Room Additions in Los Gatos, CA

GS Design and Build adds room additions to Menlo Park homes, creating real living space that fits your family and your property.

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  • Adds permanent square footage that stays with your home and increases its market value in a competitive Menlo Park market
  • Gives growing families dedicated space, such as a primary suite or family room, without the cost and disruption of moving
  • Second-story additions expand livable area while preserving your yard and outdoor space on tighter Peninsula lots
  • A single design-build team manages your project from planning through final walkthrough, reducing coordination gaps
  • New rooms are designed to match your home's existing structure and style, not look like an afterthought
  • Serving Menlo Park, Palo Alto, Atherton, Redwood City, San Mateo, and surrounding cities means local knowledge applied to your specific neighborhood
A newly completed room addition on a single-story Menlo Park home, showing a clean exterior transition between the original structure and the new living space. The addition features matching roofline and siding, with a view of the surrounding residential neighborhood.

Expert Room Additions in Los Gatos, CA

A room addition gives Menlo Park homeowners a way to grow their home without leaving the neighborhood they love. GS Design and Build handles the full scope, from design through construction, so every new room ties into your existing structure cleanly. We serve homeowners across Menlo Park and the wider Peninsula, including San Mateo, Palo Alto, Atherton, Redwood City, and beyond. Menlo Park lots often carry tight setback rules, lot coverage limits, and daylight plane regulations that shape what can be built and where. We account for those local constraints from the start, so your project is planned around what your specific property can support. Whether you need a primary suite, a family room, a home office, or a second-story addition, we take your vision from the first conversation all the way to a finished, livable space. If you are ready to add real square footage to your Menlo Park home, contact GS Design and Build to get started.

What's included

  • Adds permanent square footage that stays with your home and increases its market value in a competitive Menlo Park market
  • Gives growing families dedicated space, such as a primary suite or family room, without the cost and disruption of moving
  • Second-story additions expand livable area while preserving your yard and outdoor space on tighter Peninsula lots
  • A single design-build team manages your project from planning through final walkthrough, reducing coordination gaps
  • New rooms are designed to match your home's existing structure and style, not look like an afterthought
  • Serving Menlo Park, Palo Alto, Atherton, Redwood City, San Mateo, and surrounding cities means local knowledge applied to your specific neighborhood
15+ Years Residential Construction Experience
Family-Owned and Operated
ADU Specialists
Full Remodel Services
Multi-City Service Coverage

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Room Additions FAQ

Common questions about room additions in Los Gatos, CA.

Yes, many Menlo Park homeowners add space on smaller lots by building up rather than out. A second-story addition is one way to gain significant square footage while keeping your yard intact.

We build primary suites, family rooms, home offices, kitchen expansions, and second-story additions for homeowners across Menlo Park and the surrounding Peninsula cities. Each project is designed around your home's existing layout and your family's needs.

Many homeowners in Menlo Park stay in their home during construction, depending on the scope of the work. Larger structural projects, such as a full second story, may require more planning around how your living space is affected.

We manage both design and construction under one roof, so your addition is planned with your property's specific setbacks, lot coverage, and structure in mind from day one. This keeps the process connected from the first sketch to the finished room.

Yes, we serve homeowners in Palo Alto, Atherton, Redwood City, San Mateo, Burlingame, San Carlos, Belmont, and many other Peninsula and South Bay cities. Contact us to confirm service for your specific address.

Menlo Park has specific zoning rules around setbacks, floor area ratios, and lot coverage that affect what you can build and where. Starting with a contractor who knows those local rules helps you plan a project that fits your property from the beginning.

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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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  • 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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