Los Altos ADU Developer — Garage, Home, and Backyard Builds.
About SYMBiHOM in Los Altos
Los Altos issued 476 ADU permits between 2017 and 2024 — one of the highest per-capita ADU rates in Santa Clara County. Whether you're converting a garage, repurposing interior space, or adding a backyard unit, the permitting path is established and the rental market is strong. SYMBiHOM is a CA HCD approved ADU Design-Build Developer serving Los Altos homeowners.
Our Credentials in Los Altos
SYMBiHOM's plans are CA HCD approved and eligible for the streamlined permitting pathway available to Los Altos homeowners through the Santa Clara County ADU Plans Gallery. We are also the only pre-approved garage conversion builder on the City of San José's vendor list — the most active ADU program in the region.
Permitting in Los Altos
Los Altos participates in the Santa Clara County Planning Collaborative ADU Plans Gallery. This program allows homeowners to work with pre-vetted vendors on pre-approved designs, reducing plan-check time and cost.
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.