Portfolio

ADU Projects

Design and drafting work supporting additions and Accessory Dwelling Units across California.

Permit set cover sheet for a Huntington Beach residential addition

Residential Addition

Roof Garden Addition

Huntington Beach, CALocation
Roof garden + access stairsScope

An innovative addition to an existing structure, topped with a roof garden. The design had to be fully water-resistant to protect the structure below, and the access stairs had to satisfy city regulations without compromising the architecture. Our answer was a prefabricated staircase that met every city standard, became an architectural centerpiece — and cost less than a conventional staircase.

3D interior rendering, San Jose residence

Two-Story ADU

ADU with Master Bedroom Addition

San Jose, CALocation
Master bedroom + full bathProgram
EV charging + solarEco Features

A two-story ADU adding a master bedroom with full bath. Integrating the existing beams and columns into the new addition demanded careful structural planning, and the roof design had to preserve structural integrity around the new layout. Designed with eco-friendly features — an EV charging port and solar panels — qualifying the project for federal and state green-energy incentives.

Drawing Samples

Process

Feasibility

We review your lot, zoning, and setbacks to confirm what's buildable.

Design

Custom floor plans and elevations tailored to your property and goals.

Permitting

Permit-ready drawings submitted and tracked through plan check.

Construction Management

Contractor coordination and budget tracking through completion.

Ready to build your ADU?

Tell us about your lot and goals for the space.

Contact TMA Design