- (669) 609-0069
- truebuildersca@gmail.com
- Lic # 1110631
Service area · Cupertino, CA
Remodels & Additions Built for Cupertino Families.
Near top-rated schools and quiet, tree-lined streets, Cupertino homeowners usually renovate to stay — expanding for growing families, adding in-law space and updating homes built in the 1950s–70s. True Builders handles design, permits and construction under one contract. Licensed (CSLB #1110631) and insured.
Local Knowledge, Local Results
Why Cupertino HomeownersChoose True Builders.
Cupertino’s single-family rules are more detailed than most. Second-story additions are reviewed for size, setbacks and neighbor privacy, sometimes including privacy landscaping, and some Eichler neighborhoods are limited to single-story homes. We look at your lot’s zoning and neighborhood rules first, so the design you invest in is one the City of Cupertino will approve.
You’ll get a fixed construction price and one project manager from first meeting to final inspection.
Recent Work
Projects Like Yours.
Cupertino Permits & Rules
What to Know Before You Build in Cupertino.
We handle every permit. Here's the short version of what Cupertino typically requires for common projects:
- Second-story additions — Reviewed under Cupertino's single-family zoning for floor area, second-floor size, setbacks and privacy impacts on neighbors.
- Single-story neighborhoods — Some neighborhoods carry a single-story overlay that limits homes to one story; we confirm your parcel's zoning before design.
- ADUs — Approved ministerially under California ADU law, with 4-foot side and rear setbacks and no replacement parking for garage conversions.
- Protected trees — Removing protected trees requires a city permit, and construction nearby may need tree protection measures.
- Remodels — Permits are required for structural, plumbing, electrical and mechanical changes.
SERVICES IN CUPERTINO
Everything Your Cupertino Home Needs.
From ADUs and garage conversions to kitchens, bathrooms and additions, one licensed team handles design, permits and construction for Cupertino homeowners.
ADU Builder
Detached, attached and garage ADUs for rental income or extended family.
Garage Conversion
Turn an existing garage into a legal ADU, in-law suite or home office.
Junior ADU (JADU)
Add a private suite of up to 500 sq ft inside the home you already own.
Kitchen Remodeling
From refreshes to estate kitchens, typically $60K to $250K+.
Bathroom Remodeling
Walk-in showers, primary suites and accessible bathrooms.
Room Additions
Bedrooms, primary suites and guest houses that match your home.
Full Home Remodeling
Whole-house renovations planned from 4–5 months to 12+ months.
Permits & Design-Build
One team for design, city approvals and construction.
Typical Cupertino Project Costs & Timelines
- Kitchen remodel: about $60K–$95K for a refresh, $95K–$150K for a signature remodel, $150K–$250K+ for an estate kitchen
- Bathroom remodel: about $35K–$60K for a refresh up to $100K–$175K+ for a primary suite
- Garage conversion to an ADU: about $120K–$275K
- Detached ADU: about $275K–$600K+, typically finished in 6–9 months
- Room addition: 3–4 months of construction for one room, 4–6 months for a primary suite
- Whole-home remodel: 4–5 months for select spaces up to 8–12+ months for a full redesign
2026 ranges for planning purposes. Your fixed price follows a site visit.
How a Cupertino Project Works
- Free consultation & site visitWe review your goals, your lot and Cupertino zoning rules before anything is designed.
- Design & fixed pricePlans, engineering and a clear, fixed construction price before work begins.
- PermitsWe submit to the City of Cupertino and handle every plan-check comment for you.
- Build & final inspectionOne project manager from the first day on site through final sign-off.
Also Serving Homeowners Near Cupertino
CUPERTINO FAQS
Local Questions, Answered.
In many neighborhoods, yes, with review covering size, setbacks and privacy. Some neighborhoods are restricted to single-story homes. We check your lot before design starts.
Ground-floor additions in the Bay Area typically run about $450–$700 per square foot all-in, and second-story additions cost more because of structural and roof work. We give a fixed price after a site visit.
Yes. We plan Eichler remodels around post-and-beam construction, radiant slab floors and low-slope roofs so updates keep the home's mid-century character.
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 Cupertino 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.
It depends on scope: remodeling select spaces such as the kitchen and bathrooms takes about 4–5 months, a comprehensive remodel with structural changes 6–8 months, and a complete home redesign 8–12 months or more.
Ready to Start?
Get Your CupertinoProject Quote.
Tell us about your Cupertino home and what you’d like to build. We’ll reach out within one business day.
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Let's Discuss
Your Project Goals.
Planning a project in Cupertino? 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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