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Choose from six standard designs, fits almost all your needs.

Designed to fit in 45’+ wide lots, S1 is
designed to suit all your backyard home needs.

Same great product, delivered faster, simpler and at a lower price.

Need something ASAP? Get ONE in as little as 6 months.

ONE designs fit most properties in Bay Area.


Book a Free Site Visit and see how ONE fits in your backyard in as little as 1 day.

ONE is pre-engineered, eliminating the majority of your engineering, design, and permit preparation costs. These savings are passed on directly to you.

Designed in the Bay Area for Bay Area.

We have designed over 100 unique layouts for homeowners in the Bay Area with our Custom product. ONE is a culmination of this experience. We’ve paired thoughtful design for the Bay Area with ADUONE's uncompromising quality.

Create Your First Project

Start adding your projects to your portfolio. Click on "Manage Projects" to get started





Sunnyvale, 94085, CA


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© 2024 by  ADU ONE

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