Go Far®Home additions · Kirkland
Home additions in Kirkland.
In Juanita, Rose Hill, and Finn Hill, 1960s–80s homes sit in neighborhoods people refuse to leave — and with the cost of trading up on the Eastside, the addition is how they stay. Go Far Construction builds additions across Kirkland: 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 just up the road in Lynnwood.
Kirkland’s up-or-out question turns on the lot: flat Rose Hill and Juanita parcels often take a ground-floor addition — a primary suite, a family room off the kitchen, a bump-out that fixes a cramped bath — which is the simpler build. On Finn Hill slopes, tighter in-city lots, and anywhere a second story would capture a Lake Washington or territorial view, building up wins; our second-story addition guide covers what that takes, 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 Eastside finish expectations and complex 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 Kirkland, where the step up to a bigger home carries one of the steepest premiums in the region, that math is often decisive.
The craft matters here: matching new foundation lines, rooflines, siding profiles, and trim to a mid-century rambler or a ’70s split-level is what keeps an addition from looking tacked-on — the same houses we work on in our Kirkland kitchen and bathroom remodeling work. Every addition is permitted through the City of Kirkland with structural review; we prepare and track the application, carry fees in an itemized written estimate, and meet every inspector on site, as on all our Kirkland projects. If the space you need is a separate unit rather than more house, our Kirkland ADU & DADU page covers that route.
What we build in Kirkland
Kirkland home addition questions
How much does a home addition cost in Kirkland?
In this market, most additions price out between roughly $300 and $550 per square foot, with Eastside finish expectations and complex 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 Kirkland?
It depends on the lot. Flat Rose Hill and Juanita lots often take a ground-floor addition — the simpler, cheaper build. On sloped lots, tight lots, and anywhere a second story would capture a Lake Washington or territorial view, building up wins — and on the Eastside, that view is often worth real money at resale. We walk both options with real numbers before design begins.
Do I need a permit for a home addition in Kirkland?
Yes — every addition needs a building permit through the City of Kirkland, and most involve structural review. We prepare and track the application, include fees in your itemized written estimate, and meet every inspector on site.
Does an addition make more sense than moving in Kirkland?
Often, yes. The jump to the next-size house on the Eastside is one of the most expensive moves in the country once you count the purchase premium, selling costs, and a new mortgage at today’s rates — which is exactly why Juanita, Rose Hill, and Finn Hill homeowners add on instead of leaving neighborhoods they love. Our addition vs. moving guide runs the actual math.
Plan your project
Planning a Kirkland addition? Useful next reads: home addition costs · addition timelines · addition vs. moving · second-story additions · Kirkland ADUs & DADUs · Bellevue additions · our Kirkland page · all of King County