Go Far®ADU & DADU builder · Kirkland
ADU & DADU builder for Kirkland.
Kirkland pairs some of the Eastside’s strongest property values with one of the region’s most organized ADU programs — the city publishes a full ADU Toolkit and keeps a catalog of pre-approved backyard cottage designs that can clear permit review in a matter of weeks. Go Far Construction builds permitted, finished ADUs across Kirkland: ground-up backyard cottages, basement apartments, garage conversions, and attached units, from a family-owned, licensed Washington general contractor based just up the road in Lynnwood.
Washington’s ADU law — HB 1337 — requires cities to allow two accessory units per lot, and Kirkland has leaned in rather than merely complied: its ADU Toolkit walks owners through the rules, and its pre-approved DADU program licenses ready-to-build cottage designs from Northwest firms for no more than $1,000, with the city citing permit review in as little as a few weeks instead of the roughly three months a custom design takes. Our ADU vs. DADU guide walks through which route fits which lot.
On budget: basement ADU conversions and garage conversions in this market generally land between $100,000 and $250,000 depending on the starting condition of the space, while a new-build detached cottage typically runs $250,000 to $450,000 including site work, utilities, and soft costs — with Kirkland’s steeper lots and higher-end finishes sometimes pushing past that. The full math lives in our ADU cost guide and DADU cost guide, and Kirkland’s rental demand and land values make the numbers pencil as well as anywhere on the Eastside; ADU financing options covers how owners fund the build.
We build every route to a second unit: basement conversions under Finn Hill and Juanita split-levels, garage conversions, attached mother-in-law suites, and ground-up DADUs — from a city pre-approved plan or a custom design. Permits run through the City of Kirkland; we prepare the application, carry fees in an itemized written price, and meet every inspector on site, as on all our Kirkland projects.
What we build in Kirkland
Kirkland ADU questions
How much does it cost to build an ADU in Kirkland?
Basement ADU conversions and garage conversions generally land in the $100,000–$250,000 range depending on the starting condition of the space. A new-build detached ADU (backyard cottage) typically runs $250,000–$450,000 including construction, site work, utility connections, and soft costs — and high-end Eastside finishes or steep-lot site work can push beyond that. Every project gets an itemized written estimate before design is finalized.
Can we use one of Kirkland's pre-approved DADU plans?
Yes. Kirkland maintains a catalog of pre-approved backyard cottage designs from Northwest architecture firms as part of its ADU Toolkit. The plan license fee is capped at $1,000, and because the designs already meet city code, the city says permit review can drop to as little as a few weeks instead of the roughly three months a custom design takes. We can build from a pre-approved plan or design a custom unit — the right answer depends on your lot, and we’ll walk you through both.
How many ADUs does Kirkland allow on a lot?
Washington’s statewide ADU law, HB 1337, requires cities inside urban growth areas to allow two accessory dwelling units per lot, and Kirkland’s code follows the state framework. Exactly what fits on your lot still depends on zoning, lot coverage, setbacks, and any critical areas, so we confirm your parcel’s numbers with the City of Kirkland before design begins.
How long does an ADU project take in Kirkland?
Conversions of existing space typically run two to four months of construction after permits; ground-up DADUs run six to ten months including site work. Starting from one of Kirkland’s pre-approved designs can shorten the permitting phase meaningfully — the city cites reviews as short as a few weeks — and we prepare and track the application either way.
Plan your project
Costs, rules, and timelines for Kirkland ADU projects: ADU costs · DADU costs · Washington’s ADU law · ADU timelines · ADU financing · Seattle ADUs · Bellevue ADUs · Edmonds ADUs · Bothell ADUs · our Kirkland page