California's Premier ADU Builder

California's Premier ADU Builder

Nestadu designs, permits, and builds beautiful, high-quality ADUs for all budgets, backyards, tastes, and timelines.

Custom ADUs

Select from one of our nine signature site-built ADU styles or create a custom design with our team.

Traditional

Starting from $400/sqft      8-10 Month timeline

Farmhouse

Starting from $500/sqft      8-10 Month timeline

Spanish

Starting from $500/sqft      8-10 Month timeline

Modern

Starting from $600/sqft      8-10 Month timeline

ADU Floor Plans

Select from one of our many pre-designed floor plans or work with our design team to craft one of your own.
ADU Floor Plan

Prefab ADUs

Elegant, customizable designs, expertly constructed and delivered fully assembled to your backyard.

Nest

Starting from $115,000       Studio, 1 Bath, 200 sq. ft.

Nest Studio

From $225,000 or $1,500/mo        Studio, 1 Bath, 330 sq. ft.

Nest One

From $263,000 or $1,950/mo      1 Bed, 1 Bath, 500 sq. ft.

Nest Two

From $317,000 or $2,800/mo        2 Bed, 1 Bath, 638 sq. ft.

Home Sweet... ADU

Bright, spacious interiors will have you escaping often to your new home away from home.

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Nestadu
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Unlock Your Backyard’s Potential

Nestadu

Host Family

Nestadu

Rental Income

Nestadu

Home Office

Nestadu

Guest House

Nestadu

Our Promise

Whether you’re looking for a site-built or prefab ADU, Nestadu’s combination of quality, pricing, and selection is unmatched.

  • High quality construction materials & workmanship
  • Lowest pricing relative to quality on the market
  • If you can dream it, we can build it
  • 10% of all profits go to housing the homeless

Our Process

Simple, straight forward, and hassle-free

Nestadu

Feasibility

Discover the perfect ADU for your needs through a personalized 15-minute consultation and a comprehensive site assessment.

Nestadu

Design

Choose your preferred ADU style and floor plan, or prefab model, and work with our team to customize a design that perfectly meets your needs.

Nestadu

Permitting

Leave the permitting to us. We handle everything from drawing submittal to communication with the municipality.

Nestadu

Construction

From foundations to utility hook-ups, our team manages every aspect of construction, ensuring a seamless, stress-free experience.

Build with the Best

When it comes to construction, our team is the best in the business, having built hundreds of homes and delivered billions in project value.

  • Unmatched quality
  • Licensed, bonded, insured
  • Highly skilled workforce
nestadu about us

What Our Clients Say

Google
Stephen Reid profile picture
Stephen Reid
Google star 1Google star 2Google star 3Google star 4Google star 5
Nestadu did a great job on my backyard ADU. Their team was professional, and the final result looks fantastic—well-built and blends in nicely with my home. Pricing was clear, and there were no surprise costs, which I really appreciated. I’ve already rented it out, and my tenant is really happy with the space. The process took a little longer than expected due to permits, but Nestadu kept me updated along the way. Overall, I’d definitely recommend them if you’re considering an ADU!
Google
Malcolm McVickar profile picture
Malcolm McVickar
Google star 1Google star 2Google star 3Google star 4Google star 5
One of the talents of the NestADU team that I appreciated the most was their ability to LISTEN! I wanted to create a custom 850 sq.ft. ADU on my property next to my house and we had to deal with a narrow site with a steep sloping back yard, so this wasn’t any place for a drop-ship prefab. Everything had to be custom-designed for my aging grandmother. Bret and John were able to take my thoughts and my Grandmother’s preferences and turn them into a very detailed, creative solution that met our requirements and create a set of drawings that got us our permit on our first submittal!
Google
Hubert Yoshida profile picture
Hubert Yoshida
Google star 1Google star 2Google star 3Google star 4Google star 5
My wife and I have been married for 60 years and were looking to build an ADU on our son’s property in central California. I have cancer and was looking to provide a home where my wife would be comfortable in the event that she would have to go on without me. We needed to find a contractor who we could trust to put together a complete package, would be responsive, offer custom options to fit our needs, and be sensitive to our family dynamics since it involved my son. We talked to several contractors, and found the process to be overwhelming. Finally, we contacted John Westcott, COO of Nestadu. We met him on a zoom call and he was very warm. understanding, clear, and professional. Later he and the CEO, Bret Ashworth, showed us an ADU that they had built on a lot in Novato, and came out to our site to verify its suitability. All this was done in a week! We had problems with the site but we would definitely use Nestadu when it comes to building an ADU.
Google
Joe McGrail profile picture
Joe McGrail
Google star 1Google star 2Google star 3Google star 4Google star 5
Great communication throughout. The process was very simple and easy- as the website had said it would be. Highly recommend.
Google
MGM profile picture
MGM
Google star 1Google star 2Google star 3Google star 4Google star 5
Very easy to work with. Transparent pricing and quality craftsmanship. 5/5.
Google
Fran John profile picture
Fran John
Google star 1Google star 2Google star 3Google star 4Google star 5
Customer service is excellent! Seamless process! I am very pleased with the final outcome of my new ADU.

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Are you interested in a Custom or Prefab ADU?

What is the difference between Custom and Prefab ADUs?

Custom:
A Custom ADU is site-built on your property to meet your exact specifications. This option offers complete flexibility in design, materials, and layout to perfectly match your vision and the existing aesthetics of your property. Ideal for unique requirements and personalized finishes.

Prefab:
A Prefab ADU is a pre-designed, factory-built unit that is delivered fully assembled to your property. This option is typically faster and more cost-effective than custom builds, with a variety of design options to choose from. Perfect for those seeking a streamlined and efficient solution.

Based on the above, are you interested in a Custom or Prefab ADU?