SB 457 California Senate · 2025-2026 Regular Session

Housing element compliance: committed assistance: in-kind services: realistic capacity formula.

Summary
The Planning and Zoning Law requires a city or county to adopt a comprehensive, long-term general plan that includes various mandatory elements, including a housing element. Existing law requires the housing element to include, among other things, an inventory of land suitable and available for residential development, an analysis of the relationship of zoning and public facilities and services to these sites, and an analysis of the relationship of the sites identified in the land inventory to the jurisdiction's duty to affirmatively further fair housing. Existing law requires a city or county, based on that inventory of land, to determine whether each site in the inventory can accommodate the development of some portion of its share of the regional housing need by income level during the planning period, as provided. Existing law requires the inventory of land to include, among other things, a description of the existing use of the property for nonvacant sites. For the nonvacant sites, existing law requires the city or county to specify the additional development potential for each site within the planning period. Existing law requires a city or county to rezone sites according to a specified program if the inventory of sites suitable and available for residential development does not identify adequate sites to accommodate the need for groups of all household income levels. This bill would require, on or before July 1, 2028, the Department of Housing and Community Development to promulgate or approve one or more formulas and associated user interfaces or other tools that allow for the determination of specified information, including, among other things, the realistic capacity of housing element inventory sites, as specified. The bill would authorize the above-described analysis and determinations by a city or county related to sites in the inventory of land suitable and available for residential development to rely on the formula promulgated or approved by the department. The bill would authorize the department to hire economists and data scientists for the purpose of promulgating the formulas and associated user interfaces or other tools. This bill would require the inventory of land suitable and available for residential development to specify the number of units allowed to be built on each site at the time of the housing element's adoption, and the number that will be allowed after rezoning, as specified, to accommodate the city's or county's share of regional housing need. This bill would exempt the use by a city or county of any adopted formula, associated user interface, or tool promulgated or approved by the department for these purposes from judicial review, except as specified. Existing law also requires that the housing element, among other things, sets forth a schedule of actions during the planning period that the local government is undertaking or intends to undertake to implement the policies and achieve the goals of the housing element, as provided. Existing law authorizes the Department of Housing and Community Development to allow a city or county to substitute the provision of units pursuant to this schedule of actions if the community includes in its housing element a program committing the local government to provide specified units that will be made available through the provision of committed assistance to lower income households at affordable housing costs or rents, as defined. Existing law requires a unit to meet specified requirements to qualify for inclusion in the program. Existing law defines "committed assistance" for these purposes to mean that the city or county enters into a legally enforceable agreement during a specified time period that obligates sufficient available funds or other in-kind services to provide the assistance necessary to make the identified units affordable and that requires that the units be made available for occupancy within 2 years of the execution of the agreement. This bill would define "in-kind services" for these purposes.
Bill status passed both 4 of 5 stages cleared
Introduction
Feb 2025
Committee Review
Aug 2026
Senate Passage
Jan 2026
Assembly Passage
Aug 2026
Governor
Introduced Feb 19, 2025 Last action Aug 30, 2026
Maddy AI version diff · 9 comparisons

What changed between versions

08/13/26 - Amended Assembly 08/20/26 - Amended Assembly · 5 edits · Aug 20, 2026
MODERATE
SB 457 was amended to push back the deadline for DHCD to promulgate housing site capacity formulas from January 1, 2028 to July 1, 2028, and to remove a key safe harbor provision from the operative statute that had explicitly guaranteed local governments would be found compliant if they properly used an approved formula. The amendment also added 'one or more' before 'formulas' for clarity and expanded the legislative findings to describe the housing element process as 'time consuming and costly.'
TIMELINE

The deadline for the Department of Housing and Community Development to promulgate or approve formulas and tools for determining realistic capacity of housing element inventory sites was extended from January 1, 2028 to July 1, 2028, giving the department an additional six months.

ENFORCEMENT

Removed the provision in Section 65583(a)(3)(B) that stated a city or county 'has satisfied the requirements' of the site capacity analysis if it uses the applicable formula approved by the department, except in cases of misapplication or reliance on faulty data. This removed an explicit statutory safe harbor from the operative text, though a similar intent remains in the legislative findings.

TECHNICAL

Added 'one or more' before 'formulas' in the requirement for DHCD to promulgate or approve formulas and associated user interfaces or other tools, clarifying that multiple formulas may be issued.

SCOPE

Expanded the legislative finding about burden on local and state officials from simply 'very burdensome' to 'very burdensome is time consuming and costly,' adding explicit recognition of cost as a factor.

Removed from the bill summary the description of existing law requiring programs to accommodate 100% of the need for housing for specified lower income households on sites zoned for owner-occupied and rental multifamily residential use with specified minimum density and development standards.

Floor votes · Senate Jan 26, 2026 · Assembly Aug 24, 2026

How they voted

390
Passed · 1 other
Total votes 40
Jan 26, 2026
D Democratic30
29 Yea 1
96% Yea
R Republican10
10 Yea
100% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
34
Key actions
18
Committee
8
Amendments
13
Aug 30, 2026
Upper · Passed
Assembly amendments concurred in. (Ayes 30. Noes 9.) Ordered to engrossing and enrolling.
upper
Aug 27, 2026
Upper · Passed
From committee: That the Assembly amendments be concurred in. (Ayes 8. Noes 2.)
upper
Aug 25, 2026
Upper · Passed
From committee: Be re-referred to Com. on HOUSING pursuant to Senate Rule 29.10(d). (Ayes 5. Noes 0.) Re-referred to Com. on HOUSING.
upper
Aug 25, 2026
Committee
Re-referred to Com. on RLS. pursuant to Senate Rule 29.10(d).
upper
Aug 24, 2026
Introduced
In Senate. Concurrence in Assembly amendments pending.
upper
Aug 24, 2026
Lower · Passed
Read third time. Passed. Ordered to the Senate.
lower
Aug 20, 2026
Lower · Passed
Read third time and amended.
lower
Aug 13, 2026
Lower · Passed
Read second time and amended. Ordered to second reading.
lower
Aug 13, 2026
Lower · Passed
From committee: Do pass as amended. (Ayes 11. Noes 2.) (August 13).
lower
Jul 2, 2026
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 1.) (July 1). Re-referred to Com. on APPR.
lower
Jun 11, 2026
Lower · Passed
Read second time and amended. Re-referred to Com. on L. GOV.
lower
Jun 10, 2026
Lower · Passed
From committee: Do pass as amended and re-refer to Com. on L. GOV. (Ayes 10. Noes 1.) (June 10).
lower
May 20, 2026
Lower · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on H. & C.D.
lower
May 18, 2026
Committee
Referred to Com. on H. & C.D.
lower
Jan 26, 2026
Upper · Passed
Read third time. Passed. (Ayes 39. Noes 0. Page 3281.) Ordered to the Assembly.
upper
Jan 20, 2026
Upper · Passed
From committee: Be ordered to second reading pursuant to Senate Rule 28.8.
upper
Jan 8, 2026
Upper · Passed
Read second time and amended. Re-referred to Com. on APPR.
upper
Jan 7, 2026
Upper · Passed
From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 10. Noes 0. Page 3184.) (January 6).
upper
Jan 5, 2026
Upper · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on HOUSING.
upper
Apr 30, 2025
Committee
April 29 set for first hearing. Failed passage in committee. (Ayes 1. Noes 2. Page 936.) Reconsideration granted.
upper
Apr 21, 2025
Upper · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on HOUSING.
upper
Mar 24, 2025
Upper · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on HOUSING.
upper
Feb 26, 2025
Committee
Referred to Com. on HOUSING.
upper
Feb 19, 2025
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Josh Becker
Josh Becker
DDemocratic
CA
13