Call 253-880-9689Feasibility · Design · Construction
Add flexible living space with a complete plan.
End-to-end planning and construction for attached and detached accessory dwelling units.
ADUs & DADUs
An ADU is a small building with a full set of design, utility, site, and permitting decisions. We organize those decisions early and carry the project from feasibility through final inspection.
What SunStar brings
A complete, buildable scope.
The exact deliverables vary by property, jurisdiction, and project stage. The core service can include:
Architectural and engineering coordination
Utility and site-planning support
Permit-ready scope and drawings
Foundation-to-finish construction
Inspection management and turnover
How the work moves
Four stages. One accountable path.
Technical needs, permit reviews, insurance coordination, and construction details are organized around one clear sequence.
- 01
Verify
Review property constraints, access, utilities, and project goals.
- 02
Design
Coordinate a practical, permit-ready plan for the unit.
- 03
Permit
Organize submittals and respond to construction-related review comments.
- 04
Build
Construct and complete the unit through final inspection.

Let’s talk about your project
Ready to discuss adus & dadus?
Tell us what you are planning, or what happened. We will help you understand the next practical step.