Home Additions in Los Gatos, CA

GS Design and Build helps Menlo Park homeowners add living space with home additions built to fit their property and lifestyle.

Call (415) 933-2547
  • Gain usable square footage without leaving your neighborhood or your lot
  • New space is designed to match your existing rooflines, finishes, and floor plan flow
  • A well-built addition adds lasting value to your Menlo Park property
  • One team manages design and construction, reducing handoff errors and miscommunication
  • Additions are planned around your site's specific conditions, including tree canopy and structural requirements
  • Expanded living space supports changing family needs, from a growing household to a dedicated home office
A newly completed home addition in Menlo Park, California, showing a rear room extension with windows that match the existing home's exterior. The addition connects seamlessly to the original structure with matching roofline and siding.

Expert Home Additions in Los Gatos, CA

Home additions in Menlo Park give you more space without the cost and disruption of moving. GS Design and Build handles the full scope, from early design through final construction, so you work with one team from start to finish. We build room additions, second-story additions, primary suite expansions, family room extensions, and kitchen additions across Menlo Park and the surrounding Peninsula. Menlo Park sits in a seismically active region, and many homes here have mature trees with protected canopies that affect where and how an addition can be built. We plan around those site realities from the beginning. Our work covers the entire process, including design coordination and construction, so the new space connects naturally to your existing home. Homeowners across Menlo Park, Atherton, Palo Alto, and San Mateo trust us to bring their vision to life. Call us to talk through what you want to build.

What's included

  • Gain usable square footage without leaving your neighborhood or your lot
  • New space is designed to match your existing rooflines, finishes, and floor plan flow
  • A well-built addition adds lasting value to your Menlo Park property
  • One team manages design and construction, reducing handoff errors and miscommunication
  • Additions are planned around your site's specific conditions, including tree canopy and structural requirements
  • Expanded living space supports changing family needs, from a growing household to a dedicated home office
15+ Years Residential Construction Experience
Family-Owned and Operated
ADU Specialists
Full Remodel Services
Multi-City Service Coverage

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Home Additions FAQ

Common questions about home additions in Los Gatos, CA.

Yes, second-story additions are possible in Menlo Park, though they require structural review of your existing foundation and framing. GS Design and Build assesses your home's current structure before any design work begins.

We build room additions, primary suite expansions, family room extensions, kitchen additions, and second-story additions throughout Menlo Park. Each project is planned around your existing layout and your property's specific conditions.

Yes, a well-planned addition in Menlo Park should match your home's rooflines, siding, windows, and interior finishes. We design for continuity so the new space feels like it was always part of the home.

Yes, Menlo Park's Heritage Tree ordinance protects significant trees, and root protection zones can limit where an addition is placed on your lot. We account for these site constraints during the planning phase.

Yes, we serve homeowners in Palo Alto, Atherton, Redwood City, San Mateo, and many other Peninsula communities. Contact us to confirm service for your specific address.

Call or contact us to describe what you want to build and we will talk through your goals for your Menlo Park home. From there, we guide you through design and into construction as a single, connected team.

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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

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

I hired GS Design and Build for a full remodel on our home in Santa Clara and was blown away by the results. Geri provided a detailed estimate and timeline upfront, and everything stayed on track. Her design sense helped transform a dated layout into an open, modern living space. Her crew was friendly, tidy, and very skilled. They even handled a few surprises during demo without adding delays. It’s hard to find a full remodel contractor who keeps every promise, but Geri does. I wouldn’t hesitate to recommend her for any large-scale renovation project. Truly five-star work.

Patricia R Google review · September 2025

GS Design and Build completed a room addition for us in Foster City, and we’re beyond happy with the outcome. We needed more space for our growing family, and Geri made the entire process seamless. She coordinated with the city, helped with layout ideas, and oversaw every detail. The construction crew was clean, courteous, and clearly experienced. The addition flows beautifully with the original home and feels like it was always there. If you’re looking for a reliable room addition contractor who cares about getting it right, this is the team to hire. Great experience from start to finish.

Corrie Google review · August 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

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