DADU Construction
More living space. More possibilities.
A backyard cottage or DADU can create space for family, guests, or rental income. SCC manages the construction process, from site preparation through the finished home.
Scope of work
Everything a small, complete home requires
Building a DADU requires experience across every phase of residential construction. From foundations and framing to plumbing, electrical systems, and finishes, SCC brings the knowledge and attention to detail needed to manage the complete project.
Seattle's new DADU rules
Recent changes to Seattle's zoning laws make detached ADUs larger and easier to build than before. Units can now be built taller — up to the height allowed for the main house — a lot can host two detached units instead of one, and parking requirements have been eased. If a DADU was ruled out for your property in the past, the new rules may have changed the answer.
Projects we take on
- New detached accessory dwelling units (DADUs)
- Backyard cottages and guest houses
- Attached additions and above-garage units
- Site evaluation and planning coordination
- Foundations, framing and structural work
- Plumbing, electrical and HVAC systems
- Kitchenettes and full bathrooms
- Exterior finishes, roofing and siding
- Rental and multigenerational living units
Rental & property value
Built with the finished result in mind
A comfortable layout, reliable systems, and durable finishes make a DADU work well for years. SCC brings practical renovation experience to those decisions, with the finished unit's long-term value in mind.
Considering a DADU on your property?
Share your address and what you're hoping to build, and we'll follow up to discuss what's possible on your lot, timing and next steps.
Licensed General Contractor • Bonded • Insured • SCCCOCL805DB