Much of Santa Clara was built in the 1950s and ’60s: single-story homes on flat, regular lots with attached garages. That’s an ideal starting point for garage conversions, rear additions and detached ADUs, but it also means original electrical panels, aging plumbing and older foundations that need to be planned for up front. We scope those conditions before pricing and work through the City of Santa Clara’s building and planning process, including extra review for historic properties in and around the Old Quad.
You get a fixed construction price and one project manager from design through final inspection.
We handle every permit. Here's the short version of what Santa Clara typically requires for common projects:
Detached, attached and garage ADUs for rental income or extended family.
Turn an existing garage into a legal ADU, in-law suite or home office.
Add a private suite of up to 500 sq ft inside the home you already own.
From refreshes to estate kitchens, typically $60K to $250K+.
Walk-in showers, primary suites and accessible bathrooms.
Bedrooms, primary suites and guest houses that match your home.
Whole-house renovations planned from 4–5 months to 12+ months.
One team for design, city approvals and construction.
2026 ranges for planning purposes. Your fixed price follows a site visit.
Most Santa Clara garage conversions run $120,000–$200,000 for a legal studio or one-bedroom ADU, and $45,000–$90,000 for an office or bonus room without a kitchen.
Silicon Valley Power, the city's municipal utility, serves Santa Clara homes. We coordinate any service upgrade or new meter with them as part of the project.
Often, yes, subject to zoning height, setback and floor-area limits and design review. We confirm feasibility for your lot before you pay for full plans.
Plans and permits typically take 8–14 weeks, and construction of a detached ADU usually takes 16–22 weeks once permits are issued, so most detached ADUs are finished in about 6–9 months. Garage conversions typically take about 4–6 months.
Most Santa Clara kitchen remodels fall into three levels: about $60,000–$95,000 for a refresh, $95,000–$150,000 for a signature remodel with semi-custom cabinetry and layout changes, and $150,000–$250,000 or more for an estate-level custom kitchen, plus city permit fees.
Construction for a single-room addition typically takes 3–4 months, and a primary suite addition 4–6 months, plus time up front for design, engineering and permits.
Planning a project in Santa Clara? Tell us about your property and choose your project type. We’ll review your ideas and follow up within one business day to schedule a free consultation.
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