Go Far®Home additions · Bothell
Home additions in Bothell.
Bothell’s ’80s and ’90s subdivision homes have solid bones, good lots, and — for a lot of growing families — one room too few. Go Far Construction builds additions across Bothell: ground-floor room additions, primary suites, second stories, and bump-outs, engineered properly and finished so the new space reads as original to the house, from a family-owned, licensed Washington general contractor based fifteen minutes west in Lynnwood.
Bothell’s housing is younger than most of the region’s, so the addition question here usually isn’t about rescuing an old house — it’s about a good floor plan that’s one room short. In the subdivisions off Canyon Park, North Creek, and Thrasher’s Corner, that usually means building out: a family room off the kitchen or a primary suite, the simpler build where the lot allows it. In the split-levels of Maywood Hill and Shelton View, an addition over the garage or out the back solves what the stacked floor plan can’t; our second-story addition guide covers building up, and the home additions service page covers the full range.
On budget: most additions in this market price out between roughly $300 and $550 per square foot, with complex or high-end projects going beyond that — an addition builds new house from the foundation up, which is why it prices differently than a remodel. Our home addition cost guide breaks down the ranges by addition type, and our addition vs. moving guide runs the numbers against buying the next house — in Bothell, where moving up usually means leaving the neighborhood that made you buy in the first place, adding on often wins on both the numbers and the life.
The craft is matching the house: tying new rooflines, siding profiles, and floor levels into a two-story or split-level so the addition reads as original — the same houses we open up in our Bothell kitchen and bathroom remodeling work. Bothell straddles the King–Snohomish county line, but addition permits on either side run through the same City of Bothell permit center, with structural review on most projects; we prepare and track the application, carry fees in an itemized written estimate, and meet every inspector on site, as on all our Bothell projects. If the space you need is a separate unit rather than more house, our Bothell ADU & DADU page covers that route.
What we build in Bothell
Bothell home addition questions
How much does a home addition cost in Bothell?
In this market, most additions price out between roughly $300 and $550 per square foot, with complex or high-end projects going beyond that. A bump-out is the entry point, a single-room addition typically lands in the low-to-mid six figures, and primary suites cost more per square foot because of the plumbing and tile involved. Every project gets an itemized written estimate.
Should I build up or out in Bothell?
In Bothell’s ’80s and ’90s subdivisions the lots usually still have room to give, so building out — a family room or primary suite — is often the simpler, cheaper route. On split-levels, an addition over the garage frequently beats both. We walk the options with real numbers before design begins.
Do I need a permit for a home addition in Bothell?
Yes — every addition needs a building permit, and Bothell straddles the King–Snohomish county line, but permits on either side run through the same City of Bothell permit center, with structural review on most projects. We prepare and track the application, include fees in your itemized written estimate, and meet every inspector on site.
Can you add on to a Bothell two-story or split-level without it looking tacked-on?
That’s the whole job. Matching rooflines, siding profiles, window proportions, and floor levels is what makes an addition read as original — especially on a split-level, where the floor levels are the puzzle. It’s the same care we bring to Bothell kitchen and bathroom remodels in those houses.
Plan your project
Planning a Bothell addition? Useful next reads: home addition costs · addition timelines · addition vs. moving · second-story additions · Bothell ADUs & DADUs · Kirkland additions · our Bothell page · all of Snohomish & King County