• second unit home for rental income

    A little house brings
    great stability.

Second Unit Resources Center

The Second Unit Center is a program of the County of San Mateo’s Home for All initiative providing information and tools to make it easier for homeowners to build second units, to help increase the housing supply in the County.

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Your backyard solution.

Second Units are a great option for those interested in affordably housing a friend or family member, aging in place, creating a new income source, and helping tackle our regional housing shortage.

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What you need to know.

Are you interested in building a second unit? Identify next steps, including how to find the right kind of second unit for your situation, how to secure a building permit, and how to find your construction team.

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Where are you in the process?


Where are you in the process?

© San Mateo County. All rights reserved.
Photo credit: Home page hero by Josh To, https://soup.is/blocks; home page Getting Started section photo by New Avenue Homes.

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