Service Area
Design-build remodeling in Cupertino, CA.
Cupertino sits inside the area BayCraft serves. Design and construction stay under one roof, so a single team carries your project from the first conversation to the final walkthrough.
We build home additions, ADUs, kitchens, bathrooms and whole-home remodels for families across the South Bay and the Peninsula, working from Santa Clara under California contractor license #1158750. Permits, zoning research, plan submissions and inspections are handled by us, with whichever agency has jurisdiction over your address.
- Licensed CSLB #1158750
- Cupertino, California
- Design-build under one roof
- Based in Santa Clara, CA
In Cupertino
What to know before you build here.
Cupertino writes many of its limits into the zoning letters on your parcel, so the first step is reading your zone. Second stories come with floor ratio, setback and privacy planting rules that shape the design. An ADU over 800 square feet starts counting against your floor area, and we check all of this before a concept is drawn.
Building in Cupertino
01
Your zoning suffix can cap you at one story
Single-family zoning in Cupertino comes with suffixes that change what you can build. In an R1-i Single Story Overlay district, the residents chose to limit homes to one story and 18 feet. R1-e covers an Eichler area with its own building design requirements and design handbook. R1-a is a semi-rural district with its own regulations. Every R1 parcel is built or remodeled under the R1 Ordinance, and one-story and two-story homes follow different processes. We confirm the zone before anyone sketches a second story.
City source02
What sends a second story to design review
The City consulting architect reviews any second story larger than 66% of the first floor, or closer than 15 feet to an interior side property line. If the two side setbacks add up to less than 30 feet, the second story needs Residential Design Review. A notice board must stay up on site during the public comment period. Some second-story windows face side or rear neighbours, have a sill 5 feet or lower, and use clear or opening glass. Those need privacy planting within a 30-degree view cone unless the neighbour signs a waiver.
City source03
Oaks and cedars are protected from 12 inches
Cupertino protects specimen trees once a single trunk reaches 12 inches in diameter, or 24 inches combined for a multi-trunk tree, measured 4.5 feet above ground. Specimen species include native oaks, California buckeye, big leaf maple, western sycamore, bay laurel, and deodar and blue atlas cedars. Trees required by an earlier permit and privacy planting trees are protected too. A removal needs a permit with public notice, plus replacement trees or an in-lieu fee. The City says a retroactive permit after removal costs far more than applying first.
City source04
Stay at 800 square feet to protect your floor area
In Cupertino, an ADU of 800 square feet or less is exempt from lot coverage, floor area ratio and open space limits. It can sit 4 feet from the side and rear property lines. Above 800 square feet, it counts against all three limits. Units under 750 square feet skip park, storm drain and school impact fees. A second-story ADU is allowed only as a conversion of existing living space. A JADU of up to 500 square feet must be carved out of the house, not the garage, and must still fit within the 45% floor area ratio.
City sourceWe handle the submissions, but if you want to ask something before we speak, Cupertino runs a Planning Division on planning@cupertino.gov and 408-777-3308. Requirements on this page are from the city's own planning pages and can change, so we re-check them per address.
ZIP codes we serve in Cupertino: 95014
Our Services
What we build in a Cupertino home.
Every project runs through the same design-build team, whether it is one room or the whole house.
ADU & Junior ADU Construction
Independent living spaces, from permits to final walkthrough.
View service →Complete Home Remodeling
Whole-home transformations, planned and built under one roof.
View service →Kitchen Remodeling & Design
Kitchens and living spaces shaped around your family's rhythm.
View service →Garage-to-Living Space Conversions
Underused garages become bright, functional rooms.
View service →Architectural Design & Planning
Design-build coordination, structural engineering, and permits.
View service →Landscape & Hardscape
Patios, walkways, driveways, retaining walls, drainage and grading.
View service →Our Work Process
How a Cupertino project runs.
Five steps, one point of contact, no surprises between the design table and the build.
Free consultation
Talk to us about your Cupertino project.
Tell us about the house and what you have in mind. We will come back with the questions that decide scope and budget, and what a realistic first step looks like.
(669) 732-7329
info@baycraftdb.com
Mon - Fri: 9AM - 6PM
Sun: 10AM - 4PM, Sat closed
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Areas We Serve
Beyond Cupertino.
South Bay / Peninsula · Santa Clara + San Mateo Counties