ADU Builder Livermore
Custom, High-Quality Accessory Dwelling Units
Are you looking to build an Accessory Dwelling Unit (ADU) in Livermore, 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 Livermore, 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 Livermore 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 Sunnyvale'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 Livermore
Below is an overview of ADU regulations in Livermore. If you need more details about how these rules apply to your property, contact us to get connected with an ADU expert.
Where ADUs Are Allowed
ADUs are typically permitted on residentially zoned properties, though exceptions may apply. Your property must include an existing or proposed single-family home or a multi-family building, such as a duplex, triplex, or apartment complex. Reach out to us to determine if your property qualifies for an ADU.
Minimum Lot Size
There are no minimum lot size requirements—any property, regardless of its size, may be eligible for an ADU.
Number of ADUs Allowed
Single-family homes can generally accommodate one or two ADUs. Multi-family properties may qualify for multiple ADUs, depending on the number of existing units and the type of ADU constructed. Get in touch with our team to find out how many ADUs your property can support.
Parking Requirements
Conversion and junior ADUs generally do not require additional parking. However, attached and detached ADUs typically require at least one parking space unless an exemption applies. Reach out to us for expert guidance on Livermore’s ADU parking regulations.
Featured Project
ADU Builder Livermore FAQs
How long does it take to build a secondary living unit in Livermore?
The process typically takes 8 to 12 months, depending on the design and site conditions. Most projects include 1–2 months for planning and design, 2–4 months for permits, and 4–6 months for construction. Homes in hillside areas or older neighborhoods may require additional time due to grading or utility constraints.
What’s the average cost to add a backyard cottage in Livermore?
Construction costs usually range from $450 to $500 per square foot. A 750 sq. ft. guest suite or granny flat might start around $340,000, while larger units can exceed $475,000, especially if high-end finishes or detached construction is involved. Other expenses include permit fees, site prep, and utility work.
Can I connect utilities from the main home to the new unit?
Yes. In most cases, your compact home can share water, sewer, and electrical connections with the primary residence. If you plan to rent the space or want more control over usage, separate meters can be installed. Electrical panel upgrades may be necessary for older properties.
Are there incentives for green or energy-efficient construction?
Yes. Livermore residents may qualify for BayREN rebates, solar energy credits, and incentives for electric vehicle charging equipment and energy-efficient appliances. All new units must comply with California Title 24 building standards, and those under 750 sq. ft. are typically exempt from certain impact fees.
What are the benefits of adding a compact home to my property?
These small-scale homes offer flexible space for extended family, caregivers, guests, or renters. They also provide a smart way to generate passive income or create multigenerational living arrangements—all without leaving your current neighborhood.
Is there strong interest in building in-law units in Livermore?
Yes. With a tight housing market and high demand for rentals, many homeowners are turning to garage conversions, backyard homes, or standalone studios to make the most of their property. Livermore’s larger lot sizes make these projects especially viable.
What design styles are popular locally?
Livermore homeowners often choose ranch-inspired cottages, modern farmhouse units, or energy-efficient studios with open floor plans, vaulted ceilings, and natural light. Detached units and converted garages are among the most requested layouts.
Where can I find help navigating the process?
The City of Livermore Community Development Department provides helpful tools like zoning maps, design guidelines, and permit checklists online. You can also set up a pre-application meeting to discuss your site’s specific requirements.
How do these additional dwellings impact neighborhoods?
When built to code, these homes add gentle density without altering the overall look of residential areas. Livermore enforces standards for height, privacy, and setbacks to ensure that new units complement existing homes.
Do I need to provide more parking for a second unit?
In many cases, no extra parking is needed, especially if the space is within ½ mile of public transportation or part of a converted garage or basement. If required, you may need to add one off-street parking space, depending on your lot size and layout.
Service Areas
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