ADU & Room Addition Redwood City CA
Local design-and-build experts serving Redwood City homeowners. ADUs, room additions, kitchen and bathroom remodeling, all under one roof.
Local Expertise. Premium Craftsmanship. Built for Redwood City.
San Jose ADU & Room Addition serves homeowners across the Peninsula with full-service ADU & Room Addition Redwood City CA construction. We build in every part of the city, from downtown Redwood City and Mount Carmel to Emerald Hills, Farm Hill, Woodside Plaza, and the rest of 94061, 94062, 94063, and 94065.
Our ADU & Room Addition Redwood City CA scope handles detached ADUs (including hillside foundations and retaining structures), room additions, second-story builds, plus full kitchen remodeling and bathroom remodeling. We pull all City of Redwood City permits and coordinate every trade in-house.
Full-Service ADU, Room Addition, Kitchen and Bathroom Remodeling
Our four core services for Redwood City homeowners are ADU construction, room additions, kitchen remodeling, and bathroom remodeling. We also handle whole-home renovations and outdoor builds when they pair with the main project.
ADU Construction
Detached ADUs, attached units, garage conversions, and JADUs. Full-service work from feasibility and design to permits, construction, and final inspection. Built for rental income, family, or both.
Room Addition
Single-story bump-outs, second-story additions, primary suite expansions, and family room extensions. Seamlessly integrated with your existing home's architecture and systems.
Kitchen Remodeling
Open-concept layouts, custom cabinetry, quartz and natural stone counters, designer islands, and professional-grade appliances. We handle structural changes, electrical, plumbing, and finish work end-to-end.
Bathroom Remodeling
Walk-in showers, freestanding tubs, double vanities, heated floors, and custom tile. From a single guest bath refresh to a full luxury primary spa, we deliver bathrooms built to last.
Home Renovation
Whole-house renovations including foundation, framing, electrical, plumbing, HVAC, insulation, windows, doors, and finishes. We modernize older homes and bring them up to current code.
Deck & Patio Construction
Custom decks, covered patios, outdoor kitchens, pergolas, and exterior living spaces. Designed to extend your home's footprint and entertaining capacity year-round.
Serving Every Redwood City Neighborhood
We cover all of Redwood City, from the rapidly growing downtown to the hillside neighborhoods of Emerald Hills and Farm Hill.
Not sure if we cover your street? Give us a quick call at (650) 900-8598. We almost certainly do.
Redwood City Neighborhoods We Serve
A few of the Redwood City areas where we have recently completed projects:
The Difference Is in the Details
Building in Redwood City means working with a contractor who understands the local market, the local permits, and the local expectations for finish quality. Here is what sets San Jose ADU & Room Addition apart.
Local Permit Expertise
We know Redwood City's building department, plan-check workflow, and zoning quirks. Permits move faster because we submit complete, code-correct drawings the first time.
One Accountable Team
No subcontractor finger-pointing. Project managers, carpenters, plumbers, and electricians, all coordinated by us. One point of contact from kickoff to final walkthrough.
Fixed Quotes, No Surprises
You get a detailed, line-item proposal before signing anything. Change orders only happen when you request them, and they are priced transparently in writing.
Premium Finish Quality
Tight reveals, clean tile work, plumb walls, even paint. The finish work is what Redwood City homeowners notice, and what makes a remodel hold up for the next 20 years.
Clean Job Sites
Floor protection, daily cleanup, dust containment, and a locked, organized site every evening. Many of our Redwood City clients continue to live in their homes during construction.
Real Warranty Backing
Our workmanship warranty is written, transferable on resale, and we stand behind it. If something needs attention after we finish, we come back.
What Redwood City Homeowners Say About Us
Real reviews from real Redwood City clients, neighbors of yours who have lived through the project and would do it with us again.
"Our 1920s downtown bungalow needed a complete kitchen and bath gut. They preserved the original built-ins and bead-board, and the new kitchen feels like it has always belonged in the house. The project came in on time and on budget."
"Hillside property, retaining walls, sloped driveway. Our Emerald Hills lot was challenging. They built our 850 sq ft ADU on grade, handled the soil report, and the structure is rock solid. The view from the new unit is incredible too."
"We added a family room and renovated the primary bath in our Woodside Plaza ranch. The crew worked around our two dogs and small kids without any issues. Communication was constant, with daily updates and a clear schedule. No surprises."
Common Questions From Redwood City Homeowners
If you do not see your question here, call or message us. We will answer it straight.
Do you remodel homes throughout Redwood City, including Emerald Hills and Farm Hill?
Can you build an ADU on a hillside Redwood City lot?
How long do Redwood City building permits take?
Do you handle older homes with knob-and-tube wiring or galvanized plumbing?
Are you familiar with Redwood City's downtown precise plan?
Ready to Start Your Redwood City Project?
Get a free, no-obligation estimate from San Jose ADU & Room Addition, a local team that knows Redwood City inside and out. Most quotes scheduled within 48 hours.
📞 (650) 900-8598Request Free Estimate Online