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Custom Backyard Offices, Studios & ADUs Built Across Greater Seattle
We design, permit and build backyard offices, studio sheds, workshops and barns, plus full ADUs and DADUs when you need a bathroom and kitchen. One licensed team, from first sketch to final inspection, from Tacoma to Arlington.
Our Most Popular Backyard Office & Studio Models
Need a quiet office, a creative studio or a home gym? These are our most requested sizes. Each one is fully insulated and built for year-round use in Pacific Northwest weather. Every model can be customized, or we can design a size that fits your yard.
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 Design–Build Process
From compact backyard offices to fully permitted ADUs and DADUs, one team handles design, permits and construction. You’ll know what happens at every step, with clear timelines, a line-item quote and straightforward communication from start to finish.
- Fully licensed & insured team
- Locally trusted, 5-star rated
- Transparent quotes — no surprises
Why Homeowners Choose SDEK
- Founded by a builder with 20+ years of experience: Proven construction methods and materials chosen for Pacific Northwest weather.
- Permits handled for you: We check your city’s rules and manage drawings, setbacks, height limits and approvals.
- Licensed, bonded & insured in Washington: Contractor License
CC SDEKLL*786MH. - Completed projects: Backyard offices, studios, workshops, barns and ADUs across Greater Seattle, from Tacoma to Arlington.
- Transparent pricing: Detailed line-item quote and clear payment milestones.
Recent Projects Across Greater Seattle
What Homeowners Say About Our Work
OUR BLOG
PLAN BETTER. BUILD SMARTER.
Our blog covers backyard offices, studio sheds, barns, ADUs and DADUs (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.
Frequently Asked Questions
Do I need a permit for a backyard office or studio shed?
Small sheds without power or plumbing may be exempt in some areas, but most backyard offices and studios with electricity and insulation need a building permit and inspections. We check your city’s rules, prepare the plans, submit the application and handle any corrections for you.
How much does a backyard office or studio cost?
It depends on size, finishes, foundation, site access and electrical work. After a quick review of your property, we provide a detailed line-item quote, so you know exactly what’s included before we start.
Can I change the size, windows or finishes of a model?
Yes. Our models are starting points: size, window count and placement, doors and finishes can all be changed. Pick from our curated selections or request specific brands and finishes, and we’ll confirm lead times and any price differences before ordering.
What if I need a bathroom or kitchen?
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.
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.
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