buildings, application for the erection of frame buildings, Class D. Purpose reads private garage. Tentative dimensions read 12 by 18 feet; the highest-point reading is approximately 9 feet 6 inches. One story; sandy ground; siding. These are uncertain handwritten readings, not current measurements. Location and legal-description fields, people, record identifiers and signatures are removed. The original legal-lot discrepancy remains unresolved in the report; redaction does not resolve it.

Source page 2

Source page 2. For Department Use Only: application, construction, zoning, set-back line, ordinance and fire-district rows contain handwritten review marks. The remarks area has no substantive legible project narrative. Marginal handwriting and possible identifying marks are removed. This page does not establish that the present garage is the recorded structure or that a garage-to-ADU conversion has been approved.

S-04: 2000 window-work application

Report pages 17-18. 2 source pages.

Download S-04 public reference PDF

Selected legible fields and page description; not a complete or certified transcription

Source page 1

Selected legible fields, source page 1. Application for building permit and certificate of occupancy; building alteration/repair; one- or two-family dwelling; over-the-counter permit. Printed status: Ready to Issue. Existing use: dwelling, single family. Site building count: two, SFD and GAR. Description: replace six windows with the same existing size; patch drywall and stucco as needed. Property, location, people, record and transaction identifiers are removed. The generic form title is not an obtained certificate of occupancy. The report preserves the disagreement with the index status.

Source page 2

Source page 2. Continuation of the window-work form: structural inventory, application comments, building-relocation line, contractor/architect/engineer information, licensed-contractor declaration, workers compensation declaration, construction lending agency, asbestos removal, owner-builder declaration and final declaration. Identity-bearing fields and all signatures are removed. The remaining declarations are application boilerplate, not a final inspection, approval of a garage conversion or proof of present conditions.

S-07: LADBS ADU conversion bulletin

Report pages 19-30. 12 source pages.

Agency guidance reference copy, saved during the October 21, 2026 records review. This general bulletin contains no subject-property identity. Its pages are reproduced as flattened reference images; embedded links, annotations and original file metadata are not carried forward. Guidance explains a possible review route, not confirmation that this garage qualifies. Check current rules and project conditions before relying on it.

Download S-07 public reference PDF

Extracted bulletin text

Source page 1

Information Bulletin / Public - Building Code - Accessory and Junior Accessory Dwelling Units Reference No.: GCS 66314-66332, 66333-66339 Effective: 07-15-2019 Document No.: P/BC 2026-150 Revised: 08-13-2026 Previously Issued as: P/BC 2023-150 dbs.lacity.gov As a covered entity under Title II of the Americans with Disabilities Act, the City of Los Angeles does not discriminate on the basis of disability and, upon request, will provide reasonable accommodation to ensure equal access to its programs, services and activities. 1/12 City of Los Angeles – Department of Building & Safety Accessory and Junior Accessory Dwelling Units I. Purpose This bulletin outlines development standards for Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) per California Government Code Sections (GCS) 66314-66331 (ADUs), 66333-66339.5 (JADUs), and Los Angeles Ordinance 186,481. II. Scope This Information Bulletin is intended to provide information and minimum requirements for the following types of ADUs and JADUs: 1. Conversion of an existing permitted or unpermitted building (or portion thereof) to an ADU or JADU. 2. Permitting of existing unpermitted ADU or JADU constructed or converted after January 1, 2020. 3. Permitting of an unpermitted ADU or JADU constructed before January 1, 2020 which do not fall within the scope of information bulletin P/BC 2026-161 (Streamlined Permitting of Unpermitted Dwelling Unit as ADU/JADU Under AB 2533). Per AB 2533 (GCS 66311.7), local agencies cannot deny permits for unpermitted ADUs or JADUs built before January 1, 2020, based on violations of the following: • California Building Standards Code (CBSC) (Title 24) includes the California Residential Code (CRC), California Building Code (CBC), California Mechanical Code (CMC), California Energy Code, California Plumbing Code (CPC) among others. • GCS 66310-66313.5, 66333 - 66339.5 • Any local ordinance regulating ADUs or JADUs Compliance with the current edition of the CRC and/or CBC as amended by the City of Los Angeles, and the Zoning Code is mandatory for projects specified in items 1 or 2 above. The standards outlined on Section IV are based on the 2025 CRC as amended by the City of Los Angeles. Projects that fall outside the scope o f the CRC, shall comply with the CBC as amended by the City of Los Angeles. Conversely, projects outlined in item 3 above (AB 2533) must demonstrate that they do not constitute a substandard building under Health and Safety Code (HSC) Section 17920.3 (Se e Form AB2533-01: City of Los Angeles Substandard Checklist (LASC)). III. Procedures A. General Plan Requirements for Building Permit Submittal A complete set of plans are required for plan check submittal. Document submittal requirements are listed in Information Bulletin P/GI 2026-008.

Source page 2

Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 2/12 B. Records Research If the existing building has previously been permitted, a copy of the building’s Certificate of Occupancy and previous building permits shall be provided at the plan check stage to verify the permitted use of the structure. C. Application Submittal for Unpermitted ADU of JADU Pursuant to AB 2533 Constructed Before January 1, 2020 (Item 3 under Section II) For an unpermitted ADU/JADU, which does not fall within the scope of information bulletin P/BC 2026 -161 and constructed before January 1, 2020, the owner may arrange for a third-party inspection by a licensed contractor to assess whether the unpermitted ADU or JADU meets the minimum requirements outlined in Section 17920.3 of the HSC. A checklist of these minimum requirements (Form AB2533-01: City of Los Angeles Substandard Checklist (LASC)), provided at the end of this bulletin, is intended to inform the owner whether any improvements are needed before submitting the plans for review. All non-compliant items of the unpermitted ADU or JADU shall be identified and corrected on the submitted plans. The permit application and project plans shall clearly state whether the project is proposed pursuant to AB 2533 in the project work description. Third-party inspections are for the homeowner's information only; they do not resolve or exempt the homeowner from the required permit(s) and inspection(s) by the LADBS. Results of the third -party inspections are not required to be submitted or disclosed to LADBS. D. Acceptable Evidence for Establishing the Construction Date of an Unpermitted ADU or JADU (Only for an unpermitted ADU/JADU constructed before January 1, 2020) Pursuant to AB 2533 • Documentation establishing that the unpermitted structure was built prior to January 1, 2020, shall include at least one of the following: • Rent Stabilization Ordinance (RSO) Rent Registration Certificate. • Contractor's bills and/or building material receipts. • Utility bills or insurance documents pertaining to the unpermitted construction. • Code Enforcement case documentation (i.e., Orders to Comply). • A signed and dated lease agreement. • Real estate documents such as loan documents, appraisal, MLS listing, etc. • Other documents acceptable to the Department. IV. General Building Requirements Projects submitted under Section II, Item 3 (AB 2533) must include sufficient documentation to demonstrate that a structure is not substandard pursuant to HSC Section 17920.3. See Form AB2533 -01: City of Los Angeles Substandard Checklist (LASC). While projects under AB 2533 are not required to comply with the CBSC, their evaluation will rely on Form AB2533-01. Alternatively, projects (or portions thereof) submitted under AB 2533 and constructed prior to January 1, 2020, may choose to comply with the latest edition of the CBSC, as detailed below. For all other projects—including those falling under Items 1 and 2 of Section II—project plans (and in some cases calculations) are required to verify compliance with the latest CBSC edition. The minimum crit eria specified in the

Source page 3

Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 3/12 following Building Requirements are mandatory for Section II, Items 1 and 2 projects, whereas they are optional for projects subject to Section II, Item 3 (AB 2533). A. Foundation Existing foundation components are allowed to remain in place provided that they are in good condition and comply with the conventional construction requirements at the time the building was built or any other time. 1. Exterior walls and interior bearing walls shall be supported on continuous footings. 2. Footing widths and depths beneath natural and finished grades (using whichever grade is lower) must adhere to Section 403.1 of the 2025 California Residential Code (CRC), assuming a soil load -bearing capacity of 1,500 psf. If existing foundations show no signs of distress or cracking (such as from expansive soils), they shall conform to the minimum dimensions required by CRC 403.1. 3. Minimum concrete strength for new or underpinned footings shall be 2,500 psi. 4. Existing footings may remain provided they are free of excessive cracking or damage and meet the minimum dimension criteria specified in item 2 of Subsection A of Section IV above. All new footings must meet expansive soil requirements (24” depth for exterior footings and 18 -inch depth for interior footings) and be reinforced using four ½-inch diameter deformed reinforcing bars, with two bars placed at the top and two at the bottom. 5. Existing slabs are allowed to remain with an approved sealant as a moisture barrier. New concrete floor slabs shall be at least 3-½ inches thick and shall be reinforced with ½-inch diameter deformed reinforcing bars. Reinforcing bars shall be spaced at maximum 16 inches on center. New concrete floor slabs on grade shall be placed on a 4-inch fill of coarse aggregate or on a 2-inch sand bed covered with a minimum 6-mil moisture barrier membrane. 6. Existing anchor bolts are allowed to remain. New anchor bolts shall be a minimum of ½ - inch diameter x 10” long with 7” embedment spaced at a maximum 6 feet on center. Post -installed anchor bolts shall have an approved evaluation report and shall require special inspection by a deputy inspector. 7. Existing sills and sleepers are allowed to remain provided that they are pressure treated or wood resistant to decay. New sills and sleepers on a concrete slab which is in direct contact with the ground shall be preservative-treated wood in accordance with American Wood Protection Agency (AWPA) U1. 8. Concrete foundation walls shall extend a minimum of 8 inches above the finished grade adjacent to the foundation. Concrete foundation walls with a minimum of 6 inches above finished grade is allowed for existing unpermitted structures. 9. New exterior plaster (stucco) walls shall be provided with a corrosion resistant weep screed. 10. Existing buildings located in a Methane Buffer Zone or a Methane Zone shall not be required to comply with LABC Chapter 71 Methane Mitigation, provided the existing slab remains undisturbed and has only hairline cracks.

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 4/12 B. Framing 1. Existing wall framing may remain where it complies with CRC Table 602.3(5) for interior walls and Table 602.3(6) for exterior walls. New framing or altered framing shall comply with current CRC requirements as amended by the City of Los Angeles. See CRC 602.3.1 for additional requirements. 2. The infill walls of existing openings such as a garage door opening shall be 2x4 studs at a maximum 16 inches on center. Existing garage door headers are permitted to remain. 3. Headers for new openings in existing walls shall comply with current CRC regulations. See CRC T ables R602.7(1) and R602.7(2). 4. Exterior walls with new openings shall be provided with Braced Wall Lines braced with Wood Structural Panels (WSP) as required by CRC 602.10.5. WSP braced wall panels shall be a minimum of 4 feet in length and shall have a minimum of 15/32-in. thickness with 8d common nails at 6 in. spacing along panel edges, 12 inch spacing at intermediate supports and 3/8 inch distance to panel edge. See the CRC Table R602.10.4 as amended by the City of Los Angeles (LAMC Table 91.5.602.10.4 ). 5. For further information regarding prescriptive framing, please see information bulletin P/BC 2026 -004 - Wood Frame Prescriptive Provisions - One Story Residential Construction Only (ladbs.org). For structures that are over one-story, refer to the CRC prescriptive provisions. Alternatively, calculations by a California-licensed professional to demonstrate compliance with the CRC is also acceptable. C. Means of Egress and Emergency Escape 1. The egress (main entry) door shall be side-hinged and shall be a minimum of 3 feet in width and 6 feet 8 inches in height. 2. Emergency escape and rescue openings shall be provided from every sleeping room and shall open directly to a yard or public way. Emergency escape and rescue openings shall have a minimum clear height of 24 inches, a minimum clear width of 20 inches, and a minimum openable area of 5.7 square feet. The bottom of the emergency escape opening shall not be greater than 44 inches above the finished floor. D. Fire Protection and Fire-Resistance Rated Construction 1. Automatic fire sprinklers are required only if the main dwelling already has fire sprinklers or if fire sprinklers are required due to any major remodeling work done to the dwelling in conjunction with the ADU(s) or JADU such as when alteration (including mezzanines but excluding the ADU(s) or JADU) within any one-year period exceeds 50% of the replacement cost of the existing dwelling. See CRC R309.2 as Amended by the City of Los Angeles (LAMC 91.5.309.2). 2. Exterior walls less than 5 feet from the property line of a non-sprinklered ADU(s) or JADU conversion or less than 3 feet from the property line of a sprinklered ADU(s) or JADU conversion shall be 1 -hour fire-resistance rated construction. The 1-hour fire-resistance wall can be achieved by installing ⅝-inch Type X gypsum board on the entire interior side of the wall up to the roof line. 3. Smoke alarms shall be provided in each sleeping room and immediately outside of each separate sleeping area. Smoke alarms or smoke detectors shall be installed a minimum of 20 feet horizontal distance from a permanently installed cooking appliance.

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 5/12 Exception: Ionization smoke alarms with an alarm-silencing switch or photoelectric smoke alarms shall be permitted to be installed 10 feet or greater from a permanently installed cooking appliance. Photoelectric smoke alarms shall be permitted to be installed greater than 6 feet from a permanently installed cooking appliance where the kitchen or cooking area and adjacent spaces have no clear interior partitions and the 10-foot distances would prohibit the placement of a smoke alarm or smoke detector required by other sections of the code. Smoke alarms listed for use in close proximity to a permanently installed cooking appliance. Figure 1: Smoke Alarm Placement Diagram E. Interior Environment 1. Habitable rooms shall have a floor area of not less than 70 square feet and shall not be less than 7 feet in any horizontal dimension. A minimum ceiling height of 7 feet shall be provided throughout. (CRC R312) 2. The ADU(s) and JADU shall provide permanent provisions for cooking, at a minimum: kitchen sink, cooktop, and refrigerator, each with 30 inches minimum clear space in front. 3. Habitable rooms shall have natural ventilation through an opening of not less than 4 percent of the room’s floor area, unless a whole-house mechanical ventilation system is installed. (CRC R325) 4. Habitable rooms shall have natural lighting through an aggregate glazing (window) area of not less than 8 percent of the room’s floor area, unless artificial lighting is installed to produce an average illumination of 6 foot-candles at a height of 30 inches above the floor in conjunction with a whole - house mechanical ventilation system. (CRC R325)

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 6/12 5. The unit shall provide heating facilities capable of maintaining a room temperature of not less than 68°F at a point 3 feet above the floor and 2 feet from exterior walls. Portable space heaters shall not be used to achieve compliance with this section. The CF1R Residential Certificate of Compliance will dictate what means of heating will be provided. (CRC R325) Note: Projects utilizing AB 2533 are not required to comply with the California Energy Code. 6. The unit shall provide a separate bathroom containing a toilet, sink, and bathtub or shower. Bathrooms shall provide mechanical exhaust fans with a minimum intermittent ventilation rate of 50 cubic feet per minute. The center line of any toilet shall be located a minimum 15” from any side wall or obstruction, and a minimum 24” clear space in front of the toilet shall be provided. (CRC R325, CPC 402) 7. Attics shall provide a minimum cross ventilation of 1/150 of the area of the vented space. An attic access opening shall be provided with minimum dimensions of 22 inches by 30 inches and a minimum headroom clearance of 30 inches. The attic access opening shall be located in a hallway or other readily accessible location. (CRC R806, R408) F. Energy / Green Building / Plumbing / Electrical Codes 1. All new work done to convert or permit existing unpermitted buildings or porti ons of buildings to an ADU(s) or JADU shall comply with California Building Energy Efficiency Standards (Title 24 - Part 6). The CF1R Residential Certificate of Compliance shall be attached to the plans but need not be registered with a certified HERS provider and no HERS field verification is required. Note: For ADUs built prior to January 1, 2020 and seeking permits pursuant to AB 2533, compliance with Title 24 Part 6 (California Energy Code) is not required. 2. All new work necessary to construct the ADU(s) or JADU shall comply with applicable Los Angeles Green Building Code requirements. At a minimum, Green Building Code Forms GRN 1, GRN 11, GRN 14, and GRN 16 shall be attached to the plans as needed for the new work. Note: Projects utilizing AB 2533 are not required to comply with Green Code requirements. 3. Detached ADUs are not required to have independent service utility (drainage) connections provided the existing service utility complies with the current plumbing code. 4. The ADU(s) shall have a separate water shut off valve, accessible in the unit. 5. The ADU(s) shall require a separate electrical panel. V. Setbacks for Existing Buildings An unpermitted ADU or JADU pursuant to AB 2533 (a project described in ite m 3 of Section II) cannot be denied a permit provided the existing zoning or building code violations do not present a threat to public health and safety, (GCS 66311.7 (a)). Therefore, an unpermitted ADU or JADU can maintain their existing non -complying setbacks provided the existing reduced setbacks do not pose a threat to public health and safety. See Form AB2533 -01 for specific requirements and limitations.

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 7/12 In all cases pursuant to items 1 or 2 under Section II, compliance with the current CBSC is requ ired and if a setback cannot be provided, then the exterior walls and openings must be shown to comply with the current requirements of the CBSC (see CRC Table R302.1(1) and Table R302.1(2) or CBC Table 705.5 and Table 705.8 as applicable). VI. Typical Clearances (Approval from other City Departments) Approval from other departments in the form of clearances will be required prior to permit issuance. Clearances will be generated by plan check during the plan check process and must be approved by relevant dep artments before a permit and Certificate of Occupancy are issued. The following is a list of common clearances that a project may receive. Not all listed clearances will apply to every project, and additional clearances not shown below may be required. Clearances are project- and parcel-specific and may vary from one project to the next. A. Los Angeles Department of Water and Power (LADWP) Approval from LADWP will be required if the existing structure is located in a Public Utility Easement or within 10 feet of a Public Utility Easement. Additional information may be found in the following link: LADWP Encroachment Process. B. Los Angeles Department of Public Works, Bureau of Engineering (BOE) Approval from BOE is required for all ADUs and JADUs for the following: 1. Assessment of sewer capacity and availability (i.e., "sewer availability" clearance). 2. Permit applications for unpermitted dwelling units or projects that alter the site's existing drainage pattern require roof drainage clearance. 3. An address clearance to assign the unpermitted ADU/JADU an address. C. Los Angeles Fire Department (LAFD) Approval is required from LAFD for Hydrants and Access. D. Los Angeles Department of City Planning A department of City Planning Clearance will be required to ensure compliance with local zoning requirements as allowed by AB 2533 and to verify that the site is zoned for residential uses as required by AB 2533. E. Other City Department Clearances Other department clearances may apply depending on project location or site features. VII. Permit Issuance Once all identified corrections have been addressed in both the plans and the checklist, and all the clearances from other departments are done, permits can be issued.

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 8/12 VIII. Inspection Once a permit is issued, the owner or applicant can request an inspection. The LADBS inspector, at their discretion, may require existing covered or concealed work to be exposed for examination during the inspection to verify appropriate installation. IX. Certificate of Occupancy The Certificate of Occupancy will be issued by the LADBS after the final inspection is approved and the required clearances from other city departments have been approved. X. Fee Waivers and Charges Any impact fees charged for an ADU of 750 sf or more shall be charged proportionately in relation to the square footage of the primary dwelling unit. Impact fees include Residential Development Fee (LAMC 21.13. 3) and Dwelling Unit Construction Tax (LAMC 21.10.3). Homeowners applying for a building permit to permit an unpermitted ADU or JADU constructed before January 1, 2020 (pursuant to AB2533), are not required to pay impact fees, connection, or capacity char ges unless utility infrastructure improvements are necessary to meet the health and safety standards as outlined in the Health and Safety Code (HSC) Section 17920.3 and when the fee is authorized by GCS 66311.5 subdivision (e). ADUs and JADUs are exempt from Park Fees (LAMC 12.33) and Affordable Housing Linkage Fee (LAMC 19.18). LAUSD School District Fees are required for ADUs larger than 500 sf per Section 1760 of the California Education Code.

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 9/12 Form AB2533-01: City of Los Angeles Substandard Checklist (LASC) Code sections below in the table reference the 2025 CRC and the 2025 CBC and are for reference only. An unpermitted ADU or JADU project pursuant to AB 2533 is not required to meet the current California Building Standards Code (CBSC)—which include but is not limited to, the CRC, CBC, CMC, California Energy Code, CPC among others. For the purpose of complying with AB 2533, the ADU/JADU may comply with current code requirements or the codes in effect at the time the unpermitted ADU/JADU was constructed. Additionally, these systems must have been maintained in a safe and functional condition. No. Compliant Violation Description Smoke Detectors: 1 ☐ ☐ Operational and installed in every sleeping room. (CBC 907.2.11.2, CRC R310.3) 2 ☐ ☐ Installed outside each separate sleeping area in the immediate vicinity (hallways). (CBC 907.2.11.2, CRC R310.3) 3 ☐ ☐ Installed on every level of the dwelling unit, including basements. Carbon Monoxide Alarms: 4 ☐ ☐ Operational and installed outside each separate sleeping area in the immediate vicinity of bedrooms (hallways), on every occupiable level including basements, and in bedrooms with fireplaces. (CBC 915.4, & CRC R311) 5 ☐ ☐ If there is an attached garage with an opening into the dwelling unit, or a fuel - fired appliance or fireplace in the home, alarms should be installed in each level of the dwelling. Emergency Egress & Exit Door: 6 ☐ ☐ Emergency egress windows or doors are provided in every sleeping room. No special knowledge to open emergency windows. (CBC 1031.2, CRC R319.1) 7 ☐ ☐ The window or door must have a minimum clear opening width of 20 inches and a clear opening height of 24 inches. (CBC 1031.3, CRC R319.2) 8 ☐ ☐ The window or door must provide a minimum net clear opening of 5.7 square feet (or 5 square feet for ground-floor windows). (CBC 1031.3, CRC R319.2) 9 ☐ ☐ The exit door shall be a minimum of 3 feet in width. (CRC R318.2) 10 ☐ ☐ There are no obstructions (such as bars, grilles, or security devices) that could impede escape or rescue in an emergency. Mechanical, Electrical and Plumbing: 11 ☐ ☐ Functional water closet, lavatory, or bathtub or shower in a dwelling unit. (CRC R326.1) 12 ☐ ☐ Functional kitchen sink. (CRC R326.2) 13 ☐ ☐ Hot and cold running water to plumbing fixtures. (CRC R326.4) 14 ☐ ☐ All plumbing is in good and safe condition and is free of cross connections and siphonage between fixtures. 15 ☐ ☐ A water heater must be strapped within the upper ⅓ and lower ⅓ of its vertical dimensions. (CPC 507.2) 16 ☐ ☐ Connection to required sewage disposal system. (CRC R326.4) 17 ☐ ☐ The dwelling unit shall be provided with adequate heating. (CRC R325.8, CBC 1203.1) 18 ☐ ☐ Bathroom ventilating fans are provided. (CRC R325.3, CBC 1202.5.2.1)

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 10/12 No. Compliant Violation Description 19 ☐ ☐ All mechanical equipment is in good and safe condition. 20 ☐ ☐ All wiring is in good and safe condition and working properly. 21 ☐ ☐ The electrical panel is in good and safe condition and working properly. 22 ☐ ☐ Habitable rooms (spaces used for sleeping, living, cooking, or eating) must have natural light and ventilation openings (e.g. windows) unless adequate artificial lighting and mechanical ventilation systems are provided. (CRC R325.1.2, CBC 1202.1) 23 ☐ ☐ Habitable room floor areas are not less than 70 square feet, and not less than 7 feet in any horizontal dimension, except kitchens. Bathrooms, toilet rooms, closets, halls, storage or utility spaces and similar areas are not considered habitable spaces. (CRC R312, CBC 1208) 24 ☐ ☐ Required electrical lighting is provided within rooms used for living, sleeping, eating, bathrooms, kitchens and hallways where natural lighting is not provided or inadequate. Stairways (and landings) shall be provided with an artificial light source. (CRC R325, CBC 1204) Structural Hazards Including but not Limited To: 25 ☐ ☐ Adequate foundations are provided. May require exposing an area of foundation to verify. (CRC R403.1, CBC 1808.8) 26 ☐ ☐ Adequate flooring or floor supports are provided. There is no sagging in the floor. Adequate flooring or floor supports are provided. An area of finish flooring may need to be removed to expose the flooring supports in order to verify. An engineering assessment or compliance with wood frame prescriptive provisions IB P/BC 2026-004 (Table 9) shall be provided. 27 ☐ ☐ Flooring or floor supports are of sufficient size to carry imposed loads with safety. An engineering assessment or compliance with wood frame prescriptive provisions IB P/BC 2026-004 (Table 9, 10) shall be provided. 28 ☐ ☐ There are no present members of walls, partitions, or other vertical supports that split, lean, or buckle due to defective material or deterioration. 29 ☐ ☐ There are no present members of ceilings, roofs, ceiling and roof supports, or other horizontal members which sag, split, or buckle due to defective material or deterioration. 30 ☐ ☐ There are no apparent members of walls, partitions, or other vertical supports that are of insufficient size to carry imposed loads with safety. An engineering assessment or compliance with wood frame prescriptive provisions IB P/BC 2026-004 shall be provided. 31 ☐ ☐ There is no damage to fireplaces or chimneys. 32 ☐ ☐ Adequate structural resistance to horizontal force: Existing let-in braces and stucco systems acceptable for one story ADUs or JADU only. An engineering assessment or compliance with wood frame prescriptive provisions IB P/BC 2026-004 (Table Titled: Bracing Requirements Based on Seismic Design Category) shall be provided. Nuisance, Dilapidation and Hazard: 33 ☐ ☐ Pool/Spa barriers/safety protection are provided. 34 ☐ ☐ There is no faulty weather protection present which may include: • Deteriorated, crumbling or loose plaster

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 11/12 No. Compliant Violation Description • Deteriorated or ineffective waterproofing of exterior walls, roofs, foundations or floors, including broken windows or doors • Broken, rotted, split, or buckled exterior wall coverings or roof coverings. 35 ☐ ☐ No accumulation of vegetation, debris, garbage, stagnant water, combustible materials, rodent harborages, or other fire, health, or safety hazards. 36 ☐ ☐ Habitable rooms have no signs of dampness. Bathrooms, toilet rooms, closets, halls, storage or utility spaces and similar areas are not considered habitable spaces. 37 ☐ ☐ Visible mold growth is not present, excluding the presence of mold that is minor and found on surfaces that can accumulate moisture as part of their properly functioning and intended use. 38 ☐ ☐ General dilapidation or improper maintenance of the unit is not present. Fire Rating and Openings: 39 ☐ ☐ For ADU/JADUs attached to the primary dwelling unit, a 1-hour fire-resistance rated wall is required between the primary unit and the ADU/JADU. (CRC R302.3.2, CBC 420.2) 40 ☐ ☐ A. For sprinklered buildings where an exterior wall is facing a property line: a. When the separation distance is less than 3 feet, the exterior wall shall be 1-hour rated and no openings are allowed. b. For a separation distance that equals 3 feet or more, no fire-resistance rating is required for the exterior wall and unlimited openings are allowed. (CRC Table R302.1(1)) B. For sprinklered buildings where an exterior wall is facing another building: a. When the separation distance is between 0 feet to less than 6 feet, the exterior wall shall be 1-hour rated and no openings are allowed. Distances less than 3 feet may require the adjacent building’s exterior wall to be 1-hour rated and have limited openings. b. For a separation distance that is 6 feet or greater, no fire-resistance rating is required for the exterior wall and unlimited openings are allowed. (CRC Table R302.1(1)) C. For non-sprinklered buildings where an exterior wall is facing a property line: a. When the separation distance is less than 3 feet, a 1-hour rated exterior wall shall be provided and no openings are allowed. b. For separation distances between 3 and 5 feet a 1-hour rated exterior wall shall be provided and openings are limited to 25%. c. For a separation distance that equals 5 feet or more, no fire-resistance rating is required and unlimited openings are allowed. (CRC Table R302.1(2)) D. For non-sprinklered buildings where an exterior wall is facing another building: a. When the separation distance is between 5 and 8 feet the exterior wall shall be 1-hour rated and no openings are allowed. Distances less than 5 feet may require the adjacent building’s exterior wall to be 1-hour

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Accessory and Junior Accessory Dwelling Units P/BC 2026-150 dbs.lacity.gov 12/12 No. Compliant Violation Description rated and have limited openings. b. For separation distances of 8 feet and less than 10 feet, a 1-hour rated exterior wall shall be provided and openings are limited to 25%. c. For separation distances of 10 feet or more, the exterior wall is not required to be rated and unlimited openings are allowed. (CRC Table R302.1(2)) Address: 41 ☐ ☐ The address identification shall be legible and placed in a position that is visible from the street or road fronting the property. (CRC R308.1, CBC 502.1) Owner’s Information Owner’s Signature: Date: Print Name: Phone: E-mail: Licensed (When used for 3rd Party Inspection) Contractor Name (Print): Date: Company Name (Print): License No.: License Class: E-mail: Phone:

Agency source links.

S-01: Los Angeles County Assessor
S-02 / S-03 / S-04 / S-08: LADBS PRISM records
S-05: City GIS layer directory
S-06: HCD ADU Handbook (March 2026)
S-07: LADBS P/BC 2026-150

Exact property and record identifiers and unchanged source files are retained in the private case report. Only rebuilt public reference copies are supplied here; no third-party map or aerial photograph is reproduced.

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