Housable ADU Project Case Study:

Garage Conversion in Bell Canyon, CA

Housable ADU Project Case Study:

Garage Conversion in Bell Canyon, CA

Project Scope

Project Details
Completed Project
ADU Type:
Garage Conversion
ADU Size:
574 sqft, 1 bed, 1 bath
Project Location:
Bell Canyon, CA
Project Timeline:
10 months

Goal: The property owner wanted to convert the existing garage into a media room that could also be used as an ADU, and build a new garage attached to the existing media room.

Design Challenge: The property was located within a fire hazard area as well as a Homeowner's Association so required additional design standards. The design had a wide ceiling span and the owner did not want trusses or excessively long ceiling joists.

Process and Solution: The customer chose to convert the existing attached garage to a simple studio with a bathroom and efficiency-kitchen. ADU access was through a separate rear door and a shared hallway attached to the primary home which also accessed the new, three-car garage.

The homeowner was a contractor and built the project themselves. They also provided significant design input regarding the new roof structure of the new garage. To increase the space within the garage the homeowner-builder decided to install the ceiling joists at 1/3 the roof height which reduced the needed roof joist length and eliminated the need for trusses which are costly and difficult to procure.

The final ADU included a living area, a small kitchen, and a bathroom with a full bathtub. To save space, a microwave was installed in lieu of a larger range.

Unique Project Traits: The homeowner was the builder for this project and designed a unique roof-joist solution to reduce the cost of construction.

Project Layout:

See an early ADU Design for the project below. Customers may provide mark ups to request changes and confirm information about their project throughout the process.

View another project case study...

California's ADU Marketplace

To get started, confirm what you can build on your property with a free ADU Property Report:

Street address
State Zip code