AB 1033: ADU Condo Conversion Permits in Los Angeles

The short answer: state permission is not a Los Angeles sale approval

Assembly Bill 1033 created an optional local pathway for a primary home and its accessory dwelling unit or units to become separately conveyed condominiums. It did not turn every permitted ADU into a separately saleable property. A city or county must first adopt an implementing ordinance, and an eligible owner must then complete the applicable condominium, subdivision, safety, lender-consent and recordation requirements.

Status checked October 20, 2026: the City of Los Angeles describes AB 1033 implementation in the proposed Missing Middle LA ADU update, not as an operative general condominium-sale program. For unincorporated Los Angeles County, the official materials reviewed identify an ADU amendment still in draft evaluation; we did not identify an adopted, effective AB 1033 opt-in ordinance. Do not advertise an ordinary City or unincorporated County ADU as separately saleable based on AB 1033 alone. Obtain current written jurisdiction-specific confirmation before relying on a sale scenario.

This distinction matters financially. A legal ADU may provide rental housing or space for family while remaining on the same ownership title as the house. A separate sale requires another legal approval track. An ADU building permit, a separate address, independent utility billing or a property-tax assessment does not create a condominium title.

What the enacted state law actually requires

AB 1033 was approved October 11, 2023, as Chapter 752 of the Statutes of 2023 and became effective January 1, 2024. The chaptered bill amended former Government Code Section 65852.2. Following the ADU-law reorganization through SB 477, the optional condominium pathway is found in current Government Code Section 66342. Read that current section alongside the original bill rather than treating an old section number as the only operative authority.

Section 66342 says a local agency may adopt a condominium-conveyance ordinance. Any such ordinance must require compliance with the Davis-Stirling Common Interest Development Act and applicable objective Subdivision Map Act and local subdivision requirements. Before recording the condominium plan, the ADU needs a safety inspection evidenced by either a local certificate of occupancy or the specified housing-quality-standards report from a HUD-certified building inspector. A building permit without a completed safety sign-off is not the same evidence.

Each lienholder must consent before the subdivision map or condominium plan is recorded. A lienholder can refuse or impose conditions. Utility providers must be notified of the condominium creation and separate conveyance. A property already within an association also has the existing-association written-authorization requirement discussed below. These are statutory conditions, not optional documents an expediter can waive.

• Effective local opt-in ordinance and parcel eligibility
• Condominium and applicable subdivision compliance
• Required ADU safety-inspection evidence
• Every lienholder's documented consent before recordation
• Existing association authorization where applicable
• Utility notification and completed legal recordation

City of Los Angeles: a proposed Missing Middle LA pathway

City Planning's September 2026 Missing Middle LA fact sheet describes the ADU ordinance update as proposed and says AB 1033 would be implemented to allow qualifying ADUs to be sold separately as condominiums. It also describes proposed ministerial subdivision procedures for eligible ADU condominium sales. The stated public hearing was October 1, 2026, with written comments through October 16, 2026, to inform future City Planning Commission recommendations. Those dates are milestones in ordinance development, not an ordinance effective date.

At our October 20 review, those official materials did not establish an effective City AB 1033 sale program. A draft, a Council motion, a hearing or a staff recommendation does not itself authorize a sale. Before pursuing the condominium track, ask City Planning for the adopted ordinance number, effective date, applicable application instructions and confirmation that your specific site qualifies. If a later ordinance becomes operative, use its final text rather than the draft discussed here.

For the construction portion inside City limits, LADBS still reviews the ADU's building, structural, energy and trade scope. City Planning addresses zoning and any applicable subdivision track; other departments provide triggered clearances. Continue a viable ADU application for its lawful intended use only after the design and financing assumptions are clear. Do not represent the ordinary ADU plan-check clock as a deadline for future condominium approval.

Unincorporated LA County: a different government and no confirmed opt-in

Unincorporated communities such as Altadena are not LADBS territory. LA County Planning and County Public Works Building and Safety administer the applicable land-use and building processes. A City of Los Angeles ordinance, if adopted, would not automatically apply to an unincorporated County parcel. An incorporated city elsewhere in the county also makes its own local implementation decision.

The County's current ADU program directs readers to its 2026 ADU Ordinance Amendment project. That project's status page, updated July 2026 and reviewed for this article, calls it the Draft Evaluation Phase, says formal adoption dates have not been scheduled and expressly states that the draft materials do not carry the force of law. Its April draft addresses issues such as ADUs on newly subdivided lots; that is not evidence of an AB 1033 condominium opt-in.

The County's published 2024 ADU amendment materials retain a separate-sale restriction under the ownership provisions of Section 22.140.640. Taken together with the current draft-status information, the official materials reviewed do not establish a general AB 1033 separate-sale pathway in unincorporated LA County. We did not find an adopted, effective opt-in ordinance. Ask County Planning to confirm the current code and any subsequent Board action in writing before commissioning a condominium map or underwriting a separate sale.

This does not mean every separate conveyance is categorically impossible under every law. Government Code Section 66341 contains a distinct qualified-nonprofit/qualified-buyer framework with its own conditions. That narrow statutory route is not the general homeowner condominium option in Section 66342, and owners should obtain legal advice rather than treating either provision as interchangeable.

Eligibility: a legal ADU, a JADU and a condo are different things

A standard ADU is an independent residential unit with the required living facilities, permitted under applicable ADU rules. It can be attached, detached or created through an eligible conversion. AB 1033 changes a potential ownership pathway where locally implemented; it does not excuse illegal construction, erase building corrections, legalize an informal garage apartment or expand the ADU's approved size and use.

A junior accessory dwelling unit is a different legal category, generally limited to 500 square feet and created within qualifying single-family residential space. Government Code Section 66333 requires a recorded restriction against selling a JADU separately from the single-family residence. The fact that Section 66342's consumer notice refers to ADU and JADU information checklists does not grant JADUs the same separate-sale entitlement. Do not label a JADU an ADU to bypass its recorded restrictions.

Existing permit history, certificates, affordability covenants, tenant occupancy, easements and utility access must be examined before a conversion strategy is selected. A current tenant may trigger notice, purchase, relocation or other protections under applicable law. A condominium strategy is not permission to displace tenants or ignore recorded covenants. Counsel should determine the legal requirements, and the permit team should keep the plans and approval conditions consistent with that advice.

Subdivision maps and HOA obligations: not an SB 9 lot split

A condominium ordinarily creates separately owned interests with defined common property and shared responsibilities; it does not necessarily divide the ground into independent fee-simple lots. That makes it different from an SB 9 urban lot split. A separate street address is useful for identifying a dwelling, but it is not a recorded condominium plan or an approved subdivision map.

Where the local pathway exists, the surveyor or civil engineer and real-estate attorney coordinate the map and condominium plan, legal descriptions, access and utility easements, common areas and governing documents. The reviewing agency applies the applicable objective subdivision requirements. The exact preliminary-map, final-map, recordation and tenant-protection requirements must be established for the jurisdiction and project, not copied from another city's AB 1033 checklist.

Davis-Stirling requirements mean owners should plan how roofs, driveways, landscaping, insurance, utility lines and maintenance costs will be shared. An association does not become unnecessary merely because the development has two homes. If the property is already within a planned development with an existing association, Section 66342(g) requires its express written authorization before recording the new condominium plan: approval at a duly noticed board meeting and membership approval if required by its governing documents.

Rules protecting ADU construction against unreasonable private restrictions should not be confused with the separate written-consent condition for condominium creation. Have association counsel review the existing CC&Rs before spending on a map.

Financing, title, insurance and taxes: questions for your own advisors

Order a current title report and identify every lienholder early, including junior loans and recorded liens rather than only the first mortgage. Under Section 66342, consent is required for the map and condominium plan, including later modifications as specified by the statute. A lender may refuse consent or require a collateral modification, payoff, refinance or other conditions. Do not assume a construction-loan approval includes condominium-recordation consent.

Ask your lender and mortgage advisor whether a retained low-rate loan can stay in place, what release or refinance conditions apply and whether a future purchaser can obtain financing for the proposed condominium project. Ask your title company whether the proposed legal descriptions, easements and recordation package are insurable. Consult your attorney, insurer and tax advisor about common-interest-development documents, liability coverage, assessments, transfer consequences and any reassessment issues.

Ocean Permits does not promise loan approval, lender consent, tax savings, a sale price or marketability. A project can be physically buildable while its proposed ownership or financing structure remains unworkable. Resolve those independent questions before representing a future ADU sale as the source of construction repayment.

A practical sequence from feasibility to any future separate sale

1. Confirm the address, assessor parcel number and actual city or County jurisdiction. Verify the effective local ordinance and application route first. If no operative opt-in exists, separate the lawful ADU project from an unapproved future condominium assumption.

2. Collect the title report, recorded restrictions, existing association documents, prior building permits, approved plans and occupancy records. Have the legal, survey and lender teams screen obstacles before the architect commits to a sale-dependent design.

3. Prepare the building scope. For a City parcel, coordinate the LADBS submittal, structural and energy documents, utilities and any Planning clearances. County parcels follow County Planning and Public Works procedures. New construction, legalization and an already-finaled ADU have different workloads.

4. Where a local condominium program is effective and the property qualifies, coordinate the agency's map and condominium applications with the surveyor and attorney. Address access, utilities, common areas, tenant obligations, safety evidence, association authorization and lender consent as distinct tasks.

5. Complete construction inspections or the required safety-evidence route, satisfy approval conditions and have the responsible legal/title professionals confirm the complete recordation package. Recordation and a legally supportable conveyance are not replaced by an expediter's status report or by building-permit issuance.

Budget and schedule without inventing a Los Angeles conversion fee

There is no verified flat Ocean Permits price or universal LA AB 1033 conversion fee in this article. Building plan check, permits and applicable utility or impact charges are separate from survey, engineering, legal, title, lender, insurance and recordation costs. Existing lawful ADUs and new-build projects have different budgets. Obtain current agency assessments and written professional proposals with exclusions.

We also do not quote an end-to-end City or County condominium processing time for a pathway not established in the reviewed official materials. A future ordinance's effective date, application readiness, agency map review, tenant obligations and lender consent may control the critical path. The ordinary ADU review rules do not guarantee a separate-sale closing date. A feasibility review can identify those dependencies without promising an approval the jurisdiction has not made available.

How Ocean Permits helps with the permit side

Ocean Permits & Development is a women-owned Los Angeles permit expediting firm founded in 2021 by Katherine Amaya. Our ADU permit expediting service coordinates building applications, review comments, agency clearances and inspection closeout. Our preliminary property feasibility study starts with jurisdiction, records, zoning and scope so owners can distinguish a viable ADU from an unsupported condominium-sale assumption.

We coordinate with your architect, engineer, surveyor, attorney and lender rather than replacing their professional responsibilities. Tell us whether your goal is family housing, rental use, a new ADU or a possible future condominium sale. Call 213-277-8777 or request a feasibility consultation before purchasing a property or commissioning sale-dependent plans. This article is educational permit guidance, not legal, tax, lending or investment advice.

Local adoption status — checked October 20, 2026

This is a dated source review, not a substitute for a current written determination for your parcel.

The separate qualified-nonprofit framework in Government Code 66341 is not the general AB 1033 local opt-in discussed here.

Separate the workstreams before setting a budget

These are planning categories, not an official fee schedule or an Ocean Permits quote. Request project-specific written proposals.

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