AB 507 · Housing Laws Navigator
Bills · 2025-2026 Regular Session

AB 507

Adaptive reuse: streamlining: incentives.Ch. 493, Stats. 2025 · chaptered 2025-10-10 · Current law

Key provisions · Claude summary of the digest, not bill text

Made qualifying adaptive reuse projects a use by right in nearly all zones with streamlined, ministerial review, affordability and labor requirements, fee limits, and an optional tax increment incentive, operative July 1, 2026.

  • Use by right. Deemed adaptive reuse projects a use by right in all zones, subject to streamlined, ministerial review, except industrial zones that do not permit residential uses.
  • Building eligibility. Required the building to be less than 50 years old or meet historic preservation requirements, such as an affidavit of compliance with the Secretary of the Interior's Standards for Rehabilitation or receipt of historic rehabilitation tax credits.
  • Affordability. Required rental projects to provide 8% very low income and 5% extremely low income units or 15% lower income units; ownership projects 30% moderate-income or 15% lower income units; and mixed-use projects at least one-half residential square footage.
  • Site and parking. Did not require parking for buildings without existing onsite parking and allowed new residential or mixed-use structures on undeveloped or parking areas of the same or adjacent parcels, under conditions.
  • Labor standards. Required prevailing wage, apprenticeship, skilled and trained workforce, and health care expenditure standards, certified under penalty of perjury.
  • Local process. Allowed local implementing ordinances, required ministerial approval within specified timeframes absent one, required written documentation of conflicts, and barred standards requiring alteration of the existing building envelope, except as specified.
  • Fees. Exempted projects from impact fees not reasonably related to the change of use and required fees to be roughly proportional to the difference in impacts.
  • Incentive program and CEQA. Authorized local adaptive reuse investment incentive programs from the 2026–27 fiscal year for up to 30 years based on property tax increment, exempted approvals from CEQA, and made provisions operative July 1, 2026.

Paraphrased from the Legislative Counsel’s Digest. Check the bill text before relying on it.

ClaudeGreen text is a summary heading written by Claude to help navigate. It is not statute text; the statute text is in black.

Preamble

SECTION 1. The Legislature finds and declares all of the following:

(a) Converting vacant commercial space into residential housing, through adaptive reuse, could reduce underutilized and vacant buildings that have been decreasing in value, thereby helping to stabilize the commercial real estate market and filling those spaces with more valuable tax-generating uses.

(b) Adaptive reuse projects can increase activity and foot traffic in neighborhoods across the state, which helps support local businesses and enhance the cultural life of cities and towns.

(c) Adaptive reuse projects create new construction jobs and preserve historic structures.

(d) Adaptive reuse projects are more environmentally friendly than new construction by repurposing existing materials, reducing transportation emissions, and preserving embodied carbon.

(e) New housing construction, at all affordability levels, can help to mitigate, and eventually reverse, the statewide housing shortage.

(f) Adaptive reuse projects require construction techniques that justify labor standards that differ from new housing construction.

SEC. 2

Chapter 9 (commencing with Section 51299) is added to Part 1 of Division 1 of Title 5 of the Government Code, to read:

SEC. 3In the navigator:§ 65585changes

Section 65585 of the Government Code is amended to read:

SEC. 3.5In the navigator:§ 65585changes

Section 65585 of the Government Code is amended to read:

SEC. 4

Article 11.5 (commencing with Section 65658) is added to Chapter 3 of Division 1 of Title 7 of the Government Code, to read:

SEC. 5

Section 3.5 of this bill incorporates amendments to Section 65585 of the Government Code proposed by both this bill and Assembly Bill 650. That section of this bill shall only become operative if (1) both bills are enacted and become effective on or before January 1, 2026, (2) each bill amends Section 65585 of the Government Code, and (3) this bill is enacted after Assembly Bill 650, in which case Section 3 of this bill shall not become operative.

SEC. 6. No reimbursement is required by this act pursuant to Section 6 of Article XIII B of the California Constitution because a local agency or school district has the authority to levy service charges, fees, or assessments sufficient to pay for the program or level of service mandated by this act or because costs that may be incurred by a local agency or school district will be incurred because this act creates a new crime or infraction, eliminates a crime or infraction, or changes the penalty for a crime or infraction, within the meaning of Section 17556 of the Government Code, or changes the definition of a crime within the meaning of Section 6 of Article XIII B of the California Constitution.

Source: LegiScan API, chaptered text of AB 507 (2025-2026 Regular Session).

Bill text is the chaptered version from LegiScan (California Legislature); spacing is normalized. Code section text in a bill is the text that bill chaptered, not necessarily the law in effect today. Not legal advice.