SB 457 · Housing Laws Navigator
Bills · 2025-2026 Regular Session

SB 457

Housing element compliance: committed assistance: in-kind services: realistic capacity formula.Ch. 802, Stats. 2026 · chaptered 2026-09-29 · Chaptered, not yet in effect

Not yet in effect. SB 457 was chaptered 2026-09-29 and takes effect January 1, 2027. The sections it amends are shown in this navigator as they read on the saved leginfo pages, without this bill’s changes; each section’s History tab can show it as this bill leaves it. Some provisions may have their own operative dates; check the bill text. Not legal advice.

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

Required HCD to adopt realistic capacity formulas and tools for housing element sites by July 1, 2028, and added site unit-count and in-kind services provisions.

  • Capacity formulas. Required HCD, by July 1, 2028, to promulgate or approve formulas and user tools to determine the realistic capacity of inventory sites and other specified information, and allowed HCD to hire economists and data scientists.
  • Reliance allowed. Allowed cities and counties to rely on the HCD formula for sites analysis and exempted its use from judicial review, except as specified.
  • Unit counts. Required the sites inventory to state the units allowed on each site at adoption and after rezoning.
  • In-kind services. Defined in-kind services for committed assistance programs used to substitute for scheduled housing units.

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) Ensuring that each city and county accommodates its fair share of regionally needed housing is a matter of supreme statewide importance.

(b) The process for writing, reviewing, and implementing housing elements is time consuming and costly for local and state officials due to an accumulation of detailed statutory requirements and demanding judicial decisions.

(c) Current law presupposes that local and state officials can figure out which sites are likely to be developed during the planning period, yet local governments do not own most developable sites and public officials are often unable to acquire credible information about each site owner’s intentions. Moreover, site owners and their intentions may change over the eight-year planning period.

(d) Without knowing which sites will be developed during the planning period, it is possible to statistically estimate the average probability of development of sites of a defined class using historical data on site characteristics, regulations, and prices. Several cities, including the Cities of Los Angeles and San Francisco, commissioned statistical models as guides for their sixth cycle housing elements.

(e) It is the Legislature’s intent to simplify the writing and review of seventh housing elements by authorizing the Department of Housing and Community Development to issue safe harbor formulas and associated user interfaces or other tools, for assessing the capacity of sites under the regulatory status quo and under local governments’ rezoning and constraint removal programs. These formulas and associated user interfaces or tools may be developed by the department or by third-party researchers with relevant economic and statistical expertise.

(f) It is the Legislature’s intent that if a local government elects to use a formula approved by the Department of Housing and Community Development to estimate site capacity and properly applies it, the local government will be assured that it will be found compliant with the corresponding statutory requirements.

(g) It is the intent of the Legislature that nothing in this act be construed to authorize or impose a new requirement that sites be subject to a local ordinance requiring or providing bonuses for deed-restricted affordable housing in order for the site to count toward a city’s or county’s regional housing need allocation (RNHA) below the “above moderate income” level.

SEC. 2In the navigator:§ 65583changes

Section 65583 of the Government Code is amended to read:

SEC. 3

Section 65583.01 is added to the Government Code, to read:

SEC. 4In the navigator:§ 65583.1changes

Section 65583.1 of the Government Code, as amended by Section 5 of Chapter 56 of the Statutes of 2026, is amended to read:

SEC. 5In the navigator:§ 65583.2changes

Section 65583.2 of the Government Code, as amended by Section 6.5 of Chapter 282 of the Statutes of 2024, is amended to read:

SEC. 6In the navigator:§ 65583.2changes

Section 65583.2 of the Government Code, as amended by Section 7.5 of Chapter 282 of the Statutes of 2024, is amended to read:

Source: LegiScan API, chaptered text of SB 457 (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.