ADU Builder Gilroy
Custom, High-Quality Accessory Dwelling Units
Are you looking to build an Accessory Dwelling Unit (ADU) in Gilroy, CA?
Keep Your Family Close with a Custom ADU
Whether you want to create a comfortable space for aging parents, independent living for adult children, or a guest house for extended family, ADU Builders Group is your trusted ADU builder in Gilroy, California.
With over 20 years of experience, we specialize in designing and constructing high-quality, custom-built ADUs that strengthen family bonds, enhance multigenerational living, and improve your lifestyle while ensuring compliance with local building regulations.
Build with Peace of Mind
We are the only ADU company in Gilroy that offers a three (3) years project warranty on our services with complementary annual project inspection. All of this on top of the ten (10) years warranty on structural components.
✔ 3 Years Project Warranty
✔ Complimentary Annual Inspection
✔ 10 Years Structural Warranty
Why Choose Us?
1. Peace of Mind with Industry-Leading Warranties
✅ 3 Years Project Warranty – We stand by our craftsmanship, ensuring any issues within the first three years are addressed promptly and professionally.
✅ Free Annual Inspection – Our commitment to quality extends beyond project completion, we provide a free annual inspection, for the first three years after project completion, to ensure your ADU remains in excellent condition.
✅ 10 Years Structural Warranty – Our ADUs are built to last, and we back them with a decade-long structural warranty, giving you confidence in the longevity of your investment.
2. Expert Guidance & Hassle-Free Process
✅ Permitting & Compliance Experts – Navigating Gilroy's ADU regulations can be complex, but our experienced team ensures a smooth approval process, handling all paperwork and city requirements to prevent costly delays.
✅ 20+ Years of Construction Expertise – With decades of expertise in the construction industry and a dedicated focus on ADUs for over five years, we bring the knowledge, efficiency, and craftsmanship necessary to deliver high-quality results every time.
✅ Fast & Efficient Construction – Our streamlined process and skilled project management ensure your ADU is completed on time without unnecessary disruptions to your daily life.
3. Superior Craftsmanship & Custom Designs
✅ Aging-in-Place & Accessibility Features – Our ADUs are designed with the future in mind, incorporating accessibility features such as wider doorways, step-free entrances, and senior-friendly layouts for long-term convenience.
✅ Tailored Solutions for Every Home – Every family’s needs are unique, which is why we create custom ADU designs that maximize space efficiency, match your home’s aesthetics, and fit your lifestyle.
✅ High-Quality Materials & Precision Engineering – We use only top-tier materials sourced from our trusted, high-quality suppliers, ensuring that your ADU is durable, safe, and built to last for generations.
4. A Lifestyle Solution for Your Family's Needs
✅ Keep Loved Ones Close – Give elderly parents or adult children a private yet nearby living space, ensuring family members stay connected while maintaining their independence.
✅ Multigenerational Living Made Easy – Whether it's providing a comfortable home for aging parents or giving young adults a head start, our ADUs foster a supportive and practical living arrangement.
✅ Enhance Your Home’s Functionality – More than just extra space, an ADU can serve as a dedicated home office, personal gym, creative studio, or even a guest house for visiting relatives and friends.
About Us
Partners and Affiliations
ADU Builders Group Inc.
ADU Builders Group is a local, family-owned company dedicated to providing innovative solutions to California’s housing crisis, with passion for helping multigenerational families. Having high regards to family-oriented values, our work reflects a deep commitment to creating practical, high-quality custom ADUs that bring loved ones closer while respecting privacy and independence. With heart, craftsmanship, and a focus on community, we build homes that inspire and unite.
✔ Proudly Local
✔ Family-Owned
✔ Licensed and Insured
A Partner & Sister-Company of
Imagine Unique Remodels
Our Services and Expertise
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What's The Best Type of ADU for You?
Our Process
Consult with our ADU Experts
1
To start, discuss your needs, goals, and vision for your ADU with our experts. Start by having a phone consultation with us at (408) 413-3373. We'll set your schedule for the in-person meeting during the call. You'll receive expert recommendations and estimate for your ADU during the consultation phase at no cost.
2
Design with our Architect
Need to customize your ADU based on your needs and requirements? Design your own ADU and turn your ideas into an architectural plan with our Architect.
4
Construct & Pass Inspections
Our Project Managers will be in constant communication with you during construction and will ensure that your projects pass all inspections.
3
Obtain Permits Effortlessly
Our Liaison Officer will take care of the permits for you and work with the city to ensure that all paperworks are in place quickly and efficiently.
5
Enjoy and Maintain your ADU
Live the lifestyle you want and be worry-free. We'll continue to provide support and care to your project with our warranties and annual project inspection.
Local ADU Regulations in Gilroy
Below is an overview of Gilroy’s ADU regulations. If you need more details on how these rules apply to your property, reach out to us to connect with an ADU expert.
Where ADUs Are Allowed
ADUs are generally permitted on properties zoned for residential use, although some exceptions may apply. Your property must include an existing or planned single-family home or a multi-family building, such as a duplex, triplex, or apartment complex. Get in touch with our team to verify whether your property is eligible for an ADU.
Minimum Lot Size
There are no minimum lot size requirements—any property, regardless of its dimensions, may qualify for an ADU.
Number of ADUs Allowed
Single-family homes can typically have one or two ADUs, while multi-family properties may be eligible for multiple ADUs depending on the number of existing units and the type of ADU being constructed. Contact us today to find out how many ADUs your property can accommodate.
Parking Requirements
Conversion and junior ADUs generally do not require additional parking. However, attached and detached ADUs typically need at least one parking space unless an exemption applies. Reach out to us for expert guidance on ADU parking requirements in Gilroy.
Featured Project
ADU Builder Gilroy FAQs
How long does it take to build an ADU in Gilroy?
The ADU process in Gilroy takes 8 to 12 months, with design (1-2 months), permitting (2-4 months), and construction (4-6 months). The city has a streamlined permitting process, but variances or environmental reviews may add time.
What is the average cost to build an ADU in Gilroy?
Building an ADU in Gilroy costs $450 to $475 per square foot. A 500 sq. ft. unit costs around $225,000+, while a 1,000 sq. ft. ADU may exceed $450,000. Additional costs include permit fees ($5,000 - $15,000) and utility upgrades ($10,000+).
Do I need separate utilities for my ADU in Gilroy?
Gilroy allows shared utilities, but separate meters may be required for rental units. Homes on septic systems may need upgrades or inspections to meet ADU requirements.
Are there sustainability incentives for ADUs in Gilroy?
Yes, Gilroy offers solar rebates, EV charger incentives, and energy-efficient appliance discounts. ADUs under 750 sq. ft. are exempt from impact fees.
How do ADUs benefit the Gilroy community?
ADUs create affordable housing, increase property value, and provide rental income or multigenerational living solutions for families.
Is there a high demand for ADUs in Gilroy?
Yes, demand is rising as families seek rental income, aging-in-place solutions, and guest housing in a growing market.
What are the latest ADU design trends in Gilroy?
Popular designs include modern farmhouse styles, open floor plans, and drought-tolerant landscaping to match Gilroy’s suburban and rural settings.
Where can I find local resources for ADU development in Gilroy?
The Gilroy Planning Department provides ADU zoning, permitting information, and guidelines online and at City Hall.
How do ADUs impact neighborhoods in Gilroy?
ADUs help increase housing supply while maintaining Gilroy’s suburban character. The city enforces height, setback, and design regulations to ensure compatibility.
What are the parking requirements for an ADU in Gilroy?
One off-street parking space is required unless the ADU is near public transit or part of a garage conversion.
Service Areas
Want to build your own ADU but don't know how to start?
Consult with Us Now
By requesting a callback using our form.