Best ADU Builders in San Francisco (2024)

Our annual ranking of top construction firms highlights the top companies in San Francisco based on their project volume over the past year, with a focus on relevance. This compilation is derived from permit and contractor information sourced from city, county, and state building departments through our partners at BuildZoom. For further information regarding data accuracy, please consult the note at the end of this article.

Construction data serves a variety of important functions for different players in the industry. For companies that supply materials and services to general contractors, this data can help them connect with their audience more effectively. By monitoring construction market trends, such as the start of new projects, these businesses can time their communications to align with when contractors are likely to need additional resources, making their outreach more relevant. Furthermore, by analyzing contractor data, suppliers can identify which contractors are expanding and tailor their efforts accordingly. Subcontractors also benefit from this information, as it allows them to reach out to general contractors they want to work with on specific projects. On another note, real estate developers and property owners can utilize this data to assess the skills and reliability of contractors and subcontractors, ensuring they choose qualified professionals for their projects. This can involve examining their building construction history to validate expertise and quality.

Done Right Builders & Remodeling

Address:
1825 De La Cruz Blvd, Santa Clara, CA 95050

Done Right Builders & Remodeling is a premier general contractor based in Santa Clara, with over 20 years of experience in transforming homes throughout the Bay Area. Known for their meticulous craftsmanship and personalized service, they have successfully completed hundreds of projects, ranging from kitchen remodels to comprehensive ADU conversions, solidifying their reputation as a trusted partner in home improvement. Their commitment to customer satisfaction is evident in their detailed consultation process, where they actively listen to clients’ needs and vision before tailoring each project to exceed expectations. The company is fully licensed, insured, and bonded, ensuring peace of mind for every client. Additionally, Done Right Builders takes pride in their robust compliance with local regulations, expertly handling permit acquisition to streamline the remodeling journey. With a dedicated team of skilled professionals and a focus on quality assurance, they guarantee that each project is executed with precision and care, achieving on-time delivery without compromising on craftsmanship. Their passion for excellence and innovative design solutions have made them a go-to contractor for homeowners looking to enhance the beauty and functionality of their spaces. Through their ongoing support and commitment to maintaining excellence long after project completion, Done Right Builders & Remodeling truly embodies their mission of transforming Bay Area homes, one dream at a time.

Data from the San Francisco Department of Building Inspection was reviewed by the General Contractors Magazine team to identify previous projects by Done Right Builders & Remodeling. In 2023, the company undertook a new detached ADU project spanning 518 sqft, with a budget of $150,000. Additionally, in 2024, they completed an $80,000 garage-to-ADU conversion project.

Level Up Home Remodeling

Address:
569 Clyde Ave, Mountain View, CA 94043

Level Up Home Remodeling is a distinguished contractor based in Mountain View, California, with over eight years of experience in the home improvement industry. Founded by Hillel Ellie Benizri and Nir Alkobi, the company blends a unique French aesthetic with American functionality, ensuring that each project is both practical and visually appealing. Their expertise spans a wide range of services, including kitchen and bathroom remodeling, custom builds, and accessory dwelling unit (ADU) conversions, all executed with meticulous attention to detail. Level Up Home Remodeling is particularly known for its seamless design-build approach, which facilitates effective project management and outstanding results. The team is dedicated to enhancing clients’ lives through transformative renovations, often bringing smiles to their faces with each completed project. With a commitment to excellence and customer satisfaction, the company has earned a reputation for delivering exceptional craftsmanship in every endeavor. Whether transforming interiors or creating stunning outdoor spaces, Level Up Home Remodeling consistently demonstrates its ability to elevate homes and fulfill clients’ visions. Their ongoing success in the industry reflects a passion for construction and design that inspires every member of their skilled team.

Data from the San Francisco Department of Building Inspection was reviewed by the General Contractors Magazine team to uncover previous projects completed by Level Up Home Remodeling. In 2024, the company undertook an attached ADU project measuring 433 square feet, with a budget of $400,000. Additionally, in 2023, they worked on an ADU build project valued at $301,435.

Rozen Home Builders Inc

Address:
718 W El Camino Ave, Sacramento, CA 95833

Founded in 2017, Rozen Home Builders Inc. boasts 15 years of experience in construction, specializing in both new builds and repairs/restorations. They pride themselves on their commitment to delivering a comprehensive client experience, which includes effective communication, meticulous budgeting, and high-quality craftsmanship, all while managing occupied job sites and multi-phase projects with ease.

The General Contractors Magazine team reviewed information from the San Francisco Department of Building Inspection to highlight previous projects undertaken by Rozen Home Builders Inc. In 2021, the company completed a garage ADU addition with a budget of $77,000, and in 2020, they also handled an ADU addition project valued at $96,000.

Atlas General Construction

Address:
37390 Cedar Blvd, Newark, CA 94560

Atlas General Construction is a seasoned contractor specializing in high-quality home construction and renovations, boasting over ten years of experience in the industry. Established with a dedicated team of engineers, architects, and project managers, the company is committed to delivering exceptional workmanship and unparalleled customer service. Their reputation for integrity and passion is evident in their extensive portfolio, which includes both residential and commercial projects across the Bay Area. As a BBB Accredited Business with an A+ rating, Atlas General Construction emphasizes quality, sustainability, and efficiency in every project. They offer a comprehensive range of services, from custom home builds to intricate ADU additions, ensuring that each client’s vision is realized with precision. The firm prides itself on its meticulous approach to project management, overseeing every phase from planning and design to final inspection. By utilizing top-tier materials and advanced techniques, Atlas General Construction consistently exceeds client expectations, aiming to create a legacy of excellence in the construction industry.

Data from the San Francisco Department of Building Inspection revealed past projects completed by Atlas General Construction. In 2024, a garage space was transformed with an ADU addition, resulting in a project valued at $555,469. Additionally, in 2022, Atlas General Construction undertook a detached ADU project, which amounted to $128,583.

Freemodel Inc

Address:
1325 Howars Ave, #310, Burlingame, CA 94010

Freemodel Inc. has established itself as a leader in hassle-free home renovations, transforming properties to maximize sale value. With years of experience, the company specializes in managing, designing, and financing pre-sale renovations, allowing homeowners to pay upon closing when their property sells. Their local project directors not only understand regional tastes but are also skilled designers who collaborate closely with agents and homeowners to create tailored solutions. Freemodel’s approach eliminates the typical barriers associated with remodeling, ensuring projects are completed efficiently and on budget. By overseeing every aspect of the renovation process, from coordinating contractors to handling payments, they provide a seamless experience for clients. The company’s flexibility means there are no arbitrary limits on project scope, empowering homeowners to pursue any renovation that enhances their property’s appeal. With a strong focus on customer satisfaction, Freemodel helps sellers achieve quicker sales and higher offers, making agents look like heroes in the process. Their commitment to quality and ease has made them a trusted partner in the real estate market across various regions, including Florida and California.

The General Contractors Magazine team examined records from the San Francisco Department of Building Inspection to identify past projects by Freemodel Inc. In 2023, the company successfully completed an ADU conversion project. Earlier, in 2022, they undertook an ADU construction project.

Promodeling Inc

Address:
10567 San Pablo Ave, El Cerrito, CA 94530

Promodeling Inc, founded by Guy Oren, is a premier remodeling and renovation firm with over 14 years of experience in construction management and interior design. With a mission to help homeowners realize their visions, the company has established itself as a one-stop shop in the San Francisco Bay Area and recently expanded into the San Diego market. Promodeling Inc. utilizes a streamlined three-step process—design, product selection, and construction techniques—to ensure projects are tailored to individual needs. Oren’s background in civil engineering and management complements his passion for design, allowing the team to deliver innovative and modern solutions. Comprising skilled project managers and designers, Promodeling Inc. excels in a range of services from ADUs and home extensions to kitchen and bathroom remodels. The company is recognized for its commitment to quality, customer satisfaction, and sustainability, prioritizing safe practices while minimizing environmental impact. With a diverse and talented team, Promodeling Inc. stands out in the industry, dedicated to transforming spaces into livable, stylish environments that enhance both comfort and value for homeowners.

Data from the San Francisco Department of Building Inspection revealed past projects undertaken by Promodeling Inc, according to the General Contractors Magazine team. In 2021, a new detached ADU project was completed by Promodeling Inc for $65,000. Additionally, in 2023, the company converted a garage into a 467-square-foot ADU for a project cost of $100,000.

Note: The data used to compile this list may not be complete based on the availability of permit data – collecting and consolidating this data is a time-intensive and difficult task. It may not be complete in all areas due to jurisdictional reporting requirements and the availability of data. Job values and permit fees should be taken as estimates rather than exact values, based on the most complete permit and contractor data available. Additionally, number of projects and typical job size may be updated per contractor request.

The time period for the data used for this ranking was the past 365 days, plus an additional 45 days to account for the average timeline of a building permit. If you have any suggestions on the data or see any corrections that you’d like to give feedback on, please fill out this form. For more insights on construction data outside that are not directly related to contractors, there are other resources available as well.