ADU Builder Morgan Hill
Custom, High-Quality Accessory Dwelling Units
Are you looking to build an Accessory Dwelling Unit (ADU) in Morgan Hill, 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 Morgan Hill, 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 Morgan Hill 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 Morgan Hill'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 Morgan Hill
Below is an overview of ADU regulations in Morgan Hill. If you need more information about 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 some exceptions may apply. To qualify, your property must have an existing or planned single-family home or a multi-family building, such as a duplex, triplex, or apartment complex. Contact us to verify whether your property is eligible for an ADU.
Minimum Lot Size
There are no minimum lot size restrictions—any property, regardless of its dimensions, may qualify for an ADU.
Number of ADUs Allowed
Single-family homes can typically accommodate one or two ADUs. Multi-family properties may be eligible for multiple ADUs, depending on the number of existing units and the type of ADU being constructed. Get in touch with our team to determine how many ADUs your property can support.
Parking Requirements
Conversion and junior ADUs generally 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 requirements in Morgan Hill.
Featured Project
ADU Builder Morgan Hill FAQs
How long does it take to build a backyard cottage or in-law unit in Morgan Hill?
Most projects take between 8 and 12 months to complete. This includes 1–2 months for design and planning, 2–4 months for permit approvals, and 4–6 months for construction. Homes in rural areas or on larger lots may need extra time for grading, utility access, or septic upgrades.
What’s the average cost to build a secondary living space in Morgan Hill?
Building costs typically range from $450 to $500 per square foot, depending on layout, finishes, and site conditions. A 750 sq. ft. guest house or granny flat may start at $340,000, with custom or larger builds reaching $500,000 or more. Don’t forget to budget for permit fees, utility work, and landscaping.
Can the new space use existing utility connections?
Yes. Most compact homes can connect to the main house’s water, sewer, and electrical systems. If you’re planning to rent it out or want utility tracking, you might consider installing separate meters. Older homes may also require electrical or plumbing upgrades.
Are there energy-efficiency or green building rebates available?
Yes. Homeowners in Morgan Hill can take advantage of BayREN incentives, solar installation programs, and rebates for energy-efficient appliances and EV charging equipment. New units must meet California’s Title 24 energy standards, and homes under 750 sq. ft. are typically exempt from impact fees.
Why are people building guest cottages or small secondary units?
These additional homes offer flexible space for extended family, caregivers, or rental income—all while keeping loved ones close or providing privacy for long-term visitors. Many also use them for home offices, studios, or aging-in-place setups.
Is there strong demand for these types of homes in Morgan Hill?
Yes. With Morgan Hill’s mix of suburban neighborhoods and larger rural properties, many residents are choosing to build garage conversions, garden suites, or detached guest quarters to make full use of their property.
What design styles are most common in the area?
Popular styles include modern farmhouses, Craftsman bungalows, and Mediterranean-inspired guest houses. Most designs prioritize open layouts, natural light, outdoor space, and energy efficiency—often matching the look and feel of the main home.
Where can I find help with planning and permits?
The City of Morgan Hill’s Development Services Department provides resources online, including permit guides, zoning maps, and design requirements. You can also set up a pre-application meeting to explore your property’s potential and streamline the approval process.
Will a secondary home affect the neighborhood’s appearance?
Not significantly. Morgan Hill has clear regulations for setbacks, height, and design compatibility to ensure that compact dwellings maintain the area’s residential character while expanding housing options.
Is extra parking required for the new living space?
It depends. If your home is within ½ mile of public transportation or you’re converting an existing garage, no additional parking is typically required. In other cases, one off-street space may be necessary based on the project’s location and configuration.
Service Areas
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