Denis showed up on time and did exactly what he quoted. Fixed my back patio cover, removed damaged boards, and reattached my gutters. He is very experienced, friendly and efficient. Definitely would recommend and I will use him again.
Deck builder
Home Additions in Seattle, WA
Framework Construction builds home additions for Seattle homeowners who need more space without moving.
Expert Home Additions in Seattle, WA
A home addition is one of the most involved projects a Seattle homeowner can take on. It means connecting new construction to an existing structure built under older codes, on a settled foundation, with load paths that have to be understood before a single wall goes up. At Framework Construction, we bring over 40 years of combined residential construction experience to every addition we plan and build. Our background spans structural framing, finish carpentry, roofing, siding, windows, and doors, so we understand how the different parts of a home work together, both structurally and visually. We handle second story additions, master suite additions, kitchen expansions, bathroom additions, garage conversions, and ADUs across Seattle and the greater Eastside, including Bellevue, Kirkland, Redmond, Sammamish, Mercer Island, Issaquah, and beyond. Seattle's zoning code sets lot coverage limits, setback requirements, and height restrictions that shape what is possible on your specific property before any design begins. We plan ahead for those constraints so your project moves forward without costly surprises. Every detail matters to us, and we stay personally involved from planning through completion.
What's included
- Gain usable square footage without the cost and disruption of selling and moving
- Add a master suite, ADU, or expanded kitchen that fits how your household actually lives
- Structural framing expertise means the addition ties into your existing home correctly, not just visually
- Over 40 years of combined residential construction experience across Seattle and the Eastside informs every planning decision
- Detailed coordination across trades keeps the project moving in the right direction from framing through finish work
- A well-planned addition increases your home's resale value and appeal in the Greater Seattle market
Family-Owned General Contractor
Structural Construction Expertise
Hands-On Project Management
Custom Home Specialists
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FAQ
Home Additions FAQ
Common questions about home additions in Seattle, WA.
Master suite additions, kitchen expansions, and ADUs tend to deliver strong value in the Seattle market. Buyers across Bellevue, Kirkland, and Seattle proper consistently prioritize extra bedrooms and flexible living space.
Yes, virtually every home addition in Seattle requires a construction permit through the Seattle Department of Construction and Inspections. Your plans must meet current zoning, structural, electrical, and mechanical codes before work can begin.
Second story addition costs in Seattle vary based on your existing foundation capacity, structural upgrades needed, square footage, and finish selections. A structural assessment of your current framing and foundation is the right starting point before any budget is set.
Your foundation type, existing framing capacity, and soil conditions all determine whether your home can support a second story as-is or needs reinforcement first. Seattle is seismically active, so the connection between old and new framing must be properly engineered to perform under load, including in a seismic event.
For many Sammamish, Mercer Island, and Eastside homeowners, adding square footage costs less than purchasing a larger home in the same neighborhood. The right answer depends on your lot's zoning limits, your current foundation, and how much space you actually need.
We build second story additions, master suite additions, kitchen and bathroom additions, garage conversions, and ADUs for homeowners across Seattle, Bellevue, Redmond, Kirkland, Issaquah, Woodinville, Bothell, Kenmore, Gig Harbor, Poulsbo, Bainbridge Island, and surrounding communities.
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Find Us
Proudly Based in Seattle, WA
Stop by, call, or book online — we're always nearby when you need us.
Phone
(253) 329-1576Hours
- Monday 8:00 AM - 5:00 PM
- Tuesday 8:00 AM - 5:00 PM
- Wednesday 8:00 AM - 5:00 PM
- Thursday 8:00 AM - 5:00 PM
- Friday 8:00 AM - 5:00 PM
- Saturday Closed
- Sunday Closed