Accelerating the ADU Movement in California

Everything you need to build an Accessory Dwelling Unit in California. Check your property to learn your zoning requirements, estimate costs, and design your ADU. Then, apply for permits and meet local professionals who can help from start to finish on the ADU Marketplace.

Check your local ADU requirements

Planning to convert your garage or use your backyard to add an in-law unit? The State of California has passed new legislation (SB 1069 and AB 2299) which gives homeowners the right to build Accessory Dwelling Units (ADUs) on most single family properties, effectively doubling the housing potential of these residences.

Why build an ADU?

Building a new ADU or converting existing space can be a smart investment for many homeowners in California. Adding living space, appreciating property value, generating rental income and helping solve the housing crunch, one unit at a time are just a few reasons that building an ADU can be an excellent move. Use the city search bar above to learn about the ADU process in your city.

  • Flexible space for your family & friends
  • Appreciate your property's value
  • Generate extra rental income
  • Create new housing one yard at a time


The unit is completely separate from the primary home. Great solution for maintaining privacy for an rental unit.


The unit is attached to the primary home. Flexible solution to expand the size of your residence and add a second unit.

Interior Conversion

Existing space is converted into seperate living space. Commonly called Junior ADUs, some can share amenities with the primary home.

Structure Conversion

Transform an existing secondary structure. Building on top of a garage is an option in certain areas too.

What does Hausable help you with?

  • Verifying feasibility for your property with the city planning office.
  • Designing an ADU that will fit your property and your needs.
  • Drafting required construction blueprints to permit your project.
  • Bidding your project to local contractors to find the best fit.

We provide practical design & drafting services for homeowners and professionals that reduce costs and timeline for ADU projects. Our expert drafting team uses common-sense design, software tools and proven construction methods to create customized ADU designs that fit well with our customer's preferences, their property and comply with all state and local codes.

Check your property to learn about the ADU requirements in your city and get price quotes to get started with ADU Services today!

First, Get Free Property Zoning Check for ADU

From there, you can learn more about how to get ADU designs for your property, get contractor estimates, and get help moving your project forward. Check your property and get started!