Planning and zoning: housing development projects: urban lot splits: subdivisions: 2025 Eaton Wildfire: Altadena

The law removes a fast-track state pathway for new townhome-style subdivisions and related housing projects in ZIP Codes 91001 and 91003 through 2029. It preserves the pathway for qualifying applications already submitted and for permanently affordable projects led by specified nonprofit or community land-trust entities.

What the law does ​

• Bars new applications after October 1, 2026, in ZIP Codes 91001 and 91003 from using the state’s ministerial approval process for qualifying housing projects and subdivisions.
• Protects projects with development or preliminary applications submitted before October 1, 2026, if applicants meet deadlines to file complete materials and cure deficiencies.
• Exempts 100% affordable projects with long-term deed restrictions when developed by eligible community land trusts or nonprofit housing organizations.
• Ends the Altadena-specific restriction on January 1, 2030.

Who it affects ​

• Property owners and developers seeking streamlined approval for eligible small housing projects in the two ZIP Codes.
• Local agencies processing housing-project and subdivision applications in Altadena.
• Community land trusts and qualifying nonprofit affordable-housing developers.

Context ​

The Legislature enacted the urgent, Altadena-specific measure following the January 2025 Eaton Fire.