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State Land Use Enacted Legislation

Bill # State Year Party Topic

SB 9

CA 2025 D Accessory dwelling units regulations, By-right zoning, Enforcement, Other streamlining, Written findings, burden and standard of proof

Provided by Furman

Summary

  • Requires all jurisdictions to allow for up to four units to be built on most existing single-family parcels in California (two units on original lot, lot splits with two units on each parcel).
    • Requires a proposed housing development containing no more than 2 residential units within a single-family residential zone to be considered ministerially, without discretionary review or hearing, if the proposed housing development meets certain specified requirements.
    • Authorizes a local agency to impose objective zoning, subdivision, and design standards, unless those standards would physically preclude construction of up to 2 units or either of the 2 units from being at least 800 square feet in floor area; additionally prohibits the imposition of setback requirements under certain circumstances, and setting maximum setback requirements under all other circumstances.
    • Requires a local agency to ministerially approve a parcel map for an urban lot split that meets certain specified requirements.
    • Requires an applicant to sign an affidavit that they intend to occupy one of the housing units as their principal residence for at least 3 years from date of approval of urban lot split (implicating perjury if not true).
      • Creates exceptions for community land trust or qualified nonprofit corporations.
      • Prohibits additional local owner-occupancy requirements.

Provided by lawmakers

Bill Title

Accessory Dwelling Units: Ordinances

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