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Custom ADU
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Custom ADU Design, Permitting & Construction Services

Designed for Your Home, Budget & Lifestyle
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Dreaming of a Custom ADU That Fits Your Property Perfectly?

Urbatect specializes in fully custom ADUs – designed from the ground up to reflect your taste, maximize your lot, and deliver lasting value. From the first sketch & ADU plans to the final nail, we handle everything design, permits, and construction so you can sit back and watch your dream space come to life.

Our in-house experts will work closely with you to create an ADU that fits your property and budget perfectly. No permit headaches, no budget surprises just a seamless, stress-free process from start to finish.

Custom accessory dwelling unit with beige siding, French doors, patio furniture, and landscaped backyard

Our Completed Projects

Addition to a Senior Living Facility

Lynnwood

Albany ADU

Albany, CA

Amburose Custom Home

Fremont

Arcilla ADU

San Diego

Camden ADU

Oakland

Castro Valley ADU & Office/Gym Space

Castro Valley, CA

Custom Home​

Santa Rosa​

Flying Lady Winery

St. Helena

Gallegos ADU

Watsonville

Governor ADU

Harbor City

Millbrook Residence

Santa Rosa

Milpitas ADU

Milpitas

Modern Custom Home

Santa Rosa

Multi Family Development

Location: San Diego

Paxton custom home

Santa Rosa

Perlita ADU

Los Angeles

Phan ADU

San Leandro

Salvator Apartments

Sacramento

Sawgrass Residence

Santa Rosa​

Shaff ADU

Aptos

Sierra Home

Sacramento

Smiley custom home

Olympic Valley

St. Leo’s Apartments

Redwood

Tynan Village Apartments

Salinas

Whittier ADU

Whittier

Our Step by Step Approach
Creating Your Dream ADU with Urbatect

Consultation and Site Visit

Every project begins with a consultation to understand your vision, assess your property, and explore what’s possible under local regulations. Whether it’s an attached ADU, garage conversion, or backyard cottage, we’ll guide you through planning, feasibility, and budgeting to turn your ADU goals into reality.

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Consultation and Site Visit Illustration

ADU Design & Permitting

Our designers collaborate with you and our construction team to create a custom design that balances aesthetics, functionality, and cost. By aligning design with construction early, we reduce surprises and stay on budget. From 3D renderings to permit-ready plans, every detail is crafted for value and impact.

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ADU Design & Permitting Illustration

ADU Permits

Getting a permit doesn’t have to be stressful. We prepare your plans accurately and handle all coordination with city officials, avoiding delays. Ourpermit technicians manage the process from paperwork to corrections helping you get approvals up to 30% faster than industry norms. With Urbatect, permitting is streamlined, efficient, and hassle-free.

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ADU Permits Illustration

ADU Construction

With 15+ years of expertise, our skilled construction team brings your ADU to life with precision. From foundation to finishes, we manage every detail to ensure superior craftsmanship and timely completion. You’ll have a dedicated project manager to keep you informed, so there are no surprises  just a beautifully built ADU tailored to your needs.

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ADU Construction Illustration

1,000+ Happy Customers.
Real Stories, Real Results.

Yelp Reviews

  •   After speaking with several construction companies on getting a permitted ADU built at a property, Urbatect seemed to be the most organized and reasonable in terms of timeline, quality, and... read more

    thumb Nico W.
    3/26/2025

      I worked with Urbatech to plan the construction of an detached ADU in the backyard of my home. I had contacted several ADU construction companies to discuss the process... read more

    thumb Ronald S.
    11/27/2024

      Worked with Urbatect Development to build an ADU in backyard. They worked with us getting the price we wanted as well as including upgrades that were deal breakers for us.... read more

    thumb Brian S.
    10/15/2024
  •   I was in a panic. I have been trying for 5 months to simply put in a window through hcd because I have a manufactured home. Endless delays. After being... read more

    thumb Dori R.
    10/05/2024

      We are very satisfied with the work that Urbatect has provided us. We have worked together on several engineering projects and the team has always provided us with a superior... read more

    thumb Joe P.
    9/17/2024

      Amazing service, excellent quality on design , for sure they will be my engineers for all my projects.
    I highly recommend them.

    thumb Lizzeth B.
    9/12/2024
  •   Although there was some variability in the people I worked with as a client to Urbatect, I'm going to focus my evaluation on the outstanding engineer I worked with, Jay.... read more

    thumb Gary O.
    7/26/2024

The Urbatect Advantage

Why Choose a Custom ADU Floor Plan?

Ever walked into a home that just feels right? That’s the power of customization a space designed to fit your site, budget  and lifestyle. For ADUs, customization isn’t just a luxury; it’s often a necessity. A custom ADU is:

Custom ADU interior featuring a modern bathroom with standalone tub and natural wood accents

1. Tailored to Your Property

From setbacks to slopes and local regulations, every site has unique challenges. We design your ADU to fit seamlessly structurally, legally, and aesthetically.

2. Designed for You

Whether it’s a minimalist retreat, a cozy in-law suite, or a rental-ready unit, we design your ADU to match your lifestyle, needs, budget and future goals.

3. Personalized Style

Complement your home’s design or make a unique design statement.

4. Functional and Efficient

Maximize space and functionality, while optimizing for natural light, airflow, and energy efficiency.

What Sets Us Apart

years of experience
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Licensed

& Insured

Call Us Now!

(669) 201-0805

Email Us

Contact@urbatect.com

Book an Appointment

Schedule a free consultation