Welcome. On this page, you can either navigate through floorplans, virtual tour, steps & timeline to completion, and pricing, or you can jump straight to pricing now.

We would love to give you an estimate right here on the site, but we do need to understand a few things first, so please click to start pricing your ADU.


Accessory Dwelling Units (ADUs) have been known by many names: granny flats, in-law units, backyard cottages, secondary units and more. No matter what you call them, ADUs are an innovative, affordable, and effective option for adding much-needed housing in California. HCD is the state’s leader on local ADU ordinances, which — while optional — have grown exponentially in number as more cities, counties, and homeowners become interested in ADUs as one solution to increasing the supply of affordable housing.

ADU Floor Plans

ADU Variation Floor Plans (coming soon)


Take a wander through our two bedroom model

Pricing your ADU

Please provide an overview of your needs in the form below so we can prepare a price analysis for you. From there, we can meet to discuss finishes and other options but to start we need to understand where you would like your ADU to live so we can make sure setbacks and other permitting is possible. 

    —A detached ADU—A garage conversion ADU—An addition to the main house ADU

    Homeowners who want to participate in Napa County's ADU loan program can email 
    or call 707-259-8150. Napa County will add them to the interest list, and then get back in touch when the program goes live with application instructions.

    Links to local regulatory guidelines for ADUs

    City of Santa Rosa Sonoma CountyHealdsburgSebastopol | Napa