Add More Living Space, Boost Property Value.
Top-Rated ADU Company in Cupertino
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300+ five-star reviews
300+ five-star reviews
Avg 4.9
Avg 4.9
Avg 5.0
Avg 5.0
Adding a room to your home can be an excellent way to create more living space and increase the value of your property.
Voted #1 ADU Builders & Room Addition Company in the Bay Area.
Garage Conversions in the Cupertino.
Transform your unused garage into a stylish rental, home office, or guest suite.
Permits and inspections fully handled
Eco-friendly materials available
Over 100 ADU and garage conversions completed
Serving homeowners in Cupertino
ADU Additions by Eco Home Builders
Boost your property value with custom Accessory Dwelling Units (ADUs) — perfect for income, family, or extra space.
Designed by in-house architects
Fully code-compliant with all permits included
Green building options available
Easy and affordable financing solutions
In-Law Suites – Private, Comfortable, and Local
Give loved ones their own space with custom in-law suites tailored to your home.
Full-service design and construction
Sustainable and energy-efficient builds
From planning to final inspection – we handle it all
Local experts serving Cupertino
Bedroom & Guest Room Additions
Need more room? Add beautiful, functional bedrooms or guest suites to your home.
Experienced team of builders and designers
Permits, inspections, and plans all included
Flexible financing options to meet your budget
Special Promotion Ends Soon!
Take advantage of our special discount on your next
ADU remodeling project.
Our Valued Clients Who’ve Experienced the Difference
April and Vence
Ken and Pam
Jacob Brown
Top Rated Reviews By Locals!
FAQ
1. How long does an ADU project take?
2. Do I need architectural plans?
No need to hire anyone separately — Eco Home Builders provides full-service architectural planning, including permit-ready drawings and city approvals in Cupertino.
3. What types of permits are required for garage conversions or additions?
4. Can I finance my ADU or home addition?
Yes! We offer flexible financing options to make your project more affordable. Speak with our team to find a plan that fits your budget.
5. Are eco-friendly or energy-efficient options available?
Absolutely. Eco Home Builders specializes in sustainable construction, offering energy-efficient windows, insulation, solar options, and more to reduce your carbon footprint and save on utilities.
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