Welcome to Loona Construction inc, we specialize in building ADUs in the Bay Area. From start to finish, we make the process seamless and stress-free. With our experience and attention to detail, we’ve successfully completed ADU projects for countless homeowners – and we’re ready to do the same for you! We’ll guide you every step of the way. Let us help you transform your property with an ADU that adds value and space.
Get a free estimate!
Fill out the form, and our team will assist you with your ADU (Accessory Dwelling Unit) remodeling needs. Our usual response time is 10-20 minutes!
Choose Your City For More Detailed Information
Find detailed information about ADU construction services in your city. Choose your location to see how we can help transform your space.
Benefits of Building an ADU for Your Property in Bay Area
Affordable Construction: ADUs are cost-effective to build in Bay Area because they don’t require additional expenses for land, major infrastructure, structured parking, or elevators.
Income Source: Homeowners can generate a steady source of income by renting out an ADU.
Cost-Effective Materials: ADUs use wood frame construction, which is much less expensive than building new multifamily housing.
Family Proximity with Privacy: They allow extended families to live close to one another while still maintaining privacy.
Spacious Living: ADUs provide as much living space as many newly-built apartments or condos, making them suitable for couples, small families, friends, young people, and seniors.
Flexibility for Care: They offer independent living areas for family members or others, allowing seniors to stay nearby as they age and need more care.
What Is an ADU and Why Build One in the Bay Area?
An Accessory Dwelling Unit (ADU) is a small, self-contained home built on the same property as a primary residence. ADUs can be a backyard cottage, a garage conversion, or even an addition to your existing home. They are designed to provide extra living space, whether for family members, rental income, or personal use.
In the Bay Area, ADUs are especially popular due to the high cost of housing and the need for flexible living arrangements. By building an ADU, homeowners can:
- Add extra living space for family, guests, or tenants.
- Generate rental income to help cover mortgage costs.
- Increase property value with a versatile addition.
- Provide a housing option for seniors, young adults, or others needing an affordable home.
The Bay Area’s updated zoning laws and streamlined permit processes have made it easier than ever to build ADUs. With space at a premium, ADUs are a smart and sustainable solution to create more housing in your community.
ADU Design and Construction Process
Building an ADU in the Bay Area involves thoughtful planning and precision. Here’s a simple breakdown of the design and construction steps:
Getting permits and following the rules for building an ADU in the Bay Area might seem complicated, but it’s an important step. Each city and county has its own regulations, so understanding what’s required can help your project run smoothly.
The cost of building an ADU depends on factors like size, design, materials, and site conditions. On average:
If you’re not paying upfront, here are common ways to finance your ADU:
Home Equity Line of Credit (HELOC): Borrow against the equity in your home to fund your ADU.
Cash-Out Refinance: Refinance your mortgage to access funds for your project.
Construction Loans: Get a loan designed specifically for home improvement or new construction projects.
Local Incentives: Some Bay Area cities offer grants or low-interest loans to encourage ADU construction.
Building an ADU is a big investment, and choosing the right team makes all the difference. Here’s why homeowners across the Bay Area trust us to bring their ADU projects to life:
Expertise in ADUs: We specialize in designing and building ADUs, so we know all the ins and outs of the process, from permits to final finishes.
Seamless Process: We handle everything for you – design, permits, construction – so you can enjoy a stress-free experience.
Local Knowledge: We understand Bay Area regulations and have experience working with local building departments to get projects approved quickly.
Quality Craftsmanship: We take pride in building ADUs that are not only functional but also beautiful and durable.
Customized Solutions: Whether you need a rental unit, in-law suite, or extra living space, we’ll tailor the design to fit your needs and budget.
Reliable Team: Our experienced team is dedicated to staying on schedule, keeping you informed, and delivering excellent results.
Accessory Dwelling Units (ADUs) in the Bay Area, including costs, timelines, and benefits.
What is an ADU?
An ADU (Accessory Dwelling Unit) is a small, fully independent home built on the same property as a primary residence. It includes a kitchen, bathroom, and living space and can be detached, attached, or a converted part of your home, such as a garage or basement.
Why build an ADU in the Bay Area?
How much does it cost to build an ADU in the Bay Area?
How long does it take to build an ADU?
Do I need a permit to build an ADU in the Bay Area?
How big can an ADU be?
Can I rent out my ADU?
What types of ADUs can I build?
What are the parking requirements for an ADU?
Do ADUs require separate utility connections?
Can I build an ADU on a small lot?
What is the difference between an ADU and a JADU?
Do I need an architect to design my ADU?
Can I use my ADU for family members?
How do I get started with my ADU project?

Victor S.
Loona Construction installed a hardwood stairs for us. It was not an easy job, every single stair was of a different length and had to be adjusted for the shape of our walls. We are extremely happy with their punctuality and quality! Project was done on time, with the level of quality that we desired, and they recommended some improvements on top of that. They also helped us to procure the materials and consulted us about the nuances of different kinds.

Fangzhou X.
I hired Loona Construction to work on full remodeling of my house in Fremont. The project included popcorn ceiling removal, some wall repairs, new luxury vinyl planks flooring installation, baseboards installation and full interior painting including trims and doors. Eric and his team was professional and prompt, they delivered promised final results and I'm fully satisfied. Overall, I would highly recommend Loona Construction for anyone in need of house remodeling services. They are a good company that truly cares about their customers and their work.

Brett C.
Loona was very quick in responding and help coordinate a time that worked between tenants and the contractor in a timely manor. I highly recommend them.

Anusha t.
Build a beautiful dream swing for our family,Very detailed and the perfect . He is on time and listened patiently for our request and built it in no time .

Navneet Mahal
This construction company is the definition of excellence!! They take their time to make sure the end product is exactly what you want it to be!! I couldn't be happier with the work I got done. The service is amazing!! The value of the work is amazing! The wall had texture and everyone was looking for shortcuts to design the wall. But this company doesn't believe in short cuts. They made the wall smooth which took some time and then created the design to give it the look I wanted!! My daughter's nursery is looking amazing because of this wall.

Anusha Tammali
Loona Construction installed a hardwood stairs for us. It was not an easy job, every single stair was of a different length and had to be adjusted for the shape of our walls. We are extremely happy with their punctuality and quality! Project was done on time, with the level of quality that we desired, and they recommended some improvements on top of that. They also helped us to procure the materials and consulted us about the nuances of different kinds.






