ADU Builder Newark
Custom, High-Quality Accessory Dwelling Units
Are you looking to build an Accessory Dwelling Unit (ADU) in Newark, 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 Newark, 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 Newark 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 Newark
Below is an overview of ADU regulations in Newark. 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 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 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 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 Newark’s ADU parking regulations.
Featured Project
ADU Builder Newark FAQs
How long does it take to build a backyard home in Newark?
The process typically takes 8 to 12 months, depending on the complexity of the project. This includes 1–2 months for design, 2–4 months for permit approval, and 4–6 months for construction. Homes that require grading or major utility work may take longer.
What’s the average cost to add a compact living space?
Most secondary units in Newark cost between $450 and $500 per square foot. A 750 sq. ft. guest suite or in-law cottage might start around $340,000, while larger or high-end builds can go beyond $475,000. You'll also want to factor in permit fees, utility upgrades, and site prep.
Can I connect the new unit to existing utilities?
Yes. It’s common for these dwellings to share water, sewer, and electrical lines with the main house. If you plan to rent the space, you might choose to install separate meters. For older properties, electrical panel upgrades may also be required.
Are there incentives for building sustainably?
Yes! Newark residents have access to BayREN energy efficiency rebates, as well as incentives for solar panels, EV chargers, and high-efficiency appliances. All new units must meet California Title 24 energy standards, and homes under 750 sq. ft. are typically exempt from impact fees.
Why are more homeowners adding small second units?
Backyard cottages and similar spaces offer a flexible solution for family housing, rental income, or dedicated work-from-home areas. They allow property owners to maximize space and add value without major changes to their neighborhood’s layout.
Is there demand for these types of homes in Newark?
Absolutely. With limited housing stock and increasing costs, more people are turning to granny flats, converted garages, and guest cottages to meet needs for multigenerational living or passive income through long-term rentals.
What styles are common for these compact homes?
Popular designs in Newark include modern bungalows, energy-efficient studios, and garage-to-apartment conversions. Open layouts, large windows, and private entries are frequently requested features to make the most of smaller spaces.
Where can I find local information about permits and zoning?
The City of Newark’s Community Development Department provides helpful guides, zoning maps, design requirements, and permit checklists on its website. You can also speak with planning staff for property-specific questions.
Do these units change neighborhood character?
Not when designed thoughtfully. Newark has clear standards for setbacks, height limits, and privacy to ensure secondary dwellings fit in with existing homes. These compact additions offer gentle growth while keeping community aesthetics intact.
Is additional parking required for the new space?
It depends on your location. If the home is within ½ mile of public transportation or part of a garage conversion, no extra parking is needed. In other cases, you may need to provide one off-street parking space.
Service Areas
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