ADU Construction
Custom ADU construction in Campbell, CA. Legal, permitted accessory dwelling units for your property.
- ADU Design & Planning
- ADU Permitting
- ADU Construction & Build
- Garage Conversions
- Junior ADUs (JADUs)
<cite index="1-1">San Carlos is located in San Mateo County within the San Francisco-Oakland-Fremont Metropolitan Statistical Area.</cite> <cite index="2-2">The city is part of Silicon Valley</cite> and features <cite index="4-6">a median household income of $237,470</cite>, making it an affluent community with significant remodeling demand.
San Carlos
CA Service Area
Communities we serve
San Carlos
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San Carlos homeowners trust GS Design and Build for full-scope remodeling projects. We handle kitchen and bathroom renovations, home additions, ADU construction, and foundation repairs with precision and local expertise.
Your San Carlos home deserves quality craftsmanship. We specialize in interior demolition, hardscape installation, retaining walls, and window replacement tailored to Peninsula properties.
From site preparation to final fixture installation, we manage every detail. Our team delivers on-time, on-budget projects that enhance your property's value and functionality.
At a glance
GS Design and Build serves San Carlos homeowners with comprehensive remodeling, additions, and exterior construction.
Custom ADU construction in Campbell, CA. Legal, permitted accessory dwelling units for your property.
Complete interior remodeling services — from full home transformations to kitchens, bathrooms, and custom cabinetry — all under one roof.
Exterior upgrades and repairs to strengthen and beautify your home's outside.
Design Your Dream Project — our in-house architects and designers manage every step, from initial concept to final city approval.
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Serving San Carlos
Our crew knows San Carlos. We will show up on time, assess the job honestly, and give you a clear written number before asking you to decide anything.
Also serving across the panhandle:
Common questions from San Carlos homeowners about our services, process, and coverage.
<cite index="1-1">San Carlos is located in San Mateo County within the San Francisco-Oakland-Fremont Metropolitan Statistical Area.</cite> <cite index="2-2">The city is part of Silicon Valley</cite> and features <cite index="4-6">a median household income of $237,470</cite>, making it an affluent community with significant remodeling demand.
We cover all of San Carlos, including Redwood City, Belmont, Menlo Park, Palo Alto and surrounding communities. Travel does not affect our pricing — you pay for the work, not the drive.
Our crew is based in Campbell, which puts us within a short drive of all San Carlos communities. Our roofing work is backed by 17 years of local building experience across the panhandle.
Most ADU projects take 4-6 months from permit approval to completion, depending on size and complexity.
Yes. We manage all Campbell city permits, inspections, and code compliance throughout the project.
Costs vary by size and finishes, typically $150K-$300K. We provide detailed estimates after site evaluation.
Call us directly. Real answers, no scripts.
Stop by, call, or book online — we're always nearby when you need us.
Phone
(415) 933-2547Hours