ADUs (accessory dwelling units) are self-contained homes on existing properties. California's 2020 laws simplified ADU permits statewide. Alpha ADU Solutions, a San Francisco-based ADU builder with 100+ team members, specializes in granny flats, garage conversions & in-law suites.

San Francisco ADU Solutions, San Francisco, CA

About San Francisco ADU Solutions

What Is an ADU and What Can It Offer?

An accessory dwelling unit (ADU) is an additional structure built on a property that already has a primary residence. These units go by many names — granny flats, in-law suites, guest houses, tiny homes, and casitas — but they all serve the same fundamental purpose: providing a self-contained living space on an existing lot.

ADUs come with their own entrance and typically include a bathroom, living area, and kitchen. They can be built as detached ADUs standing independently on the property, or as attached units such as a garage conversion. They are suitable for both single-family and multi-family lots, making them a flexible option for a range of property owners.

The reasons people pursue ADU construction vary widely. Some homeowners are looking for a backyard cottage to house family members, while others are interested in generating rental income or simply adding value to their property. The versatility of accessory dwelling units is a large part of why they have grown in popularity over recent years.

California ADU Laws and What They Mean for Property Owners

A package of new bills passed in California in January 2020 significantly changed the landscape for ADU construction. These laws operate at the state level, which means local city ordinances cannot override them. This has made the permitting and building process more straightforward for property owners across California.

Some of the key changes introduced by these laws include:

  1. ADU permits are automatically approved for single-family homes under qualifying conditions
  2. ADUs can be built on multi-family properties
  3. Cities are required to approve ADU applications within 60 days
  4. ADUs can be built within HOA communities without the previous complications
  5. ADUs built by 2025 do not require the owner to live on the property
  6. An ADU can be developed at the same time as the main unit

These legislative changes have made it considerably more accessible for California homeowners to pursue ADU construction, whether they are interested in a detached ADU builder project or a smaller JADU (Junior Accessory Dwelling Unit).

About Alpha ADU Solutions

Alpha ADU Solutions is an ADU builder based in San Francisco, California, with a presence across the state. Over the past six or more years, the company has grown to more than 100 team members operating out of six offices throughout California. Their focus is on delivering an ADU building experience that is straightforward and well-managed from start to finish.

As an experienced ADU contractor, Alpha ADU Solutions works with homeowners on a range of accessory dwelling unit projects. Their stated mission is to provide a refined building experience grounded in integrity and expertise. The team is described as professional and dedicated, with the goal of keeping the client's interests central throughout the process.

Alpha ADU Solutions has established itself as a recognized accessory dwelling unit builder in the San Francisco area, with close to a decade of experience in the ADU industry. For property owners in California looking to explore options such as a granny flat, in-law suite, or garage conversion, Alpha ADU Solutions represents a contractor with relevant local experience and a broad operational footprint.

Services

San Francisco ADU Solutions performs the following services

  • Permit Specialist
  • Construction

San Francisco ADU Solutions Reviews

Andrea Ashbrook

2025-09-02
"Wonderful experience and would definitely recommend to all my friends who could benefit from their services!"

Michael Tackett

2024-05-11
"I was nothing but delighted with the service they provided. I would recommend them to everyone. Good job guys. Five Stars from me"

Windie Pratt

2024-05-10
"Great company. CUSTOMER Service is outstanding. Came and got the job done always willing to listen amd take advice as well as give me exactly what i was loo king for . Thank you"

david manjarrez

2024-05-10
"Very happy with adu converted my 1 car garage into a 3 car garage and a 2 story 1 bedroom apt or guest house which I am in the process of renting out soon."

Cesar Leon

2024-05-10
"Great place great people"

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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