Tiny Homes for Sale in Washington

Placement depends on your jurisdiction, which is why we check your exact address before you order. In Washington, a KYRAX tiny home is typically classified as follows: L&I gold-insignia "Tiny House" (a building, not vehicle-titled) if ≤400 sq ft and built to the WA State Building Code; otherwise an RV or park model RV titled through DOL. A factory-built tiny house of 400 sq ft or less made to the Washington State Building Code is a Factory Assembled Structure that receives an L&I gold-tone insignia and is treated as real estate, not titled as a vehicle by DOL. A wheeled unit that does not meet that definition is an RV or park model RV, which is DOL-titled and, as a residence, is generally limited to a mobile-home or RV park with utilities under RCW 35.21.684 and 36.01.225. Local zoning, setbacks, and utility rules still apply — run your site through the zoning lookup and we'll tell you plainly what works.

The median home price in Washington is ~US$605K. Our flagship model, the Vale, starts at $119,900 CAD — a fraction of a conventional build (US pricing confirmed at your consultation). On a foundation, our modular models follow the US mortgage path (IBC/IRC); movable models use chattel or RV lending. Common uses here are Foundation ADUs and backyard units in urban growth areas, guest and rental accommodation, and park-model placements within RV or mobile-home parks, and we quote your specific situation on request.

We ship from Surrey, British Columbia via the Cross-border via the Pacific Highway / Blaine crossing, then south on I-5 through the Puget Sound corridor; I-90 or US 97 eastbound for Spokane and Central WA. Estimated 1–3 days from our Surrey, BC shop to most Washington sites, depending on destination and permits; not a guaranteed schedule — this is a cross-border estimate; customs clearance and oversize-load permits affect timing, so we confirm it per site. Foundation models travel as pre-finished panels; trailer (THOW) models arrive road-ready for on-site leveling.

Washington-bound KYRAX builds are engineered to real local conditions: 12–24 in typical (12 in common at low-elevation lowlands; deeper at elevation and in the eastern interior) frost depth, ~20–30 psf in western lowlands (about 25 psf around Puget Sound); rises with elevation to 50–100+ psf in the mountains and eastern WA ground snow load, ~85–100 mph basic design (3-sec gust, ASCE 7-16, Risk Cat II) across most of the state; coastal and Olympic Peninsula higher, ~110–130 mph basic design wind speed, and Seismic Design Category B in interior eastern WA up to D and locally E in western WA (Puget Sound and coastal areas near faults); much of populated western WA is SDC D. We size insulation, framing, and anchorage to the actual ASCE 7 / IBC values for your site — not a generic climate package.

Washington builds to 2021 I-Codes (2021 IRC/IBC with Washington amendments), effective statewide March 15, 2024; permits enforced by local city and county building departments. Every KYRAX home is built to its US certification pathway — RVIA or NOAH inspection for tiny homes on wheels, ANSI A119.5 for park models, IBC/IRC for modular — with third-party certification for your destination market written into the build contract and confirmed before delivery. We can walk you through the engineering documentation your local authority may require.

It depends on how it is built. A factory-built tiny house of 400 square feet or less made to the Washington State Building Code receives an L&I gold insignia and is treated as a building, not titled as a vehicle. A recreational vehicle or park model on wheels is titled and registered through the Department of Licensing like an RV, and as a residence is generally limited to a mobile-home or RV park with utilities.

Often yes for a foundation unit inside an urban growth area. HB 1337 requires cities and counties planning under the Growth Management Act to allow up to two ADUs per single-family lot, bans owner-occupancy requirements, and must allow ADUs of at least 1,000 square feet. A foundation tiny house can serve as an ADU where local code allows, but the details are set by your local jurisdiction, so confirm with your building department.