Trusted ADU Builders in San Diego, California

We bring your ADU vision to life — from zoning and permits to full construction, handled by a local, award-winning team.

Building an additional dwelling unit (ADU) in San Diego is one of the smartest ways to increase property value and create rental income. However, navigating the City of San Diego’s Development Services Department (DSD) or the County’s permitting process can be a challenge.

At Urbatect, we are a full-service ADU builder and ADU contractor specializing in end-to-end delivery. We don’t just build; we custom design every ADU plan, handle permit submission, and secure every structural detail to ensure your project is completed 25–30% faster than the industry average.
Modern two-story custom home with backyard pool and patio, designed and built by Urbatect – showcasing integrated architecture, permitting, and construction services

Serving Homeowners
Across San Diego

As a trusted ADU builder and ADU contractor in San Diego, we serve homeowners throughout the City of San Diego and all 18 incorporated cities in San Diego County.

Our team understands local zoning, planning departments, and permitting requirements across the region.
We provide ADU design, permitting, and ADU construction services in:

Let’s Build Your ADU—Your Way!

Ready to turn that ADU  dream into reality? Whether you’re looking to design a custom  ADU or want to fast-track things with a ready-to-build plan, we’ve got options that fit your style, timeline, and budget.

Custom ADUs

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Custom ADUs

Tailored to your site, budget, and style — with finishes you choose for a space that’s truly yours.
Learn More

Build-Ready ADUs

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Build-Ready ADUs

Choose from our library of designer-curated floor plans. Save time and money without sacrificing quality.
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Our completed ADU 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

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

Highly Rated ADU Builders in San Diego

Google Reviews

Houzz Reviews

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

Build Zoom Reviews

Joy N.

August 8, 2025

We needed this company to stamp some engineering calculations. They were very timely getting them back to us. They were reasonably priced as well.

Joy N.

Chris L.

August 8, 2025

Needed stucco work done to my property. Urbatect Development finished fast, efficiently and cleaned up every day at the end of the work shift. Their field guys are very nice and hardworking!! Recommend them to anyone looking to do stucco work.

Chris L.

Lizzie A

August 8, 2025

Eric has been great to work with. I have worked with him on two Title 24 projects. He has been prompt and great with deadlines. I would recommend this company for title 24 work.

Thanks Eric!!!

Lizzie A

Cindy F

August 8, 2025

We shopped around & they gave me the best pricing to build a ADU. I definitely recommend them. They went beyond my expectations, im incredibly happy with the outcome of our project thanks to them

Cindy F

Danielle V

August 8, 2025

We needed to complete an entire project for our home renovation and after I researched all over the internet, I found Eric and Urbatect. He was the first person I felt I could trust and actually cared about our project, our home, and our family. He always delivered everything on time and helped us understand the complicated world of home construction. There are a lot of scammers whose quotes seem to be much lower than the final bill, but not the case if you work with Urbatect. They know how to do the job right while taking care of their customers. You need to hire these guys!

Danielle V

Kira L

August 8, 2025

My retired parents have an investment property in Santa Cruz county that required a ton of re-work due to molding and dry rot. Since we live oversees, we were looking for a company that could handle everything from dealing with the county, our property manager and the tenant. Urbatect came in with a very competitive price and timeline and really built rapport with my parents so we gave them the opportunity to do the job. The job went great as we were kept informed throughout the process of construction. We had excellent communication and the biggest take-away was that Urbatect did a fine job in keeping my parents informed and giving them piece of mind by sending them weekly photos and constant updates. Their project supervisor, Manny, was also great to do deal. Would recommend to anyone looking for quality work and great communication!

Kira L

Karla A.

August 8, 2025

My family & I are so excited about our ADU project coming to reality! We are about to pour concrete on our 1,000SF ADU! The Urbatect team has been nothing but phenomenal from day one. From the design phase to permitting and until now during construction, everything has been amazing! For anyone looking for a team that’s very easy to work with and that cares, the Urbatect team is the one especially if you are building an ADU. They specialize in ADU builds! We are so looking forward to finalizing the job. Special thanks to David who has been holding our hand since day one!!!!

Karla A.

Angel

August 8, 2025

I hired Urbatect for my 1,645sf remodel in Watsonville. They did the design, permits and remodel itself. Initially things were a little rough as the city was delaying our approval and it took longer than expected and while it had a lot to do with COVID, we were still able to finish my remodel in a timely manner & as per the original schedule. This meant urbatect working weekends and extended hours and I am appreciative they kept their budget and timeline despite working hours outside of the contract. I am very happy with the process and the team and I love the finishes and the overall outcome of my remodel.

Angel

Karen V.

August 8, 2025

We are survivors of the 2020 Santa Cruz Lightning Complex fire whose home was completely destroyed. We will always be grateful to Eric and his hardworking team at Urbatect for their work to get our rebuilding project design completed and through permitting. Eric kindly rescued us when we were in a very difficult and complex situation with our complete home rebuild. Our original architect had backed out with most of the work for the permit submittal nowhere near completion. Urbatect prepared all of the permit submittal documents/plans required by Santa Cruz County very quickly, taking into account the direction of our Geotechnical engineer and the many State and Local building codes specific to the build site that made the project a challenge – Seismic Zone, Debris Flow Zone, Wildland Urban Interface, Title 24 etc. Most counties and design firms are unfamiliar with the specific requirements for a wildfire rebuild project. As homeowners, we had been very involved with the difficult process of influencing the County to provide clear and reasonable guidance on their expectations. It was critical that Urbatect was willing to collaborate with us to address the very specific requirements that we had learned through our interactions with the various County agencies involved. There are many horror stories among the fire victims – Urbatect rescued us from ours. We always felt they were being ethical and honest with us, they delivered and that was huge.

Karen V.

Custom ADUs:
Perfect Fit for Your Home & Lifestyle in San Diego

You may want to customize an accessory dwelling unit floor plan to fit your San Diego property or add multiple units by attaching or stacking them. As experienced ADU builders in San Diego, we can modify any ADU plan to match your lot, zoning, and goals. Our in-house team will help design a custom ADU that works for your property.

Our Step by Step Approach

Site Discovery & Assessment
1
Feasibility & Conceptual Designs
2
Detailed Design Development
3
Permitting
4
Build & Execute
5
Walkthrough & Completion
6

The Urbatect Advantage

What Sets Us Apart

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Licensed

& Insured

Serving Homeowners
Across San Diego

As a trusted ADU builder and ADU contractor in San Diego, we serve homeowners throughout the City of San Diego and all 18 incorporated cities in San Diego County.

Our team understands local zoning, planning departments, and permitting requirements across the region.
We provide ADU design, permitting, and ADU construction services in:

How to find the right ADU builder near me?

Finding the right ADU builder in San Diego can make or break your project. This guide walks you through what to look for from permits to construction so you can make confident decisions. If you’re planning an ADU, start here to understand how to choose the right partner for your San Diego property.

Call Us Now!

(669) 201-0805

Email Us

info@urbatect.com

Book an Appointment

Schedule a free consultation