Loona Construction Inc. is a San Francisco ADU contractor specializing in detached ADUs, garage conversions, attached ADUs, and JADUs. They handle design, permitting, and construction, helping homeowners add rental income or family housing.

Loona Construction Inc. – ADU Contractor in Newark, CA

About Loona Construction Inc.

Loona Construction Inc. – ADU Contractor in San Francisco

Loona Construction Inc. is a construction company based in the San Francisco area that specializes in building Accessory Dwelling Units (ADUs). They work with homeowners through the entire process, from initial planning to project completion, handling design, permitting, and construction.

An Accessory Dwelling Unit (ADU) is a self-contained residential unit built on the same property as a primary residence. This can take several forms, including a detached backyard cottage, a garage conversion, or an addition attached to the existing home. Each unit typically includes its own kitchen, bathroom, and living space, making it fully independent.

Why Homeowners in San Francisco Build ADUs

San Francisco's housing market makes ADUs a practical option for many property owners. Updated zoning laws and a more streamlined permitting process have made it more accessible to build one. There are several reasons homeowners choose to add an ADU to their property:

  1. Rental income: An ADU can be rented out to generate a steady additional income stream.
  2. Family housing: It provides a private living space for extended family members, including aging parents or young adults.
  3. Property value: Adding a functional, independent unit can increase the overall value of a property.
  4. Cost-effective construction: ADUs typically use wood frame construction and don't require expenses like structured parking, elevators, or new land acquisition.
  5. Flexible living space: They offer comparable square footage to many newly built apartments, suitable for couples, small families, or seniors.

Financing options for ADU construction include a Home Equity Line of Credit (HELOC), a cash-out refinance, construction loans, or local grants and low-interest loan programs that some municipalities offer to encourage ADU development.

Loona Construction's ADU Services

Loona Construction Inc. manages the full scope of ADU projects, including design coordination, permit applications, and on-site construction. Their familiarity with San Francisco's local building regulations and permit processes is a practical advantage for homeowners navigating what can otherwise be a complex approval process.

The types of ADU projects they work on include:

  1. Detached ADUs – standalone backyard cottages or casitas built separately from the main home
  2. Garage conversions – converting an existing garage into a livable accessory dwelling unit
  3. Attached ADUs – additions connected to the primary residence
  4. JADUs (Junior Accessory Dwelling Units) – smaller units created within the existing footprint of a home

The cost of building an ADU varies depending on factors such as size, design complexity, materials chosen, and site-specific conditions. Loona Construction works with clients to understand these variables before the project begins.

For homeowners in San Francisco looking to add living space, generate rental income, or accommodate family members, Loona Construction Inc. offers ADU contracting services with local knowledge and hands-on project management from start to finish.

Services

Loona Construction Inc. performs the following services

  • Architecture & Design
  • Permit Specialist
  • Construction
  • Financing & Loans
  • Finishing & Fit-out

Loona Construction Inc. Reviews

Amanat Murzaliev

2025-09-25
"Great experience with Loona Construction, especially Ed and Eric. They helped me with literally everything on my project: design, plans, engineering, permits, inspections, materials. Couldnt be more happier how easy it was to work with them and how the project turned out. Highly recommend-5 stars."

isaac ramos

2025-09-19
"Over the past year, my family has worked with Loona Construction and Eric, our General Contractor, on several projects. We started with a kitchen and bathroom remodel and were so impressed with the quality and professionalism that we trusted them with larger projects, including removing a load-bearing wall to open up our space and even building an ADU. Owning an older home means unexpected issues always come up, but Eric and his team never left us to figure things out alone. They were responsive, supportive, and always had solutions. Each project reinforced that we made the right decision hiring them. I couldnt be happier with the results and the service we received. Well definitely be calling Loona Construction for future projects, and I highly recommend them to anyone in need of remodeling or construction work."

Sandeep M

2024-02-04
"Loona construction and Eric were amazing with their work and professionalism. Found them via thumbtack, and they built our living room wall electric fireplace, sonos and tv mount and installed in-ceiling projector making our home look amazing! see pictures. Eric was very professional, responsive, quoted reasonable prices and completed the work with quality on time and cleaned up very well after the job. They completed all the work to our satisfaction and I highly recommend them for your home needs."

Navneet Mahal

2024-01-11
"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

2023-10-20
"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 ."

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Specifics

Opening hours

Monday 9:00AM - 5:00PM
Tuesday 9:00AM - 5:00PM
Wednesday 9:00AM - 5:00PM
Thursday 9:00AM - 5:00PM
Friday 9:00AM - 5:00PM
Saturday 9:00AM - 5:00PM
Sunday 9:00AM - 5:00PM

Location

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