Housable ADU Project Case Study:

Attached Two Story Above Garage ADU in Monterey, CA

Housable ADU Project Case Study:

Attached Two Story Above Garage ADU in Monterey, CA



Project Scope


Project Details
Completed Project
ADU Type:
New Construction
ADU Size:
600 sqft, 1 bed, 1 bath
Project Location:
Monterey, CA
Project Timeline:
18 months

Goal: The property owner wanted to expand the existing garage and design an ADU above the existing garage with an exterior staircase for privacy.

Problem: Setbacks limited footprint expansion options and the height could not exceed 24’.

Housable Solution:The customer chose to expand the existing 18X21’ attached garage to 670 square feet by moving the rear and front walls, which doubled the size of the garage and allowed for a larger living area. The size increase respected the available space and utilities to minimize construction costs.


The final ADU included a bedroom, a separate living area, dining room, full kitchen, a single bathroom with a shower, and a standing washer-dryer set and is accessed via an exterior stairway. By having the ADU above the garage guests and residents were afforded more privacy with the largest windows facing away from the primary residence.


Unique Project Traits: The homeowner in this case chose to modify one of Housable’s existing designs.

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
City
State Zip code
Country