05 / Construction
ADU Room Addition
Fully permitted accessory dwelling units and room additions.
Overview
About ADU Room Addition
Whether you need a guest house, rental unit, or extra living space, we build fully permitted ADUs and room additions. We handle design, engineering, permitting, foundation, framing, plumbing, electrical, and finishing; delivering a turnkey space ready for use. With California's ADU-friendly laws, building an accessory dwelling unit has never been more accessible. D Global Construction manages the entire process from feasibility study to final inspection, ensuring your ADU meets all local codes and delivers the living space you need.
Practical Benefits
How ADU Room Addition Can Support Your Project
Creates a separate living area that can support family, guests, work, or other approved uses
Coordinates feasibility, design, engineering, permits, and construction through one project team
Plans utilities, access, privacy, storage, and everyday function around the available property
Room additions can add usable interior space without requiring a move
Written scope and material decisions help owners understand what is included before construction
Project Process
How ADU Room Addition Moves Forward
The exact scope varies by property and local requirements, but these are the typical stages our team coordinates.
- STEP 01
Feasibility study and design consultation
- STEP 02
Architectural plans and structural engineering
- STEP 03
Permitting with local jurisdiction
- STEP 04
Foundation, framing, and structural work
- STEP 05
Plumbing, electrical, and HVAC installation
- STEP 06
Insulation, drywall, and interior finishing
Questions & Answers
ADU Room Addition FAQs
Related Services
Other Construction Services
Contact Us
Start Your Project
Have a project in mind? Share the details with our team or call us to discuss the next steps.
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