
ADU Builder Emeryville
Custom, High-Quality Accessory Dwelling Units
Are you looking to build an Accessory Dwelling Unit (ADU) in Emeryville, 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 Emeryville, 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 Emeryville 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
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

Our Services and Expertise
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 Emeryville
Below is an overview of ADU regulations in Emeryville. 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 generally permitted on residentially zoned properties, though some 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 whether your property qualifies for an ADU.
Minimum Lot Size
There are no minimum lot size restrictions—any property, regardless of its dimensions, may be eligible 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 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 usually need at least one parking space unless an exemption applies. Reach out to us for expert advice on Emeryville’s ADU parking regulations.
Featured Project
ADU Builder Emeryville FAQs
How long does it take to build a secondary unit in Emeryville?
From planning to move-in, the process usually takes 8 to 12 months. That includes 1–2 months for design, 2–4 months for city approvals, and 4–6 months for construction. Projects with more custom features or complex site conditions—like tight urban lots—may need a little more time.
What’s the typical cost to add a compact home on my property?
Construction costs in Emeryville average between $475 and $525 per square foot, depending on layout, finishes, and whether you're building new or converting a garage or other space. A 750 sq. ft. backyard unit may start around $375,000, with larger or high-end designs exceeding $500,000. Be sure to budget for permits, utility work, and site prep as well.
Can the new living space share utilities with the main home?
Yes. These homes usually connect to the existing water, sewer, and electrical systems. That said, you may consider installing separate meters if you plan to use the space as a rental. For older homes, electrical upgrades are often required to meet code and power needs.
Are there sustainability rebates available for these projects?
Yes. Emeryville residents can take advantage of BayREN incentives, solar rebates, and energy efficiency programs for upgrades like EV chargers and high-performance appliances. All new dwellings must meet California’s Title 24 energy code, and smaller units under 750 sq. ft. are typically exempt from impact fees.
What are the main reasons people build in-law units or backyard cottages?
These dwellings provide flexible living space for family members, renters, or home offices. They're especially valuable in Emeryville, where lot sizes are small and housing is in high demand. Adding a second unit allows homeowners to make the most of limited space while supporting affordable living options.
Is there strong demand for these types of units in Emeryville?
Yes, demand is growing—driven by rising rents, limited housing supply, and the city's compact urban layout. Many homeowners are using these dwellings to support multi-generational families, create rental income, or design work-from-home spaces that are fully independent from the main house.
What kinds of designs are most popular?
Urban-friendly layouts are common, including modern studio units, garage conversions, and minimalist garden flats. Homeowners often prioritize energy efficiency, creative storage, and indoor-outdoor access, especially when space is limited.
Where can I get help understanding local requirements?
The Emeryville Planning Division provides everything from zoning details and development standards to permitting checklists online. You can also contact the planning staff for guidance specific to your property or to set up a pre-application consultation.
Will adding a second home change the look of the neighborhood?
Not likely. Emeryville has standards to ensure new dwellings are scaled appropriately and match the surrounding architecture. These compact homes increase housing options while preserving neighborhood character, especially in mixed-use and residential zones.
Do I need to provide extra parking?
Not necessarily. If the new home is within ½ mile of public transit, part of a converted structure, or meets certain state conditions, no additional parking is required. In other cases, one off-street space may be needed.
Service Areas
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