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About Us

Design and build your backyard home the smart way. At Cottage, we’ve reimagined the experience of building a custom ADU to save you time and money. Get started today by booking a free consultation call!

Services Provided

Accessory Dwelling Units (ADUs), Modular Home Construction, Sustainable Design, Tiny House Construction

Areas Served

San Francisco, Greater Los Angeles Area, San Fernando Valley, San Diego Area, North County San Diego, SF Bay Area - Peninsula, SF Bay Area - East Bay, SF Bay Area - South Bay, SF Bay Area - North Bay

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Business Details

Business Name

Cottage ADU

Phone Number

(415) 237-3966


Greater San Francisco Bay Area, CA 94103

Typical Job Cost

$100,000 - 400,000

A-to-Z ADU design, permit, and construction cost varies depending on project size and complexity. Contact us today or visit to learn more about how we can build your no-hassle, customized, stick-built ADU from start to finish!


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