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AB 1033

Can I Sell My ADU Separately in San Diego? (AB 1033 Explained)

Last updated: May 2026

Separate ADU sale is one of the biggest California ADU topics of 2024 through 2026. In San Diego, the answer may be yes, but it is a condominium process, not a simple backyard lot split.

Direct Answer

San Diego guidance states that new or existing ADUs may be subdivided into condominiums and sold or otherwise conveyed separately from the primary residence when the requirements of local ADU condominium rules are satisfied.

That does not mean every ADU qualifies. Some ADUs with financing assistance, rent restrictions, deed restrictions, or affordability covenants may be excluded during the restricted term.

What AB 1033 Actually Does

AB 1033 authorized local agencies to allow the separate conveyance of primary dwellings and ADUs as condominiums. It does not automatically convert an ADU into a separate property. The local city or county must have rules in place, and the owner must satisfy condominium, subdivision, inspection, lienholder, utility, and disclosure requirements.

Common Requirements

Investor Reality Check

Separate sale can change the economics of an ADU, but it adds legal, mapping, lending, insurance, utility, HOA, and resale complexity. For many owners, renting the ADU may still be simpler than condominium conversion.

Related San Diego research: JADU vs ADU, ADU count rules, and size limits.

Building in LA instead? Check out our Los Angeles ADU Guide.

Source Notes

  • City of San Diego Information Bulletin 400
  • California HCD ADU Handbook and AB 1033 guidance
  • San Diego Municipal Code ADU condominium provisions

Informational only. Not legal, tax, real estate, investment, or permit approval advice.

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