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Unincorporated Alameda County

A trusted partner to help support  motivated homeowners

Alameda County and Hello Housing have partnered to bring HelloADU, a program which offers free feasibility and project management support to homeowners who are motivated to build an ADU or a JADU on their property.  Our team of design and construction experts are ready to help you figure out what is possible on your property, help you identify and vet good professionals to work with and will help support you in the management of your ADU team throughout the entire development process.

"Having support each step of the way made all of the difference in our project."  We would still be stuck if it weren't for the help from Hello Housing." Mike - Homeowner

Here are the basics:

  • Your home must be located in unincorporated Alameda County (Ashland, Castlewood, Castro Valley, Cherryland, Fairview, Happy Valley, Hillcrest Knolls, San Lorenzo, and Sunol as well as unincorporated areas of other cities such as Hayward, East Pleasanton and South Livermore).

  • You must own and live in your home.

  • You must have access to financial resources to design and build your unit.

  • You must enter into a written lease with your tenant(s), who can be friends, family members, or someone new to you.

  • The rent for your newly constructed unit is subject to reasonable rent caps for a 3-year period.

  • You must take a landlord training course prior to leasing your unit.


Special Thanks to Our Program Sponsor!

To learn more about program eligibility and to get answers to common questions please read through our Frequently Asked Questions

HelloADU program services are an innovative collaboration between nonprofit Hello Housing, philanthropy, major employers, local government, and homeowners like you. It is a natural next step for Alameda County seeking to support homeowners with the support needed in navigating a complex process.

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