Washington Division · Office

General Contractor in Snohomish County, WA

Covering Snohomish County — Everett, Marysville, and the 405/522 corridor — for new construction, ADUs, and whole-home remodels.

What we build in Snohomish

  • New Construction

    New homes on the larger rural lots of Snohomish County, often with well and septic coordination handled alongside the design, engineering and permit package.

  • ADUs & Garages

    Detached shops, garages and DADUs are what the county's acreage is made for; we design and permit them with the zoning and setback rules of each city or the county.

  • Additions & Renovations

    Whole-home remodels and additions along the 405/522 corridor and in Everett and Marysville, with new framing tied into old and mechanical brought up to code.

  • Kitchen & Bathroom Remodels

    Our own crew handles the plumbing rough-in, electrical, tile and cabinetry, with a complimentary 3D design model before work starts.

  • Engineering & Permitting

    Historic downtown Snohomish comes with design-review considerations, and river-valley sites can sit in mapped flood zones — we plan for both before submittal.

  • Roofing, Siding, Windows

    Wet-weather envelope details — rain-screen siding, flashed windows and a roof that moves water off the building — are the Puget Sound fundamentals on every job.

  • HVAC, Plumbing, Electrical

    Heat pumps and the Washington State Energy Code shape mechanical design here; we self-perform HVAC, plumbing and electrical so one crew owns the schedule.

  • Decks & Pergolas

    Engineered, permitted outdoor structures detailed to shed water away from the house through a Snohomish County winter.

Permits and codes in Snohomish

Snohomish County work splits between city permit offices — Snohomish, Everett, Marysville, Lake Stevens and Monroe each run their own building departments — and Snohomish County Planning and Development Services, which covers the unincorporated acreage that makes up so much of the area. We know which office an address belongs to and what each one expects in a plan set.

Two local conditions change the permit path. Sites along the Snohomish and Skykomish river valleys can sit in mapped FEMA flood zones, which affects foundation elevation and the review process, so we check the FEMA panel on the first visit. The historic downtown Snohomish core carries design-review considerations that we plan for before submittal. Otherwise the codes match the rest of the Puget Sound region — the Washington State Building Code and Energy Code, seismic framing and wet-weather envelope details — and our in-house engineering and permitting team carries the plans through.

Building in Snohomish: what to know

Snohomish County work splits between city permit offices — Snohomish, Everett, Marysville, Lake Stevens, Monroe — and Snohomish County Planning and Development Services for the unincorporated acreage that makes up so much of the area. Larger rural lots are where we build detached shops, garages, and DADUs, often with well and septic coordination, while the historic downtown Snohomish core comes with design-review considerations we plan for before submittal.

Sites along the Snohomish and Skykomish river valleys can sit in mapped flood zones, which affects foundation elevation and permitting; we check the FEMA panel on the first visit so there are no surprises later. Otherwise the fundamentals match the rest of the Puget Sound region: wet-weather envelope details, seismic framing, and the Washington State Energy Code. Our Snohomish office keeps travel short, and every trade on the job is our own crew.

Neighborhoods and nearby cities we serve

Our Snohomish office keeps travel short to Everett, Marysville, Lake Stevens, Monroe, Mill Creek, Bothell and the rest of the 405/522 corridor, and to the rural acreage east toward the Cascade foothills. South of the county line we serve Seattle and the Bellevue Eastside from the same crew, with our headquarters in Federal Way.

Snohomish remodeling and building FAQ

Yes. Detached structures, additions, ADUs and any remodel that touches structure, plumbing or electrical need a building permit — from the city if you're inside Snohomish, Everett, Marysville, Lake Stevens or Monroe, and from Snohomish County Planning and Development Services on unincorporated land. Cosmetic finishes generally don't. We confirm the jurisdiction on the first visit.

Several weeks for a simple remodel to a few months for new construction or a DADU, depending on the office and its workload; flood-zone and historic-district reviews add steps. We check the FEMA panel and design-review requirements up front and submit complete, stamped plan sets so the review doesn't bounce back.

Often, yes — the county's larger lots are well suited to detached ADUs, and Washington's updated middle-housing rules apply in the cities. Well and septic capacity, setbacks and lot coverage decide what fits, and we handle that analysis along with the design. Our ADU rules by city guide covers the state framework.

Most of the county prices at our Puget Sound baseline, with the north county slightly below it; Seattle city and the Eastside run above. The estimate calculator prices your ZIP in about 90 seconds, and the cost guides list typical project ranges by state.

Yes — free, on-site advice visits across the county from our Snohomish office, with a scoped estimate and a complimentary 3D design model and no obligation.
Reviewed on Google and Yelp

What clients say

  • "Sebastian and his team did an exceptional job restoring my garage — both its structural integrity and the finish — after a car plowed into it. They prioritized the structural restoration within one day of visiting the…" Read more

    Fedon M.
    Garage Restoration · SeaTac · May 2024
    via Yelp
  • "I had a great experience with ID Builder Construction. I discovered a load-bearing beam in the house was compromised due to water damage, which would have prevented me from renting it. Sebastian came in at a reasonable…" Read more

    Nikhil A.
    Structural Repair · San Jose · Apr 2024
    via Yelp
  • "This company came out to bid and actually showed up at the date and time agreed upon. Once they quoted the work (at a competitive price) they had guys working that same day. They kept to their quote, and we even added…" Read more

    Jake P.
    Remodel & Drywall · Puyallup · Mar 2024
    via Yelp

Book your free professional advice visit

Free estimate. Free 3D design model. Free on-site advice from the builder who prices the job. No obligation.