ADU Incentives Pilot Program -
San Francisco District 4 (Sunset)

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ADU Incentives Pilot Program

San Francisco District 4 Supervisor Gordon Mar, the San Francisco Planning Department, and ASIAN, Inc. have partnered to carry out an ADU Incentives Pilot Program in the Sunset District. Accessory Dwelling Units (ADUs), also called secondary units, in‑law units, or cottages, are units added to existing residential buildings. The goal of this program is to assess the potential for ADUs to serve as a stable, affordable source of housing in San Francisco. District 4 property owners interested in adding an ADU are encouraged to apply for technical assistance through this pilot program. Qualified applicants will receive a professional assessment of the potential to add an ADU on their property, at no cost.

How will the Pilot Program work?

ADU Timeline

Am I Eligible to Take Part in this Pilot Project?

If you are a homeowner in District 4, and are interested in constructing an ADU on your property, please apply. Not sure if your property is located in District 4? Take a look at this map or enter your address in the Property Information Map and check which Supervisor District your property is in. Due to limited funding, not all applicants will be selected for the pilot program. However, data collected from this pilot program will be used to design a citywide, comprehensive ADU incentives program in the near future.

How do I Apply to Take Part in the ADU Incentives Pilot Program?

Please fill out the application here: Please note that not all applicants will be eligible to participate, and approval is not guaranteed. Only a certain number of applicants will be selected, but all District 4 households are encouraged to apply. Candidates who are approved will receive technical assistance and the planning tools for pre‑construction only.

For other questions

For general information about ADUs, visit
For additional information related to this ADU technical assistance pilot project, contact ASIAN, Inc. at


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