ADU Builder Los Gatos
Custom, High-Quality Accessory Dwelling Units
Are you looking to build an Accessory Dwelling Unit (ADU) in Los Gatos, 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 Los Gatos, 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 Los Gatos 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 Los Gatos' 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
.jpeg)
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 Los Gatos
Below is an overview of Los Gatos' ADU regulations. For more specific 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, though 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. Contact us to confirm whether your property qualifies for an ADU.
Minimum Lot Size
There are no minimum lot size requirements—properties of any size may be eligible for an ADU.
Number of ADUs Allowed
Single-family homes can typically accommodate one or two ADUs, while multi-family properties may allow multiple ADUs depending on the number of existing units and the type of ADU being built. Get in touch with our team to determine how many ADUs your property can support
Parking Requirements
Conversion and junior ADUs typically do not require additional parking. However, attached and detached ADUs usually need at least one parking space unless an exemption applies. Reach out to us for expert advice on ADU parking regulations in Los Gatos.
Featured Project
ADU Builder Los Gatos FAQs
How long does it take to build a guest cottage or in-law unit in Los Gatos?
Most homeowners can expect the full process to take 8 to 12 months, including 1–2 months for design, 2–4 months for city review and permits, and 4–6 months for construction. Properties located in hillside zones or historic neighborhoods may require additional review, extending the timeline.
What’s the average cost to build a backyard home in Los Gatos?
Costs typically range from $450 to $500 per square foot, depending on your design, finishes, and site conditions. A 750 sq. ft. secondary suite might cost around $340,000 or more, while a larger or fully customized unit could exceed $500,000. Be sure to account for permit fees, utility upgrades, and landscaping.
Can the new unit share utilities with the main residence?
Yes. These small-scale dwellings often connect to the existing water, sewer, and electric systems. If you're planning to rent the unit or want to track usage separately, installing individual meters may be beneficial. For older homes, electrical or plumbing upgrades might be needed.
Are there green building rebates or energy incentives available?
Yes. Los Gatos residents can access BayREN energy efficiency programs, solar incentives, and rebates for EV charger installations and efficient appliances. All new construction must meet California Title 24 energy codes, and units under 750 sq. ft. are often exempt from impact fees.
Why are homeowners adding compact homes or granny flats?
These smaller dwellings offer flexible options for family members, caregivers, or long-term guests—or even serve as private offices or creative studios. They also provide a path to generating passive income without changing the main home’s footprint.
Is there strong interest in secondary units in Los Gatos?
Yes. With high housing costs and limited inventory, many residents are building detached cottages, garage conversions, or studio suites to meet their evolving needs—whether for multigenerational living or added rental opportunities.
What types of designs are popular locally?
Los Gatos homeowners often choose charming cottages, modern farmhouses, or Mediterranean-style guest houses that reflect the area's character. Features like open layouts, large windows, smart tech, and private outdoor space are frequently requested.
Where can I find guidance on planning and permits?
The Town of Los Gatos Community Development Department provides detailed resources on zoning requirements, design guidelines, and permit checklists online. Staff are available to help during pre-application meetings to ensure your project fits within local standards.
Do small second homes change the neighborhood’s look or feel?
Not when they’re thoughtfully designed. Los Gatos enforces setback, height, and design compatibility rules to make sure new additions blend into the neighborhood. These structures provide low-impact housing that complements the community.
Will I need to add extra parking?
Possibly. If your unit is within ½ mile of public transit, or part of a garage or basement conversion, you may be exempt from adding new parking. Otherwise, one off-street space may be required depending on the property’s layout.
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.