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Smart ADU Design Ideas & Build-Ready Plans for San Diego Homeowners

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

  • 3500+ Projects
  • Fully Licensed & Insured
  • Serving All of San Diego

Explore Build-Ready ADU Floor Plans for Every Property

Finding the right ADU house plan is the first step toward unlocking your property’s potential. Search dozens of our build-ready ADU floor plans below to find a layout that fits your lifestyle. Simply click into any floor plan to review the layout and features of each ADU plan.

Whether you are interested in tweaking our existing ADU build-ready plans to fit a specific corner of your lot or envisioning a completely custom ADU design, our team provides the flexibility you need.

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Luxury backyard pool with water and fire features

Find Your ADU Plan

Find Your ADU
Bedroom(s)
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Bedroom(s)
Bathroom(s)
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Bathroom(s)
Sq Ft
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Sq Ft

Model 01: 420SF, Studio, 1 Bath

  • 420
  • 1
  • 1
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Model 02: 500SF, 1 Bed and 1 Bath

  • 500
  • 1
  • 1
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Model 03 – 500SF, 1 Bed and 1 Bath

  • 500
  • 1
  • 1
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Model 04: 600SF, 1 Bed and 1 Bath

  • 600
  • 1
  • 1
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Model 05 – 634SF, 1 Bed and 1 Bath

  • 634
  • 1
  • 1
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Model 06: 650SF, 2 Beds and 1.5 Bath

  • 650
  • 2
  • 1.5
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Model 07: 700SF, 2 Bed and 1 Bath

  • 700
  • 2
  • 1
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Model 08: 792SF, 2 Bed and 2 bath

  • 792
  • 2
  • 2
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Model 09- 800SF, 2 Bed and 2 bath

  • 800
  • 2
  • 2
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Model 10- 800SF, 2 Bed and 2 bath

  • 800
  • 2
  • 2
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Model 11 – 900SF, 2 Bed and 2 Bath

  • 900
  • 2
  • 2
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Model 12: 950SF, 2 Bed and 2 Bath

  • 950
  • 2
  • 2
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Model 13 – 1188SF, 3 Bed and 2 Bath

  • 1188
  • 3
  • 2
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Our Completed Projects

Castro Valley ADU & Office/Gym Space

Castro Valley, CA

  • Size: 798 sq ft ADU + 639 sq ft attached office/gym space
  • No of stories: 1
  • Special features: Attached office/gym space & newly completed driveway

Albany ADU

Albany, CA

  • Size: 800 sq ft
  • No of stories: 2
  • Special features: ADU with ~200 sq ft patio with wood trellis

Custom Home​

Santa Rosa​

  • Size: 3,512 sq ft
  • No of stories: 2
  • Special features: Modern farmhouse design

Arcilla ADU

San Diego

  • Size: 375 sq. ft
  • No of stories: 1
  • Special features: Compact design and skylight

Sawgrass Residence

Santa Rosa​

  • Size: 3,100 sq ft
  • No of stories: 1
  • Special features: Vaulted beam ceilings & open layout

Camden ADU

Oakland

  • Size: 222 sq. ft
  • No of stories: 1
  • Special features: Compact design & murphy bed
See Our Work

Most trusted adu builders in San Diego

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

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The Urbatect Advantage

  • 1. One-stop Solution with expert Project Mangers & Design Team
  • 2. Budget Transparency & Cost Control
  • 3. 25-30% Faster Completion, Without Compromising quality
  • 4. Dedicated permit technician and 30% faster permit expediting
  • 5. Flexible and Customizable Design Build Solutions with Flexible Options
  • 6. Advanced Technology & 3D Visualization

What Sets Us Apart

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Licensed

& Insured

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.
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Start Your ADU Project Now!