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ADU Construction & Garage Conversions service in San Jose CA
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ADU Construction & Garage Conversions in San Jose, CA

Backyard ADUs, junior ADUs, and garage conversions built with high-performance insulation and efficient mini-split systems to keep utility bills low.

4 - 8 months2-year workmanship warranty
Starting at $180,000|Typical range: $180,000 - $350,000
Detached new-construction ADU. Garage conversions and JADUs are typically lower and quoted individually after a site review.

About Our ADU Construction & Garage Conversions Service

Accessory Dwelling Units are one of the smartest investments a San Jose homeowner can make, and California's streamlined ADU laws make them more attainable than ever. We build detached backyard ADUs, attached units, junior ADUs, and garage-to-living-space conversions -- handling design, San Jose planning and building permits, utility connections, and the full build. Whether you want a private space for family, a home office, or rental income in one of the country's tightest housing markets, we manage the entire process and deliver a finished, code-compliant, independently metered unit.

What's Included

Detached and attached ADUs
Junior ADUs (JADUs)
Garage-to-living-space conversions
San Jose planning and permit management
Independent utility and metering
Kitchen, bath, and full interior build

Our Process

1

Feasibility & Design

We review your lot, setbacks, and San Jose ADU rules, then design a unit that maximizes usable space within code.

2

Permits & Utilities

We manage the full planning and building permit process and coordinate water, sewer, and electrical connections.

3

Foundation to Finish

Foundation, framing, MEP, insulation, and interior finishes -- built on a clear schedule with staged inspections.

4

Final Sign-Off

We complete final inspections, walk the finished unit with you, and hand off all permit and warranty paperwork.

Why ADU Construction & Garage Conversions Matters

  • Rental income in a high-demand South Bay market
  • Multigenerational or private guest living space
  • Significant added property value
  • Streamlined under California ADU law
  • Independently metered, fully code-compliant unit

Frequently Asked Questions

Am I allowed to build an ADU on my San Jose property?
Most single-family and multi-family lots in San Jose qualify under California's statewide ADU laws. We run a feasibility review of your setbacks, lot size, and zoning before you commit to anything.
Can an ADU generate rental income?
Yes -- that's why so many South Bay homeowners build them. A well-designed ADU adds long-term rental income and meaningful resale value in one of the tightest housing markets in the country.
How long does an ADU take to build?
A detached ADU typically runs 4-8 months from permit to final sign-off, depending on size and utility work. Garage conversions are usually faster.

ADU Construction & Garage Conversions Service Areas

We provide adu construction & garage conversions across San Jose and the South Bay, including:

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Free on-site estimates

Starting at

$180,000

Detached new-construction ADU. Garage conversions and JADUs are typically lower and quoted individually after a site review.

Text Us for a Free EstimateRequest Online Quote

Duration

4 - 8 months

Warranty

2-year workmanship warranty

Why Choose Us

  • Licensed & Insured
  • Fixed Upfront Pricing
  • Permits Handled
  • Free Estimates
  • 2-Year Warranty
  • South Bay Local

Get Your Free Estimate Today

Whether you are planning a kitchen or bathroom remodel, a backyard ADU, an addition, or a whole-home renovation, our San Jose team is ready to help. Text us or send the form for a free, no-obligation estimate.

Since 2013

South Bay Local

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