Top-Rated ADU Builders in San Jose, CA for Design & Construction

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San Jose ADU Builders Who Handle Everything -Design to Keys in Hand

At Urbatect Development, we bring years of expertise and innovation to ADU construction in San Jose, CA. Whether you’re looking to create a rental unit, a home office, or extra space for family, we guide you through the entire process from initial concept to final build. Our team understands the specific permitting, zoning, and design requirements that come with building an ADU in the San Jose area, making the experience smoother and more efficient for you.

Why Homeowners in San Jose Choose Urbatect for ADU Projects

1. One-stop Solution with Expert Project Management, Design, Permit & Construction Team, so you avoid delays and communication breakdowns.
2. Custom Design Expertise so you can Maximize Your Lot. Our designers know how to work within tight city lots, setback rules, and zoning codes to help you get the most space and comfort possible.
3. Flexible And Customizable Design-build Solutions with Allowances to Choose Your Own Finishes.
4. Budget Transparency & Cost Control with Fixed Pricing That Protects Against Labor and Material Cost Increases For 16 Months.
5. 25–30% Faster Project Completion Without Compromising Quality.
6. Dedicated Permit Technician & 30% Faster Permit Expediting. San Jose’s permitting process is complex. Our dedicated permit technician accelerates approvals and keeps your project moving.
7. Advanced technology & 3D visualization

Why Homeowners in San Jose Choose Urbatect for ADU Projects

1. One-stop Solution with Expert Project Management, Design, Permit & Construction Team, so you avoid delays
and communication breakdowns.

2. Custom Design Expertise so you can Maximize Your Lot. Our designers know how to work within tight city lots,
setback rules, and zoning codes to help you get the most space and comfort possible.

3. Flexible And Customizable Design-build Solutions with Allowances to Choose Your Own Finishes.

4. Budget Transparency & Cost Control with Fixed Pricing That Protects Against Labor and Material Cost Increases For 16 Months.

5. 25–30% Faster Project Completion Without Compromising Quality.

6. Dedicated Permit Technician & 30% Faster Permit Expediting. San Jose’s permitting process is complex. Our dedicated permit
technician accelerates approvals and keeps your project moving.

7. Advanced technology & 3D visualization

Our Completed Projects

Perlita ADU

Shaff ADU

Cameron ADU

Governor ADU

Gallegos ADU

Yangzom ADU

Camden ADU

Modern ADU

Studio Loft

Build Ready ADU Plans

Fast track your design and construction process!

Model 13 – 1188SF, 3 Bed and 2 Bath

Model 12: 950SF, 2 Bed and 2 Bath

Model 11 – 900SF, 2 Bed and 2 Bath

Model 10- 800SF, 2 Bed and 2 bath

Model 09- 800SF, 2 Bed and 2 bath

Model 08: 792SF, 2 Bed and 2 bath

Model 07: 700SF, 2 Bed and 1 Bath

Model 06: 650SF, 2 Beds and 1.5 Bath

Model 05 – 634SF, 1 Bed and 1 Bath

Model 04: 600SF, 1 Bed and 1 Bath

Model 03 – 500SF, 1 Bed and 1 Bath

Model 02: 500SF, 1 Bed and 1 Bath

Model 01: 420SF, Studio, 1 Bath

We Know San Jose ADUs Inside and Out

Our San Jose team is deeply familiar with local building codes, parking exemptions, and energy compliance
standards (like Title 24), helping you avoid project delays or expensive redesigns. Whether you’re building
a backyard cottage, a garage conversion, or a two-story detached unit – we’ll ensure your ADU meets your needs
and local regulations.

Build Smarter. Build Faster. Build with Urbatect.

Thousands of homeowners across California trust Urbatect to handle everything under one roof — and now, we’re helping San Jose homeowners unlock the full potential of their properties with ADUs that are as beautiful as they are functional.

Detached ADU

A Detached Accessory Dwelling Unit (ADU) is a standalone structure, built independently from your main house and any other buildings on your lot. This offers maximum privacy and flexibility, perfect for rental income, guest accommodations, a home office, or multi-generational living.

Attached ADU

While an Attached Accessory Dwelling Unit (ADU) integrates with your existing home by sharing a wall, it's important to understand its independent nature. Unlike a simple extension, an attached ADU operates as a self-contained living space with its own private entrance. This ensures clear separation and privacy between the main house and the ADU.

Garage Conversion / Junior ADU (J-ADU) / ADU Over Garage

Your garage holds untapped potential! Converting it into a self-contained living space is a smart way to add value and flexibility to your property. Often, garage conversions fall under the category of an Accessory Dwelling Unit (ADU). When this conversion stays within the existing footprint of your single-family home, it might be classified as a Junior ADU (JADU). JADUs often have specific size limitations set by local ordinances and can be a cost-effective way to create an independent unit for family, guests, or even rental income. We can help you navigate the possibilities and determine if a JADU conversion is the right fit for your needs.

Basement & In-Law Unit Transformations

Have an underused basement or an existing in-law unit in your home? These are prime candidates for Accessory Dwelling Unit (ADU) conversions! Let us help you reimagine these spaces into comfortable, self-contained living areas. Whether you need extra income, guest accommodations, or a solution for multi-generational living, we'll handle the design and build process to create a valuable ADU that meets local requirements.