Housable ADU Project Case Study:

Detached ADU in Hayward, CA

Housable ADU Project Case Study:

Detached ADU in Hayward, CA

Project Scope

Project Details
Completed Project
ADU Type:
Detached Adu
ADU Size:
495 sq. ft., 2 bed, 1 bath
Project Location:
Hayward, CA
Project Timeline:
7 months
Project Cost:
Architectural Design Fees
Market Rate
Architecture Fees:
Percentage of Project Cost:
Housable Fees
Design + Permitting
ADU Permit Set:
Percentage of Project Cost:
Net Savings With Housable:

Goal: The property owner wanted to build a small, single-story ADU, under 500 square feet with two bedrooms and a living/cooking space.

Design Challenge: The property had setback requirements which limited layout options. The homeowner also wanted two full-sized bedrooms with a total footprint of under 500 square feet.

Process and Solution: The homeowner had a good idea of what they wanted in the final ADU and provided our team with a clear design concept. Our team used these specifications to design a new, detached ADU with two bedrooms, a modest and open kitchen/living/dining area, an attic, and a bathroom with a shower. The design maximized the usable space by using a cooktop in lieu of a full oven, and took advantage of the natural light with double glass doors.

This project took 7 months to complete and cost of $165,000, $4,175 was for Housable feasibility, design, and drafting services, which save the homeowner over $9,000 based on the going rate for architectural services.

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
Housable © 2021