City Of San Mateo ADU Permit Checklist
| Last Updated: 25 Jul 2020
To successfully build your ADU, complying with the city's mandated requirements is a must.

Here's our 2020 guide for Californian homeowners who are looking to build their ADUs. San Mateo City has prepared an ADU submittal checklist for homeowners who would want to have a minor to major changes to their primary dwellings. Make sure to communicate with your contractor and never skip any legal requirements.