General Construction & Additions in Seattle & Tacoma
We build additions, structural modifications, and ground-up construction across Seattle and Tacoma, handling engineering, permitting, and the build end to end. Projects typically run 4-12 months depending on scope and permit review.
Permits are a schedule item, not a footnote
Every jurisdiction around Puget Sound reviews at its own pace, and an addition that touches setbacks, drainage, or the envelope gets read carefully. We build permit review into the schedule from day one and tell you what your city's queue actually looks like, so the timeline you plan around is the real one.
Built for how it rains here
Water management is the difference between an addition that lasts and one that rots quietly. Flashing details, drainage away from the foundation, proper weather barriers, and roof-to-wall transitions get designed and inspected — not improvised on a Friday afternoon.
Structure done properly
Removing a bearing wall, adding a second story, or underpinning a foundation is engineering work before it is carpentry. We bring in a licensed engineer, build to the stamped drawings, and keep the inspection record clean — which also matters the day you sell the house.
What a general construction project includes
Typical scope on a 4-12 months project. Anything outside it is listed as a written exclusion in your proposal.
- Feasibility review and existing-conditions survey
- Architectural drawings and stamped engineering coordination
- Permit applications, review responses, and inspections
- Excavation and foundation work
- Framing, roofing, and weather-tight envelope
- Seismic retrofitting and structural modifications
- Mechanical, electrical, and plumbing rough-ins
- Insulation, drywall, and interior finishes
- Site protection and debris management
- Final inspection and handover documentation
How we run a general construction project
The same sequence on every job, so you always know what happens next.
- 01
Feasibility conversation
We look at the lot, the structure, and what your jurisdiction will allow.
- 02
Design and engineering
Drawings developed, then stamped engineering where structure or foundation is involved.
- 03
Written proposal
Scope, allowances, exclusions, and a schedule that includes permit review.
- 04
Permitting
We submit, answer review comments, and track the application to issuance.
- 05
Site work and foundation
Excavation, footings, and drainage done before anything goes vertical.
- 06
Framing and dry-in
Structure framed, roofed, and weather-tight before interior work starts.
- 07
Rough-ins and inspections
Systems roughed, inspected, and signed off.
- 08
Finishes and handover
Interior finishes completed, final inspection passed, documents handed over.
Our Seattle–Tacoma guarantees
Written commitments that apply to every general construction project we take in King and Pierce counties.
- All work permitted and inspected under our Washington contractor license.
- Stamped engineering for any structural or foundation work.
- Written schedule that accounts for real permit review times in your jurisdiction.
- Fixed price with written exclusions; change orders approved by you in writing first.
- Workmanship warranty and complete inspection records at handover.
General Construction FAQ
- How long does a home addition take in Seattle?
- Typically 4-12 months from design to handover. Construction is a large part of that, but permit review in your jurisdiction is often what moves the date.
- Do you handle the engineering and permits?
- Yes. We coordinate stamped engineering, submit the permit, answer review comments, and manage every inspection under our license.
- Can you remove a bearing wall?
- Yes, with engineering. A licensed engineer specifies the beam and supports, we build to those drawings, and the work is inspected before it is covered.
Read more before you decide
Ready to price your general construction project?
Free estimate, fixed written scope, licensed and insured. We respond within 2 business hours, Mon–Fri, 8am–5pm PT.
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