Jurisdiction Resources

State ADU Standards

• Ordinance Update Toolkit (July 2025): Overview of HCD’s Ordinance review process, latest state standards, statutory numbering and other information to assist jurisdictions in updating their ADU Ordinances 
• Latest ADU Rules (February 2025): Comprehensive overview of ADU standards and rules in effect as of 2025, including FAQs
• Latest ADU Rules Training (February 2025): Staff training on the ADU standards and rules in effect as of 2025
• HCD Ordinance Review Database (July 2025): Database of all comments that HCD has made in its 2025 ADU Ordinance Review Letters; this database allows you to browse HCD’s comments by topic and see the issues most commonly cited by HCD in its Ordinance reviews

Feasibility Consult Information

• Marketing Materials for Feasibility Consults (June 2025): The Resource Center provides free Feasibility Consults to residents of all member jurisdictions

Pre-approved Plans (AB 1332)  

• AB 1332 Best Practices & FAQs (December 2024): Best practices, FAQs and compilation of resources for implementing a pre-approved plans program in compliance with AB 1332
• ADU Accelerator Plans Gallery: All Resource Center member jurisdictions can get free access to the ADU Accelerator’s Plans Gallery, which can help you comply with AB 1332 requirements, for the duration of your membership with the Resource Center 

Legalization & Unpermitted Units (AB 2533)

• Unpermitted ADU Permit Information Checklist from ABAG (July 2025): Sample handout that provides guidance for property owners who want to obtain permits for unpermitted ADUs in compliance with AB 2533 
• Amnesty & Legalization Best Practices (November 2024): Local amnesty program examples, overview of AB 2533 and other amnesty resources   
• Public information samples: See how Larkspur and Mill Valley have integrated the public information requirements outlined in AB 2533 on their ADU web pages 

Multifamily ADUs (SB 1211)

• Multifamily ADU Overview (May 2025): Overview of the latest standards and rules around multifamily ADUs, in compliance with SB 1211
• Multifamily ADU Training (May 2025): Recording of Multifamily ADUs training conducted by the ADU Resource Center in May 

Affordability Monitoring

• ADU Affordability Survey Tool (updated March 2025): Information and documents related to the RHTA online affordability survey developed to help jurisdictions meet ADU monitoring requirements made in their Housing Elements

Condoization (AB 1033) 

• Memo on Implementing AB 1033 (2024): Memo from Casita Coalition on how to implement ADU condominium law  
• Condoization Overview (2025): Review of new ADU condoization state law and case studies as part of ABAG’s ADU Working Group
• San Jose’s ADU Condo Conversions Web Page: San Jose’s public information regarding ADU condo conversions (San Jose is the first jurisdiction to pass an ADU condoization ordinance)

Public Information 

• ABAG’s Public Information Resources (July 2025): Collection of public information handouts and templates that jurisdiction staff can use to help residents interested in ADUs 
• ADU How-To Permit Guide: Comprehensive How-To permit guide for residents of the City of Napa

Best Practices

• Campbell’s Express Plan Check: Campbell’s fast-track process designed for quick approval of ADU permits within a week 
• HIP Housing’s Home Sharing Program: HIP Housing’s Home Sharing Program helps match individuals seeking housing with people who have an ADU to rent