ADUs
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ADU Resource Center
The ADU Resource Center supports jurisdictions in meeting their ADU production and equity goals. The Center serves all San Mateo County residents, although some services are limited to residents of jurisdictions that fund the Center. You can see the full archive of pre-launch materials here.
Important Links
- Casita Coalition – Nonprofit advocating for more permissive ADU laws as well as a resource for pro-ADU practices
- Napa Sonoma ADU Center – Nonprofit supporting homeowners to build ADUs in Napa and Sonoma counties
- EPA Can Do – Nonprofit increasing the number of affordable ADUs in East Palo Alto
- City Systems – Nonprofit affiliated with Stanford developing plug-in garage ADU solutions
- Free ADU Plans – HEART offers several free ADU plans
- ADU Accelerator lists ADU tools and services developed by Community Planning Collaborative
All Related Documents
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Title | Link | Summary | Date | File Purpose | File Type |
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1.30.25 New Housing Laws Training Recording | Recording from the January 2025 Planning Commissioners Training on New Housing Laws featuring a deep dive into HAA/Builder’s Remedy and AB 1893, new ADU laws (SB 1211, AB 2533), and SB 9 and SB 450. Please note that this recording has been compressed, and the final five minute discussion has been cut out due to audio … | January 30, 2025 | Meeting Materials, Presentation | mp4 | |
HCD ADU Handbook Update 2025 | HCD’s ADU Handbook, updated January … | January 30, 2025 | Handout/Flyer, Meeting Materials, Toolkit | ||
1.30.25 New Laws Training Slides | Slides from the January 2025 Planning Commissioners Training on New Housing Laws featuring a deep dive into HAA/Builder’s Remedy and AB 1893, new ADU laws (SB 1211, AB 2533), and SB 9 and SB … | January 30, 2025 | Meeting Materials, Presentation | ||
Annual ADU Affordability Monitoring | ABAG is coordinating an opt-in survey for jurisdictions that want to monitor ADU … | July 2, 2024 | www | ||
Memorandum Funding an ADU Resource Center | Memo that describes the ADU Resource Center and jurisdiction funding … | February 23, 2024 | Memo | ||
ADU Amnesty Best Practices Memo | Guidance memo for jurisdictions considering implementing ADU Amnesty programs or complying with SB 897 (developed for OCCOG by Community Planning … | November 14, 2023 | Memo | docx | |
ADU Model Ordinance | Sample ADU Accessory Dwelling Unit Ordinance (developed for OCCOG by Goldfarb and … | October 4, 2023 | Model Ordinance | docx | |
ADU Affordability Best Practices Memo | Memo on best practices (developed for OCCOG by Community Planning … | September 22, 2023 | Memo | docx | |
HCD ADU Counts According to APRs | HCD data on ADU counts in each San Mateo County … | March 1, 2022 | Data/Research | xlsx | |
DRAFT ADU Affordability Report | ABAG memo on how to count ADUs for Housing Elements and Annual Progress Reports (APRs). It is the basis for the 30/30/30/10 affordability … | September 8, 2021 | Staff Report | ||
UC Berkeley Affordability Study – Implementing the Backyard Revolution | UC Berkeley conducted this study in 2021 to determine ADU affordability. Authors: Karen Chapple, Ph.D., Dori Ganetsos, and Emmanuel … | April 22, 2021 | Data/Research | ||
Marin County ADU Amnesty Prog Summary | Summary of Marin’s ADU Amnesty Program prepared for the 11/17/2016 TAC 21 Elements … | March 9, 2017 | Meeting Materials | ||
Ventura ADU Amnesty Prog Summary | Summary of Venturas’s ADU Amnesty Program prepared for the 11/17/2016 TAC 21 Elements … | November 17, 2016 | Meeting Materials |