Milpitas ADU Developer — Garage, Home, and Backyard Conversions.

About SYMBiHOM in Milpitas

Milpitas has its own active Pre-Approved ADU Program and issued 44 ADU permits in 2024. Located at the intersection of Silicon Valley's two major employment corridors, Milpitas rental demand is consistently strong — and the opportunity spans garage conversions, home conversions, and new backyard units. SYMBiHOM is a CA HCD approved ADU Design-Build Developer serving Milpitas homeowners.

Our Credentials in Milpitas

SYMBiHOM's plans are CA HCD approved and eligible for the City of Milpitas Pre-Approved ADU Program. We are also the only pre-approved garage conversion builder on the City of San José's official vendor list — the highest-volume ADU program in the region.

Permitting in Milpitas

The City of Milpitas Pre-Approved ADU Program uses standard construction plan sets pre-approved by the City. Plans over 800 sq. ft. require a minor site development permit from Planning prior to the building permit. No modifications to pre-approved plans are permitted.

ADU builder San Jose pre approved garage conversion and accessory dwelling unit plans

Animation of Symbihom’s Garage Conversion

What We Build

•       Attached or detached garage conversion — studio, 1BR, or 2BR, 300–850 sq. ft.

•       Junior ADU (JADU) — attached garage, up to 500 sq. ft.

•       Home conversion — convert underutilized interior space into a fully permitted ADU

•       Backyard ADU — new detached unit on your existing lot

•       State-approved factory-built panel system

•       Fully customizable finishes — cabinetry, flooring, fixtures

•       ADA-accessible design available

•       Sub-metered electricity and water available

Timeline:

Typical build: 4–6 weeks after permits are issued. Designs are customizable across garage conversions, home conversions, and backyard ADUs.

Is Your Property Eligible?

The lot must be zoned residential with an existing single-family home or duplex, and must not be located in a geohazard, landslide, flood zone, or Wildland-Urban Interface area. The property must not have an open Code Enforcement violation.

Not sure if your property qualifies? Fill out the form below. We check zoning and flag any issues before you spend anything.

See Symbihom’s Floor Plan Options and Backyard Builds