Garage Conversions in Los Gatos, CA

GS Design and Build delivers garage conversions in San Jose and Menlo Park, turning existing garages into fully permitted ADU living spaces.

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  • Adds a fully permitted, rentable living unit to your existing property footprint
  • No replacement parking required under California ADU law when converting a garage
  • Increases assessed property value by adding legal habitable square footage
  • Reuses your existing structure, reducing site work compared to a new detached build
  • Provides a private space for family members, guests, or long-term tenants
  • Keeps the garage footprint, so no new setback requirements apply to the converted structure
A finished garage conversion ADU interior in San Jose showing an open-plan kitchen and living area with a private entrance door. The converted space features insulated walls, recessed lighting, and a full bathroom visible through an interior doorway.

Expert Garage Conversions in Los Gatos, CA

GS Design and Build handles garage conversions for homeowners in San Jose and Menlo Park who want to add a legal, livable ADU to their property. We convert your existing attached or detached garage into a complete living unit with a kitchen, bathroom, sleeping area, and private entrance. Every project is designed to meet California state ADU code and local building requirements. Under current California law, garage conversions do not require replacement parking, which removes one of the biggest barriers homeowners face. Menlo Park and San Jose both sit in one of the Bay Area's highest-demand housing markets, where proximity to major employers drives steady rental interest. Many homes in these areas were built with garages that sit underused, making them strong candidates for conversion. We handle design, plan preparation, and construction coordination from start to finish. If you own a single-family home in San Jose or Menlo Park and want to put your garage to work, contact GS Design and Build to discuss your project.

What's included

  • Adds a fully permitted, rentable living unit to your existing property footprint
  • No replacement parking required under California ADU law when converting a garage
  • Increases assessed property value by adding legal habitable square footage
  • Reuses your existing structure, reducing site work compared to a new detached build
  • Provides a private space for family members, guests, or long-term tenants
  • Keeps the garage footprint, so no new setback requirements apply to the converted structure
15+ Years Residential Construction Experience
Family-Owned and Operated
ADU Specialists
Full Remodel Services
Multi-City Service Coverage

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Garage Conversions FAQ

Common questions about garage conversions in Los Gatos, CA.

Yes, a converted garage can be rented as an ADU in San Jose if it includes a kitchen, bathroom, sleeping area, and a separate entrance. California state law allows long-term rentals of 30 days or more in a garage conversion ADU.

No replacement parking is required when you convert a garage to an ADU in Menlo Park under current California ADU law. This applies to both attached and detached garage conversions.

A garage conversion ADU in San Jose must include a kitchen, bathroom, sleeping area, and its own entrance to qualify as a legal living unit. GS Design and Build designs each layout to meet those code requirements within your existing garage footprint.

Yes, GS Design and Build manages design, plan preparation, and construction for garage conversions in Menlo Park. We coordinate every phase so you have one point of contact throughout the project.

A garage conversion works well on smaller San Jose lots because it reuses the existing footprint and does not require new setbacks. You add livable square footage without expanding your building's ground coverage.

Homeowners in Menlo Park use converted garage ADUs for long-term tenants, adult children, aging parents, or as a dedicated home office. The high rental demand near major local employers makes these units practical for generating steady income.

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What Santa Clara County homeowners say.

4.9
52 Google reviews

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From our very first appointment with Gershon, we felt confident we were in excellent hands. He listened carefully to what we wanted, offered thoughtful design suggestions, and walked us through the process and timeline in a clear, transparent way. Every step—from initial design and planning to the finishing touches—was handled smoothly, with consistent updates so we always knew what was happening next. The crew that worked on our home was hard working, professional, and very knowledgeable. They arrived on time, respected our home, and kept the work area as tidy as possible, which we really appreciated. The finished kitchen looks fantastic and functions even better than we hoped and the quality of the workmanship really stands out. Friends and family have already commented on how beautiful and well thought-out the space is. We would not hesitate to hire GS Design & Build again for future projects. If you’re looking for a top-tier contractor for your home remodeling, GS Design & Build are an outstanding choice.

Charles Decker, DC, ACN Google review · June 2026

GS Design and build did an amazing job uplifting my garage. Gheri was the most responsive of the contractors I got quotes from and he was very quick to respond with a reasonable estimate. He was always reachable and ensured the team was very punctual. His crew did a great job completing the job and handling surprises. I didn’t have to contact Gheri for anything during the job. The final work quality was great and my garage looks great! I will highly recommend GS Design and Build for your home improvements Update: i did a bathroom remodel with them 6 months after the garage upgrade and it was amazing! The team has remained consistent with their quality and workmanship!

viswanathan vaidyanathan Google review · June 2026

We used GS Design and Build for a room addition in Redwood City and couldn’t be happier. Geri helped us figure out the best layout for our new sunroom and made sure the style blended with the rest of our house. Her crew worked clean and fast, and everything passed inspection the first time. The project wrapped up on schedule and within our budget. The space gets amazing light and has quickly become our favorite part of the house. If you’re in the market for a room addition contractor who truly listens and executes, don’t look any further.

Ronda Richardson Google review · September 2025

Just got my home addition done! GS design helped us build a new bathroom and a new master bed in new construction. Everything was fully licensed and Geri managed everything at his end. I found Geri on Nextdoor and was nervous before signing him up but to my surprise, I couldn’t have asked for more! He has a lovely team of people who specialize in what they do. Geri cared for me and made sure I am satisfied at each step. He gave me a good run down of what he plans to do in the coming week which was very satisfying. Geri’s rates were also very competitive and he was reasonable when the work order changed. What I liked about Geri a lot is also that his interior designing skills are also very strong so he guided us when the size of the window was off or in making lovely choices of the flooring. You can trust Geri blindly and go with him. You will not regret it. Thanks Geri, for all the great work.

Vedant Dhandhania Google review · April 2022

We live in Redwood City and reached out to GS Design and Build for a second-story room addition. Geri coordinated with our structural engineer and managed the project with confidence. We were impressed with how smoothly everything went. Her communication throughout the process was excellent. The new space has completely transformed our home and given us the extra flexibility we needed. Top-notch room addition contractor and a pleasure to work with.

Deanna Callison Google review · September 2025

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Hours

  • Monday 8:00 AM - 7:00 PM
  • Tuesday 8:00 AM - 7:00 PM
  • Wednesday 8:00 AM - 7:00 PM
  • Thursday 8:00 AM - 7:00 PM
  • Friday 8:00 AM - 7:00 PM
  • Saturday Closed
  • Sunday Closed

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15+ Years Residential Construction Experience
Family-Owned and Operated
ADU Specialists
Full Remodel Services
Multi-City Service Coverage
Call (415) 933-2547

Mon–Fri 8:00 AM - 7:00 PM · Sat Closed · Responses within 2 hrs