The Best Pre-Approved ADUs

Maximize your home’s potential with Acton ADU’s collection of pre-approved Accessory Dwelling Units! Bypass the usual complexities of ADU regulations and permitting with our ready-to-go designs, which, as a result of meticulous planning and understanding of Bay Area codes, guarantee a seamless permitting journey.

Why Choose Pre-Approved ADUs?

Unlock the fastest route to expand your living space:

  • Speed: Dive straight into the build phase, skipping the prolonged approval process.
  • Reliability: Your ADU conforms to local building codes and regulations.
  • Cost-Efficiency: Less downtime, more savings.
  • Peace of Mind: Say goodbye to the uncertainty of the approval phase.


Have questions about what it takes to build your dream ADU? Ready to start your ADU project? Our experts are here to assist you every step of the way. Feel free to reach out with any questions or to schedule a consultation. Let’s bring your ADU vision to life together.

Experience the Acton ADU Edge

Known for our trusted expertise and a commitment to excellence. Learn more about why Acton ADU is the right choice for you:

Diverse Options

A curated range of ADU designs ready for immediate build.

Seasoned Insight

Navigate local laws with ease, ensuring seamless compliance.

Tailored Touch

Blend pre-approval with customization to cater to your unique requirements.

Quality, Always

Every pre-approved design echoes our high construction and aesthetic standards.

The Most Pre-Approved ADU Designs in San Jose

We pride ourselves on having the most comprehensive list of pre-approved ADU design options in San Jose, presenting you with a catalog of designs that have already secured a thumbs-up from city authorities.

By offering a broad spectrum of city-pre-approved designs, we pave the way for faster building timelines, reduced costs, and less stress. Whether you reside in San Jose or another Bay Area location, our library of pre-approved plans is your first step towards creating the perfect ADU for your needs.


Hear It From Our Satisfied Homeowners

We hired Acton Construction to expand our 1905 house to include an extra bathroom and laundry area. Acton presented a complete and detailed proposal with options and budget, allowing for a flexible array of choices as work proceeded. The work was accomplished as proposed, on time and within budget, and included design, permits, and historical review. The addition is perfectly matched to the original architecture while complying with current building codes. Workmanship was excellent. Especially impressive was the daily log of work accomplished and plans for the next day, kept on the job site for our review.
Roger Dahlberg
We worked with Acton on a complete remodeling of our ranch-style home that was originally built in the early 60s. This was a big complicated project, but our experience with Acton was fantastic from beginning to end. Stan, Zac, Sherwood, and the rest of the Acton gang are just great. Very high integrity with a tremendous attention to quality and detail. They care, about our home, our family, and about doing a really great job. A re-modelling project as extensive as the one we did is stressful and hard, and will always involve some conflict – it's never going to be all puppies and rainbows. Whenever we had problems with the project, the Acton gang always responded quickly, with a lot of detail and information. Any problem was resolved quickly. They worked very well with our architect too.
Alan Eagle
Acton construction built an ADU in our backyard and did a wonderful job! We are extremely happy with the quality and design of our little house. The whole team did a great job especially our lead builder, Rick, who was a great listener to all of our needs and would find solutions to any problems we ran into along the way. Everyone was responsive, on time, and kind and made us feel very confident that the project would be completed to our satisfaction.
Sarah Clayton
We have been working with Acton for a long time now and it’s been great one of the project managers we’ve worked with is Ivan and he’s great gives us detailed instructions and whenever we have a question we call him and always answers all questions.
Juan Reyes
t was a great experience working with the Acton ADU team from conception to completion. The professionalism and care they put into the project from the design phase through the construction phase was outstanding. They took care of all of the permits and inspections and kept us up to date at every turn. Chris was fantastic during the project and gave us updated pictures daily and communicated at every step of the way. The quality of work and final product far exceeded our expectations. I would absolutely recommend Acton ADU.
Samuel Quicke