Tools

These tools can help you to find out more about your property.

For homeowners in incorporated areas of Marin County

  • Go to Marin County’s Search Assessor Records & Maps page and type in your parcel number (you can find it on your property tax bill). Click on the parcel number to see more information, and from there you can “View Assessor Map” to see a parcel map which should include the lot line measurements.

 

For homeowners in unincorporated Marin County

  • Go to the County’s site and type in your address to see your zoning code and parcel number.  The same page will tell you if you are in a “Community Plan” area with special zoning requirements, such as Bolinas or Tamalpais.
  • To confirm your lot measurements, use the parcel number to look up assessor records here. Click on the parcel number to see more information, and from there you can “View Assessor Map” to see a parcel map which should include the lot line measurements.

 

For homeowners in unincorporated Sonoma County

  • Go to the County’s site and select “Lookup Property Information”. Enter your parcel number (found on property tax bills) or your address. Once you search, the address, parcel number, and owner should be displayed. Click on the parcel number to see the rest of the property information. The zoning details are at the very bottom, and are quite cryptic. A partial explanation can be found here at the bottom of the webpage. 

 

These tools can help you to understand the potential scope of an accessory dwelling unit project.

Project Tasks – A list of homeowner, architect, and  contractor tasks that might apply to your accessory dwelling unit project

Construction Tasks – A breakdown of construction tasks for cottage homes, conversion and carve-out units, and Jr. units