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ADU Build Ready plans

Build-Ready ADU Plans for California – Customizable & Permit-Ready

Explore ADU Plan Ideas You Can Customize For Your Property, Budget, and Permitting Requirements.

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Accessory Dwelling Unit Floor Plans

Dive into our library of ADU build-ready plans below—click any design to know more about what is exactly included in each plan. Whether you want to select one of our build ready ADU plans, tweak one of them or dream up a fully custom ADU from scratch, we’re here to make it happen.

Our design team specializes in designing ADUs that look like they’ve always belonged on your property. Think cozy guest suites that mirror your home’s vibe, sleek stacked units for tight lots, or even a backyard studio with your grandma’s favorite porch swing.

Let’s build something that’s uniquely yours—stylish, functional, and totally seamless with your space.

3D floor plan rendering of a custom ADU interior, illustrating the open living space and bedroom as part of ADU build ready plans

Find Your ADU Plan

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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

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

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

Looking for a custom ADU floor Plan?

Are you looking for a custom ADU for your home? Our design-build team creates custom ADUs tailored to your vision, needs, and site conditions. We start by listening closely to your goals, budget, and lifestyle. Then, we blend creative design with practical expertise to develop plans that align with your site constraints and meet local regulations. No juggling professionals for your project– we handle everything, seamlessly turning your ideas into build-ready plans.

What Sets Us Apart

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(669) 201-0805

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Contact@urbatect.com

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