SB 1090 · Housing Laws Navigator
Bills · 2025-2026 Regular Session

SB 1090

Planning and zoning: housing development projects: urban lot splits: subdivisions: 2025 Eaton Wildfire: Altadena.Ch. 1006, Stats. 2026 · chaptered 2026-09-30 · In effect (urgency)

In effect, not yet in the Code text. SB 1090 is an urgency statute and took effect when chaptered on 2026-09-30. 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

Temporarily suspended ministerial approval of urban lot split and small subdivision housing applications in Altadena ZIP Codes 91001 and 91003 after the 2025 Eaton Wildfire.

  • Altadena exclusion. Provided, until January 1, 2030, that ministerial approval requirements for housing projects on subdivided lots and related parcel or tentative and final maps do not apply in ZIP Codes 91001 or 91003, except as specified.
  • Application date. Applied to applications for proposed housing developments or maps submitted on or after October 1, 2026.
  • Special statute. Made findings on the need for a special statute for unincorporated Altadena in Los Angeles County.
  • Urgency. Took effect immediately as an urgency statute, with contingent coordination with AB 2601 and SB 1116.

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. It is the intent of the Legislature that:

(a) The provisions of this bill create a moratorium on submitting new townhome development applications under the Starter Home Revitalization Act of 2021 (Chapter 8 (commencing with Section 66499.40) of Division 2 of Title 7 of the Government Code) on sites impacted by the Eaton Fire in the 91001 and 91003 ZIP Codes and only apply prospectively.

(b) The provisions of this bill shall have no force or effect on any application for a Starter Home Revitalization Act of 2021 (Chapter 8 (commencing with Section 66499.40) of Division 2 of Title 7 of the Government Code) development submitted prior to the effective date of the moratorium. The applicants and the sites associated with premoratorium applications are no less entitled to the provisions and privileges of the Starter Home Revitalization Act of 2021 (Chapter 8 (commencing with Section 66499.40) of Division 2 of Title 7 of the Government Code) than any other site in the state that is not located in the 91001 and 91003 ZIP Codes.

SEC. 2In the navigator:§ 65852.28changes

Section 65852.28 of the Government Code is amended to read:

SEC. 2.1In the navigator:§ 65852.28changes

Section 65852.28 of the Government Code is amended to read:

SEC. 2.2In the navigator:§ 65852.28changes

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SEC. 2.3In the navigator:§ 65852.28changes

Section 65852.28 of the Government Code is amended to read:

SEC. 3In the navigator:§ 65852.28changes

Section 65852.28 is added to the Government Code, to read:

SEC. 3.1In the navigator:§ 65852.28changes

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SEC. 3.2In the navigator:§ 65852.28changes

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SEC. 3.3In the navigator:§ 65852.28changes

Section 65852.28 is added to the Government Code, to read:

SEC. 4In the navigator:§ 66499.41changes

Section 66499.41 of the Government Code is amended to read:

SEC. 4.1In the navigator:§ 66499.41changes

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SEC. 5In the navigator:§ 66499.41changes

Section 66499.41 is added to the Government Code, to read:

SEC. 5.1In the navigator:§ 66499.41changes

Section 66499.41 is added to the Government Code, to read:

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Section 66499.41 is added to the Government Code, to read:

SEC. 6

The Legislature finds and declares that a special statute is necessary and that a general statute cannot be made applicable within the meaning of Section 16 of Article IV of the California Constitution in order to address the disparity in protection from predatory development practices following the Los Angeles fires for communities in the unincorporated area known as Altadena in the County of Los Angeles that are excluded from the scope of Executive Order No. N-32-25.

SEC. 7. (a) Sections 2.1 and 3.1 of this bill incorporate amendments to Section 65852.28 of the Government Code proposed by both this bill and Assembly Bill 2601. They shall only become operative if (1) both bills are enacted and become effective on or before January 1, 2027, but this bill becomes operative first, (2) each bill amends Section 65852.28 of the Government Code, (3) Senate Bill 1116 is not enacted or as enacted does not amend that section, and (4) this bill is enacted after Assembly Bill 2601, in which case Section 65852.28 of the Government Code, as amended, repealed, and added by Sections 2 and 3 of this bill, shall remain operative only until the operative date of Assembly Bill 2601, at which time Sections 2.1 and 3.1 of this bill shall become operative, Sections 2 and 3 of this bill shall become inoperative, and Sections 2.2, 2.3, 3.2, and 3.3 of this bill shall not become operative.

(b) Sections 2.2 and 3.2 of this bill incorporate amendments to Section 65852.28 of the Government Code proposed by both this bill and Senate Bill 1116. They shall only become operative if (1) both bills are enacted and become effective on or before January 1, 2027, but this bill becomes operative first, (2) each bill amends Section 65852.28 of the Government Code, (3) Assembly Bill 2601 is not enacted or as enacted does not amend that section, and (4) this bill is enacted after Senate Bill 1116, in which case Section 65852.28 of the Government Code, as amended, repealed, and added by Sections 2 and 3 of this bill, shall remain operative only until the operative date of Senate Bill 1116, at which time Sections 2.2 and 3.2 of this bill shall become operative, Sections 2 and 3 of this bill shall become inoperative, and Sections 2.1, 2.3, 3.1, and 3.3 of this bill shall not become operative.

(c) Sections 2.3 and 3.3 of this bill incorporate amendments to Section 65852.28 of the Government Code proposed by this bill, Assembly Bill 2601, and Senate Bill 1116. They shall only become operative if (1) all three bills are enacted and become effective on or before January 1, 2027, but this bill becomes operative first, (2) all three bills amend Section 65852.28 of the Government Code, and (3) this bill is enacted after Assembly Bill 2601 and Senate Bill 1116, in which case Section 65852.28 of the Government Code, as amended, repealed, and added by Sections 2 and 3 of this bill, shall remain operative only until the operative date of Assembly Bill 2601 and Senate Bill 1116, at which time Sections 2.3 and 3.3 of this bill shall become operative, Sections 2 and 3 of this bill shall become inoperative, and Sections 2.1, 2.2, 3.1, and 3.2 of this bill shall not become operative.

SEC. 8

(a) Sections 4.1 and 5.1 of this bill incorporate amendments to Section 66499.41 of the Government Code proposed by both this bill and Assembly Bill 2601. They shall only become operative if (1) both bills are enacted and become effective on or before January 1, 2027, but this bill becomes operative first, (2) each bill amends Section 66499.41 of the Government Code, (3) Senate Bill 1116 is not enacted or as enacted does not amend that section, and (4) this bill is enacted after Assembly Bill 2601, in which case Section 66499.41 of the Government Code, as amended, repealed, and added by Sections 4 and 5 of this bill, shall remain operative only until the operative date of Assembly Bill 2601, at which time Sections 4.1 and 5.1 of this bill shall become operative, Sections 4 and 5 of this bill shall become inoperative, and Sections 4.2, 4.3, 5.2, and 5.3 of this bill shall not become operative.

(b) Sections 4.2 and 5.2 of this bill incorporate amendments to Section 66499.41 of the Government Code proposed by both this bill and Senate Bill 1116. They shall only become operative if (1) both bills are enacted and become effective on or before January 1, 2027, but this bill becomes operative first, (2) each bill amends Section 66499.41 of the Government Code, (3) Assembly Bill 2601 is not enacted or as enacted does not amend that section, and (4) this bill is enacted after Senate Bill 1116, in which case Section 66499.41 of the Government Code, as amended, repealed, and added by Sections 4 and 5 of this bill, shall remain operative only until the operative date of Senate Bill 1116, at which time Sections 4.2 and 5.2 of this bill shall become operative, Sections 4 and 5 of this bill shall become inoperative, and Sections 4.1, 4.3, 5.1, and 5.3 of this bill shall not become operative.

(c) Sections 4.3 and 5.3 of this bill incorporate amendments to Section 66499.41 of the Government Code proposed by this bill, Assembly Bill 2601, and Senate Bill 1116. They shall only become operative if (1) all three bills are enacted and become effective on or before January 1, 2027, but this bill becomes operative first, (2) all three bills amend Section 66499.41 of the Government Code, and (3) this bill is enacted after Assembly Bill 2601 and Senate Bill 1116, in which case Section 66499.41 of the Government Code, as amended, repealed, and added by Sections 4 and 5 of this bill, shall remain operative only until the operative date of Assembly Bill 2601 and Senate Bill 1116, at which time Sections 4.3 and 5.3 of this bill shall become operative, Sections 4 and 5 of this bill shall become inoperative, and Sections 4.1, 4.2, 5.1, and 5.2 of this bill shall not become operative.

SEC. 9

This act is an urgency statute necessary for the immediate preservation of the public peace, health, or safety within the meaning of Article IV of the California Constitution and shall go into immediate effect. The facts constituting the necessity are:

To address the disparity in protection from predatory development practices following the January 2025 Eaton Fire in the unincorporated area known as Altadena, which, despite being devastated by the fire, is not covered by the exemption provided to very high fire severity areas in the statutes enacted by Chapter 783 of the Statutes of 2023 (Senate Bill 684 of the 2023–24 Regular Session), it is necessary that this act take effect immediately.

Source: LegiScan API, chaptered text of SB 1090 (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.