Backyard Unlimited is a Tiny Home builder with a variety of models that allow you to add living space to your San Francisco property. Our Tiny Homes, also called Accessory Dwelling Units (ADU), Granny Flats, or In-Law Quarters, are an ideal way to quickly expand living quarters for you and your family in a way that complements your San Francisco lifestyle.

Looking for a tiny home price? Complete our quote form and we’ll get back to you with a price estimate.

Browse Our Tiny Home & ADU Models

These fully equipped Tiny Home and ADU models are popular in the San Francisco area, and each model can be customized according to your personal style and space needs.


Model:1 Bed Bathrooms:1 Sq. Feet:400

The Sierra is a 400 square foot, one-bedroom, studio-style ADU.

Starting at: $122,000


Model:1 Bed Bathrooms:1 Sq. Feet:600

The Cascade is a 600 square foot, one-bedroom, one bathroom ADU.

Starting at: $183,000


Model:2 Beds Bathrooms:2 Sq. Feet:735

A popular model that includes 2 beds, 2 baths, and full kitchen & living space in a small footprint.

Starting at: $224,175


Model:2 Beds Bathrooms:1 Sq. Feet:747

Popular in Northern California, the Klamath adds functionality and practicality in a warm, inviting space.

Starting at: $231,600


Model:2 Beds Bathrooms:1 Sq. Feet:750

The Linn is a 750 square foot, two-bedroom, one bathroom ADU.

Starting at: $228,750


Model:2 Beds Bathrooms:2 Sq. Feet:900

The Lassen is a 900 square foot, two-bedroom, two-bathroom ADU.

Starting at: $274,500


Model:1 Bed Bathrooms:2 Sq. Feet:910

Modoc maximizes useful space by combining a 376 sq. ft. ADU & 534 sq. ft. 2-car garage into one structure.

Starting at: $234,900


Model:3 Beds Bathrooms:2 Sq. Feet:1,100

The Tamalpais is an 1100 square foot, two-bedroom, two-bathroom ADU.

Starting at: $335,500


Model:3 Beds Bathrooms:3 Sq. Feet:1,200

The Shasta is an 1200 square foot, three-bedroom, three-bathroom ADU.

Starting at: $366,000

“The house has a really unique and cool design”

“I was looking for a really beautiful tiny house to put on my back deck for an extra bedroom. While backyard unlimited costs more than their competitors, the house has a really unique and cool design (with 7 windows and a slanted roof going up to 11 ft), they were very prompt and friendly, they delivered it 2 to 3 weeks early, and all of the people I spoke with were extremely respectful polite and professional. I cannot recommend them enough.”

Jennifer Holt (Google Review)

Featured Project: Pacifica, CA

This tiny home project in Pacifica, California is a 560 square foot ADU. This structure measures 20′ x 28′ and features 2 bedrooms, 1 bath, a full kitchen, and an attic for additional storage.


View Project Details

Designing & Quoting Your San Francisco Tiny Home

Designing and building your Tiny Home or Accessory Dwelling Unit is a multi-step process, and our team is here to support you at every stage. Most projects are completed in less than a year and include these basic steps:

Here are the basic steps in our ADU Design/Build process:

  1. Eligibility determination
  2. Free initial consultation
  3. 3D design rendering
  4. Drafting & engineering
  5. Permitting
  6. Construction
Design Process Details

Get Your Tiny Home Quote Started

Ready to take the first step in building your Tiny Home or ADU? Try our easy-to-use builder to select the features you want. Then, we’ll contact you to schedule an initial consultation to review your options and discuss pricing.

Build & Quote Your Tiny Home

Tiny Home Builder Serving San Francisco & the Bay Area

Backyard Unlimited builds unique living solutions in San Francisco and throughout the Bay Area, including Vallejo, Benicia, Cordelia, Napa, and Sonoma. A Tiny Home or ADU is a great way to add livable space to your property while also increasing your property’s value. It’s also an affordable way to enjoy all of the same amenities as a single-family home but at a cost that is significantly less.

Over the years, we have worked throughout the Los Angeles region, including Thousand Oaks, Malibu, Santa Monica, Burbank, Pasadena, Pomona, Lake Forest, Mission Viejo, Huntington Beach, Irvine, and San Clemente.

Frequently Asked Questions About Tiny Homes in San Francisco


How much does it cost to build a Tiny Home in San Francisco?

Building a Tiny Home or ADU in San Francisco typically costs in the range of $300,000 to $400,000, depending on the model, customizations, and furnishings. A base model that is modestly equipped can cost about $275,000.


How do I design a Tiny Home that meets San Francisco building code?

San Francisco requires that a licensed design professional sign and stamp your Tiny Home plans, and plans must comply with common limitations that include:

  • Unit must be a minimum of 220 sq ft with a minimum 7.5 ft ceiling height
  • In most residential neighborhoods, you must provide private, open space
  • Unit must have adequate natural light and ventilation
  • Unit must meet fire safety requirements for safe entry and exit

Do I have to obtain building permits from the City of San Francisco?

No. Permits for building your San Francisco Tiny Home are included in the cost. Once plans are completed and you sign the contract, we apply for your building permits through the local planning office in San Francisco. Permit processing times vary and can take up to 16 weeks for approval from the city.

Tiny Home Resources

Backyard Unlimited offers a variety of guides and resources to help you plan for building your Tiny Home or ADU. Here are a few you may find useful.

ADU Floor Plans, Blueprints & Pricing

Browse our ADU plans and find the layout, size and price that will best suit your needs and budget, or use our builder to customize your ADU.

Can an ADU Be Used as a Tiny House?

The short answer is yes, an ADU can meet the same requirements for living as a tiny house, but just as there are state and local laws that govern ADUs, there are also rules and regulations for tiny houses.

Does an ADU Increase Property Value?

Building a detached ADU is one of the best ways to add affordable living space to your property. Discover the math behind investing in an ADU in California.

Get a Quote

Get started on building your Tiny Home today with our online builder, and we’ll follow up with you to schedule an initial consultation to discuss your options and pricing.

Customize My Tiny Home