ADU Contractor · San Francisco, CA

Your San Francisco ADU, Built by Neighbors

Alpha ADU Solutions helps San Francisco homeowners add value and space with a new accessory dwelling unit.

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Alpha ADU Solutions
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ADU Contractor Specialists

Building Better Backyards in Our City

As San Francisco locals, we understand the unique character of each neighborhood, from the Victorian charm of the Mission District to the hillside views of Twin Peaks. We're not just contractors; we're your neighbors, dedicated to enhancing our community one ADU at a time. Our process starts with truly listening to your vision, ensuring your new space blends seamlessly with your home and the city's distinct vibe. We guide you through San Francisco's specific planning and building departments, making the journey straightforward and clear. You can expect a friendly face, honest advice, and a commitment to building a quality ADU that feels like it's always been there, designed for life right here in San Francisco.

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Our ADU Contractor Services

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Attached ADU

Attached ADU

An attached ADU is an additional living space built onto your existing home, sharing a wall and often utilities. This solution helps San Francisco homeowners expand their living area or create rental income right where they are.

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Detached ADU

Detached ADU

A detached ADU is a standalone structure separate from your main house, providing a complete living space with its own entrance, kitchen, and bathroom. This option offers maximum privacy and flexibility for your property in San Francisco, whether for family, rental income, or a dedicated workspace.

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Garage Conversion

Garage Conversion

Garage conversion transforms your existing garage into a fully functional living space, like an apartment, office, or studio, complete with plumbing and electrical. This process adds valuable square footage and potential rental income right here in San Francisco.

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ADU Permitting

ADU Permitting

ADU Permitting involves navigating San Francisco's specific building codes and zoning laws to get your Accessory Dwelling Unit approved. We handle all the paperwork and city communications to help you add value to your San Francisco home.

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ADU Design

ADU Design

ADU design from Alpha ADU Solutions helps San Francisco homeowners create custom plans for their accessory dwelling units. We work with you to draft a functional, beautiful space that fits right into your property and our unique city.

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ADU Engineering

ADU Engineering

ADU engineering involves creating the structural and civil plans for your accessory dwelling unit, ensuring it meets San Francisco's building codes and seismic requirements. This crucial step provides the blueprint for a safe, sound, and compliant ADU right here in our city.

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ADU Financing

ADU Financing

ADU financing involves helping San Francisco homeowners explore and secure the best loan options to fund their accessory dwelling unit project. We connect you with local lenders and programs that understand the unique market here.

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ADU Construction Management

ADU Construction Management

ADU Construction Management involves overseeing every detail of your Accessory Dwelling Unit build, from initial permits to the final touches. We handle scheduling, budgeting, and quality control, ensuring your project stays on track and within your budget right here in San Francisco.

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Junior ADU (JADU)

Junior ADU (JADU)

A Junior ADU (JADU) is a compact living unit, typically under 500 square feet, created within an existing single-family home's footprint, often using an existing bedroom and bathroom. This smart solution allows homeowners in San Francisco to add rental income or family space without expanding their home's physical size.

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ADU Site Assessment

ADU Site Assessment

Our ADU site assessment service in San Francisco evaluates your property's potential for an accessory dwelling unit, checking zoning, utilities, and site conditions. This initial step helps you understand what's possible and sets a clear path for your ADU project right here in the city.

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San Francisco's Local ADU Contractor Experts

Alpha ADU Solutions is proud to serve San Francisco, CA and the surrounding communities. Our reputation is built on honest work, clear communication, and results that hold up over time.

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Frequently Asked Questions

An ADU, or Accessory Dwelling Unit, is a secondary housing unit on a single-family or multi-family residential lot. They are popular in San Francisco because they offer a practical way to add housing density, provide rental income, or create space for family members in a city with high housing demand. San Francisco's progressive ADU policies also make it more feasible for homeowners to build them, helping to address the local housing crunch while maximizing existing property. Many homeowners use them to house extended family or generate extra income to offset high living costs.
Building an ADU in San Francisco typically takes between 12 to 18 months from initial design to final inspection, though this can vary. The longest phase is often the permitting process with the San Francisco Planning Department and Department of Building Inspection, which can take several months due to local regulations and review times. Construction itself usually takes 4-8 months, depending on the ADU's size and complexity. We work to streamline this process by preparing all necessary documentation and coordinating closely with city officials.
The average costs for building an ADU in San Francisco can range from $200,000 to $400,000 or more, depending on factors like size, finishes, and site conditions. This includes design fees, permit fees, material costs, and labor. Excavation can sometimes add to costs, especially on San Francisco's hilly terrain or if bedrock is encountered. We provide a detailed cost breakdown early in our process, helping you understand all potential expenses involved in your specific project right here in the city.
Yes, you absolutely need special permits to build an ADU on your property in San Francisco. The city has specific zoning ordinances and building codes that govern ADU construction, including requirements for setbacks, height, and parking. You'll need to submit plans to the San Francisco Planning Department for zoning review and then to the Department of Building Inspection for structural and safety approvals. We assist with navigating these local requirements, ensuring all necessary permits are secured before any construction begins, keeping your project compliant with city standards.
Yes, an ADU can significantly increase your property value in San Francisco neighborhoods like Noe Valley or the Sunset District. Adding a legal, habitable dwelling unit provides additional rental income potential or valuable living space, which is highly sought after in our dense urban environment. The return on investment for ADUs in San Francisco is often strong due to the city's high housing demand and property values. It's a smart investment that not only adds functional space but also boosts your home's overall market appeal and worth.

Proudly Serving San Francisco and the Surrounding Area

From San Francisco to the surrounding communities, we bring the same level of care and craftsmanship to every job — whether it's a quick repair or a full project.

Let's Build Something Great Together

Reach out today for a friendly, no-obligation chat about your ADU project.

Get Your Free Quote 415-749-9958