Accessory Dwelling Unit Design in California: Affordable Quality Architecture
JH2 Architects specializes in accessory dwelling unit design throughout Southern California, creating affordable, high-quality ADUs for multigenerational living, rental income, and guest accommodations.
Our approach balances cost efficiency with thoughtful architecture. With simple, well-designed structures that maximize space while matching your main home's aesthetic. Whether you're considering a modern ADU, a traditional guest house, a California ranch style, or a coastal cottage, we offer architectural programs tailored to your site, budget, and lifestyle needs.
Waco ADU
San Diego, California
Completed 2018
1,200 sf
3 Bedrooms, 2 Bathrooms, Kitchen, & Living Room
Maximized bedroom count (3 bedrooms) per homeowner’s request. Simple affordable design with best efficient modular system 25’ x 49’. Easy to construct as simple Architectural/Structural well designed, open kitchen living space layout.
Detached ADU in the back yard. Access from alley road. ADU located in 2nd Floor in accessory building since it is in hillside site. Efficient tight 2 bedrooms with kitchen living room area for ocean view. ADU proposed to match with main modern architectural style. Simple affordable design.
San Diego, California
In Progress
700 sf
Coronado ADU
2 Bedrooms, 1 Bathroom, Kitchen, Living & Dining Room
Canterbury ADU
San Marino, California
In Progress
990 sf
2 Bedrooms, 1 Bathroom, Kitchen, Living & Dining Room
Maximized bedroom count (3 bedrooms) per homeowner’s request. Simple affordable design with best efficient modular system 25’ x 49’. Easy to construct as simple Architectural/Structural well designed, open kitchen living space layout.
Guest House ADU
California
In Progress
990 sf
Separate guest house for perfect hosting.
1 Bedroom, 1 Bathroom, Kitchen, Entertainment Room
ADU Project Lists in California
Located in San Diego, Los Angeles & Orange County
Waco ADU: 1,160 SF, 3 Beds, San Diego
Van Nuys ADU: 1,000 SF, 2 Beds, Van Nuys
Canterbury ADU: 986 SF, 2 Beds, San Marino
Genessee ADU: 1,046 SF, 1 Bed, Los Angeles
Coronado ADU: 688 SF, 2 Beds, San Diego