ADU Marketplace

The leading ADU Marketplace in California. Join as a homeowner or contractor to get everything you need to start your ADU project on a single, easy-to-use platform.

Check your property to get everything you need to start your Accessory Dwelling Unit (ADU) project on a single, easy-to-use platform. Find contractors in your area who can visit your site and provide estimates your ADU design.

  • Get started with pay as you go ADU Feasibility, Designs & Permitting services.
  • Post your designs to the ADU Marketplace to find the right professionals for your project.
  • Move your ADU project forward faster and with lower costs than the typical process.

  • Lookup Local Contractors to Get Estimates for Your ADU Project

    Lookup By License Number

    Lookup By Contractor Name

    * Use our Contractor Lookup tool to find contractors individually. A drafted and verified ADU design is required for your project prior to requesting project estimates from contractors through the ADU Marketplace. Use paid ADU Services to access citywide contractor search for your ADU project once your project is ready. (This saves everyone's time.)

    Move Your Project Forward in the Meantime

    Enter your address below to learn more about your property ADU requirements and move your project forward while you look for contractors.

    Enter your property address to get started

    Street address
    State Zip code

    Our Process

    We provide tools and resources that help you move your ADU project forward at any stage. Use ADU Services to expedite the feasibility, design and permitting process for your project. Then, post your ADU designs to the ADU Marketplace to find the right contractor to build your project.


    Check your property to learn the general requirements to build an ADU on your site.


    Get started faster with pay as you go for ADU fesibility, design and permitting services.


    Post your ADU designs to The ADU Marketplace to get on-site contractor estimates for your project.

    What type of ADU should you build?

    Use ADU Services to decide what type of ADU works best for your property and your needs.


    Most popular are detached ADUs in the backyards, think of granny flats, in-law units. Attached ADUs and seperate unit additions are also included in this category.


    Most homes are able to convert existing space of some sort into an ADU, be it a garage, an extra bedroom, or a basement. Some cities also allow Junior ADUs, so check your city to learn more.


    If your property already has an ADU of some sort you should consider updating it to code so it can be permitted. This will allow the unit to be rented out or sold for it's full potential market value.

    Check Your Property to Get Started

    Check your property to get price quotes for ADU Services. Get started with feasibility, design and permitting and then post your project to the ADU Marketplace.

    Street address
    State Zip code