Professional team to build studio sheds and backyard offices
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Custom ADUs & DADUs Built in Seattle and Across Washington
As dedicated Seattle ADU builders and contractors, our team designs and builds fully permitted ADUs and DADUs that meet Seattle’s zoning, SDCI requirements, and neighborhood character—so your backyard home is beautiful, durable, and compliant from day one.
Some of our ADU Models We Build in Seattle & Washington
Ready to create a space that truly fits your lifestyle? Our ADU design and ADU homes offer the perfect blend of privacy, comfort, and year-round usability—without the hassle of a full home renovation. Each model features modern architecture, durable materials, and thoughtful layouts designed to make the most of your backyard.
Tiny Backyard Office Pods & Compact Workspaces
Our backyard office pod is perfect for remote work, study, or hobbies when you need a quiet space that fits naturally into your yard. Its compact design feels spacious and comfortable.
- 12x10 ft (120 sqft)
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Custom Backyard Studio Sheds for Office Spaces
A flexible mid-size layout for a creative studio, home office, or fitness room. Add storage, built-ins, or extra glazing to suit your routine.
- 15x13 ft (195 sqft)
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Luxury Backyard Office Sheds & Executive Workspaces
Premium finishes, generous light, and a client-ready presence. Ideal when you want a polished, professional space steps from home.
- 20x10 ft (200 sqft)
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Our Proven ADU Design–Build Process
From compact offices to fully permitted ADUs and DADUs, we build spaces that balance form, function, and code compliance. Our process keeps you informed at every step—design, permitting, and construction—so timelines are clear and decisions are simple. Expect quality craftsmanship, durable materials, and straightforward communication from start to finish.
- Fully licensed & insured team
- Locally trusted, 5-star rated
- Transparent quotes — no surprises
Why Seattle Homeowners Choose Our ADU Builders
- 20+ years building in Washington: Deep experience with local climate, materials, and construction best practices.
- Seattle permitting experts: We navigate SDCI, zoning, setbacks, height limits, and DADU rules for you.
- Licensed, bonded & insured in Washington: Contractor License
CC SDEKLL*786MH. - 1300+ completed projects: Backyard homes, studios, and ADUs across Seattle and the Puget Sound region.
- Transparent pricing: Feasibility study, detailed line-item estimate, and clear milestones.
Recent ADU Projects in Seattle
What Seattle Homeowners Say About Our ADU Builds
OUR BLOGS
PLAN BETTER. BUILD SMARTER.
Our blog breaks down ADUs, DADUs, and studio sheds—codes, costs, and design—so you can plan with confidence. Expect real project lessons, Washington permitting insights, and practical tips that save time, money, and stress.
Seattle ADU FAQ
How long does it take to get an ADU permit in Seattle?
Timelines vary based on the scope of your project and the city’s current review load, but most Seattle ADU and DADU permits take a few months from submission to approval. Our team handles zoning review, drawings, engineering, and SDCI communication for you, so you always know what stage your permit is in.
How much does an ADU or DADU cost in Seattle?
Costs depend on size, finishes, site conditions, and whether the unit is attached or detached. Most homeowners should plan for a six-figure investment for a fully permitted, turnkey ADU or DADU. During our feasibility and design phase, we provide a detailed, line-item estimate so there are no surprises.
What is the maximum size for an ADU in Seattle?
Seattle allows a range of ADU and DADU sizes depending on your zoning, lot size, and whether the unit is attached or detached. In many cases, detached ADUs can go up to around 1,000 square feet, but the exact limit is determined by your property’s zoning and lot coverage rules. We verify all size and setback limits as part of our feasibility study.
Do I need off-street parking for an ADU in Seattle?
In many Seattle neighborhoods, an additional off-street parking space is not required for an ADU, especially in areas with good transit access. The details depend on your specific zoning and location. We’ll review the applicable parking standards for your property and include them in your design and permit set.
Can I convert my existing garage or basement into an ADU?
Yes. Many homeowners in Seattle create attached ADUs by converting basements or existing garages. These projects still need to meet structural, life-safety, energy, and egress requirements, and typically require new plans and permits. We evaluate your existing structure to see what is feasible and what upgrades are needed.
Will adding an ADU increase my property value?
In most cases, a well-designed, fully permitted ADU or DADU adds significant value to your property by creating flexible, rentable, or multi-generational space. Many owners use ADUs for long-term rentals, guest suites, or home offices, which can help offset the cost of construction over time.
What is your process for designing and building an ADU?
Our design–build process includes a feasibility study, architectural design, structural engineering, permit submission and revisions, and full construction management through final inspection. We handle the coordination with the city and keep you updated at each milestone so you always know what’s next.
GET IN TOUCH
WE’RE READY AND HAPPY TO HELP YOU!
Have questions or a sketch in mind? We’ll talk through options, timelines, and budget and help you choose the right path for your property. Whether you’re early in research or ready to start, you’ll get clear answers and real solutions—no pressure.