Washington Regulations: Counties & Municipal Zoning Guide
Understanding where Amish tiny cabins are allowed in Washington depends on both county and city regulations. Washington has no single statewide tiny house law — each of the state’s 39 counties and their municipalities set their own rules on minimum square footage, foundation requirements, and where tiny homes can be placed. Many rural counties have minimal or more flexible regulations, particularly in unincorporated and agricultural areas, offering greater placement options. Others defer building and zoning authority to local cities and towns. In contrast, suburban and urban municipalities often enforce stricter zoning, including minimum dwelling sizes ranging from 200 to 1,000+ square feet, foundation requirements, and occupancy classifications. Some areas may also regulate tiny homes on wheels differently from permanent structures. Because rules vary widely by location, it’s important to verify requirements with local authorities. The guide below provides a county overview and municipal references to help you confidently plan and place your tiny cabin in Washington.
Counties
Yes. Adams County (home to Ritzville — Eastern Washington wheat country) permits tiny homes under WA State Building Code with Appendix AQ, including ventilation and ceiling height requirements. Contact Adams County Planning & Building.
Resources: Adams County, WA Government Directory
Yes. Asotin County (home to Asotin, near Lewiston ID) permits tiny homes. Contact Asotin County Building & Planning.
Resources: Asotin County, WA Government Directory
Yes. Benton County (Tri-Cities region — home to Kennewick, Richland, Prosser) permits tiny homes. Eastern Washington wine country. Contact Benton County Planning & Land Use.
Resources: Benton County, WA Government Directory
Yes. Chelan County (home to Wenatchee, Leavenworth, Lake Chelan — popular Eastern Washington wine and tourism corridor) permits tiny homes. High-end tiny home villages near Lake Chelan are notable. Contact Chelan County Community Development.
Resources: Chelan County, WA Government Directory
Yes. Clallam County (home to Port Angeles — Olympic Peninsula, gateway to Olympic National Park) permits tiny homes. Strict shoreline management and critical areas protections apply. Contact Clallam County Department of Community Development.
Resources: Clallam County, WA Government Directory
Does Clallam County, Washington, Allow Amish Tiny Cabins?
Yes. Clallam County (home to Port Angeles — Olympic Peninsula, gateway to Olympic National Park) permits tiny homes. Strict shoreline management and critical areas protections apply. Contact Clallam County Department of Community Development.
Resources: Clallam County, WA Government Directory
Yes. Clark County (Portland metro north — home to Vancouver, WA) permits tiny homes under Washington State Building Code with Appendix AQ. Active ADU expansion. Contact Clark County Community Planning.
Resources: Clark County, WA Government Directory
Yes. Columbia County (home to Dayton — southeast Washington) permits tiny homes. Significant rural flexibility. Contact Columbia County Planning Department.
Resources: Columbia County, WA Government Directory
Yes. Cowlitz County (home to Kelso and Longview, on the Columbia River) permits tiny homes. Contact Cowlitz County Building & Planning.
Resources: Cowlitz County, WA Government Directory
Yes. Douglas County (home to Waterville — north central Washington, near Wenatchee) permits tiny homes. Significant rural flexibility. Contact Douglas County Land Services.
Resources: Douglas County, WA Government Directory
Yes. Ferry County (home to Republic — far northeast Washington) permits tiny homes. Significant rural flexibility. Contact Ferry County Planning Department.
Resources: Ferry County, WA Government Directory
Yes. Franklin County (Tri-Cities — home to Pasco) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Franklin County Planning & Building Department.
Resources: Franklin County, WA Government Directory
Yes. Garfield County (home to Pomeroy — southeast Washington, least populated WA county) permits tiny homes. Exceptional rural flexibility. Contact Garfield County Planning & Zoning.
Resources: Garfield County, WA Government Directory
Yes — and uniquely THOW-friendly. Grant County (Central Washington — home to Moses Lake) has carved out a specific path for tiny living: Park Model RVs are permitted as permanent residences in any zone that permits manufactured homes. Requirements: Washington State L&I insignia, permanently affixed to approved foundation system, wheels and tongue removed or concealed. Contact Grant County Department of Development Services.
Resources: Grant County, WA Government Directory
Yes. Grays Harbor County (Pacific coast — home to Aberdeen, Hoquiam, Ocean Shores) permits tiny homes. THOWs treated as RVs with strict seasonal occupancy limits in beach towns. Contact Grays Harbor County Planning & Building.
Resources: Grays Harbor County, WA Government Directory
Yes (with limits). Island County (Whidbey Island, Camano Island) permits tiny homes but has strict aquifer protection rules. Contact Island County Planning & Community Development.
Resources: Island County, WA Government Directory
Yes — Washington’s most progressive county for tiny home enthusiasts. Jefferson County (home to Port Townsend) — Port Townsend is arguably the most progressive city for tiny homes in the entire state, with local ordinances explicitly allowing THOWs as permanent ADUs. Port Townsend ordinances also encourage ‘THOW Communities.’ Contact Jefferson County Department of Community Development.
Resources: Jefferson County, WA Government Directory
Yes — Washington’s flagship tiny-home metro. King County (home to Seattle — Washington’s largest city) views tiny homes as ‘an affordable and efficient method of providing housing.’ Current building and zoning codes don’t specifically define or regulate tiny houses other than requiring they meet general housing standards. Seattle allows both detached ADU tiny homes (foundation) and, in some cases, THOWs as backyard cottages. Tiny house eco-villages permitted under SB 5383 (2019). Contact King County Department of Local Services – Permitting Division.
Resources: King County, WA Government Directory
Yes. Kitsap County (Puget Sound — home to Port Orchard, Bremerton, Bainbridge Island, naval bases) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Kitsap County Department of Community Development.
Resources: Kitsap County, WA Government Directory
Yes. Kittitas County (home to Ellensburg — Central Washington University, Cascade mountains) permits tiny homes. Contact Kittitas County Community Development Services.
Resources: Kittitas County, WA Government Directory
Yes. Klickitat County (home to Goldendale — Columbia River Gorge area) permits tiny homes. Active outdoor recreation/tourism corridor. Contact Klickitat County Planning Department.
Resources: Klickitat County, WA Government Directory
Yes. Lewis County (home to Chehalis and Centralia, I-5 corridor between Seattle and Portland) permits tiny homes. Contact Lewis County Community Development.
Resources: Lewis County, WA Government Directory
Yes. Lincoln County (home to Davenport — Eastern Washington wheat country) permits tiny homes. Significant rural flexibility. Contact Lincoln County Planning Department.
Resources: Lincoln County, WA Government Directory
Yes. Mason County (home to Shelton — Olympic Peninsula) permits tiny homes. Significant rural flexibility. Contact Mason County Community Services.
Resources: Mason County, WA Government Directory
Yes. Okanogan County (largest county in Washington by area — north central Washington, North Cascades region) permits tiny homes. Significant rural flexibility — among Washington’s most accommodating for off-grid placement. Contact Okanogan County Planning Department.
Resources: Okanogan County, WA Government Directory
Yes. Pacific County (Pacific coast — home to South Bend, Long Beach Peninsula) permits tiny homes. Coastal tourism corridor. Contact Pacific County Department of Community Development.
Resources: Pacific County, WA Government Directory
Yes. Pend Oreille County (home to Newport — far northeast Washington) permits tiny homes. Significant rural flexibility. Contact Pend Oreille County Community Development.
Resources: Pend Oreille County, WA Government Directory
Yes. Pierce County (home to Tacoma — Washington’s third-largest city, plus Joint Base Lewis-McChord) permits tiny homes under Washington State Building Code with Appendix AQ. Active ADU expansion under HB 1337. Contact Pierce County Planning & Public Works.
Resources: Pierce County, WA Government Directory
Limited. San Juan County (the San Juan Islands — home to Friday Harbor on San Juan Island) is one of Washington’s most restrictive counties for tiny homes. Strict aquifer protection, environmental review, and shoreline management rules apply. Contact San Juan County Department of Community Development.
Resources: San Juan County, WA Government Directory
Yes. Skagit County (home to Mount Vernon — Skagit Valley tulip fields, North Cascades National Park gateway) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Skagit County Planning & Development Services.
Resources: Skagit County, WA Government Directory
Yes. Skamania County (home to Stevenson — Columbia River Gorge, near Mt. Adams) permits tiny homes. Contact Skamania County Community Development Department.
Resources: Skamania County, WA Government Directory
Yes (with limits) — and uniquely progressive in unincorporated areas. Snohomish County (Seattle metro north) is known for being more progressive with tiny home regulations — unincorporated areas often allow for extended RV and tiny house occupancy compared to stricter urban centers. However, Snohomish enforces a strict 180-day rule for RV-style THOWs on private land. Contact Snohomish County Planning & Development Services.
Resources: Snohomish County, WA Government Directory
Yes. Spokane County (home to Spokane — Eastern Washington’s largest metro) has clear ADU paths. The county follows Washington State Building Code with Appendix AQ. Eastern Washington’s biggest hurdle is water — proving water availability (the ‘Hirst Decision’) is mandatory for building permits. Contact Spokane County Building & Planning.
Resources: Spokane County, WA Government Directory
Yes. Stevens County (home to Colville — far northeast Washington) permits tiny homes. Significant rural flexibility. Contact Stevens County Land Services.
Resources: Stevens County, WA Government Directory
Yes. Thurston County (home to Olympia — Washington’s capital) permits tiny homes under Washington State Building Code with Appendix AQ. Quixote Village (Olympia) is a notable tiny home village. Contact Thurston County Community Planning & Economic Development.
Resources: Thurston County, WA Government Directory
Yes. Wahkiakum County (home to Cathlamet, on the Columbia River — second-smallest WA county) permits tiny homes. Contact Wahkiakum County Planning & Building.
Resources: Wahkiakum County, WA Government Directory
Yes. Walla Walla County (home to Walla Walla — wine country, Whitman College) permits tiny homes. Contact Walla Walla County Community Development Department.
Resources: Walla Walla County, WA Government Directory
Yes. Whatcom County (home to Bellingham — Western Washington University, gateway to Mount Baker and Canada) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Whatcom County Planning & Development Services.
Resources: Whatcom County, WA Government Directory
Yes. Whitman County (home to Colfax and Pullman — Washington State University) permits tiny homes. Contact Whitman County Public Works/Planning.
Resources: Whitman County, WA Government Directory
Yes. Yakima County (Central Washington — home to Yakima, wine country) permits tiny homes under Washington State Building Code with Appendix AQ. Active rural region with significant flexibility. Contact Yakima County Planning Division.
Resources: Yakima County, WA Government Directory
Municipalities
Aberdeen (in Grays Harbor County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Aberdeen, WA
Asotin (in Asotin County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Asotin, WA
Auburn (in King County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Auburn, WA
Yes. Bellevue (King County — Seattle metro east) permits tiny homes under Washington State Building Code with Appendix AQ. Strong ADU rental market. Contact Bellevue Community Development.
Resources: City of Bellevue, WA
Yes. Bellingham (Whatcom County — Western Washington University) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Bellingham Planning & Community Development.
Resources: City of Bellingham, WA
Bremerton (in Kitsap County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Bremerton, WA
Burien (in King County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Burien, WA
Cathlamet (in Wahkiakum County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Cathlamet, WA
Centralia (in Lewis County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Centralia, WA
Chehalis (in Lewis County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Chehalis, WA
Colfax (in Whitman County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Colfax, WA
Colville (in Stevens County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Colville, WA
Coupeville (in Island County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Coupeville, WA
Davenport (in Lincoln County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Davenport, WA
Dayton (in Columbia County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Dayton, WA
Ellensburg (in Kittitas County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Ellensburg, WA
Ephrata (in Grant County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Ephrata, WA
Yes. Everett (Snohomish County) permits tiny homes. Note: Snohomish County enforces a strict 180-day rule for RV-style THOWs on private land. Contact Everett Planning & Community Development.
Resources: City of Everett, WA
Federal Way (in King County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Federal Way, WA
Friday Harbor (in San Juan County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Friday Harbor, WA
Goldendale (in Klickitat County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Goldendale, WA
Kelso (in Cowlitz County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Kelso, WA
Yes. Kennewick (Benton County — Tri-Cities) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Kennewick Planning & Community Development.
Resources: City of Kennewick, WA
Kent (in King County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Kent, WA
Yes. Kirkland (King County — Seattle metro east) permits tiny homes under Washington State Building Code with Appendix AQ. Active ADU rental market. Contact Kirkland Planning & Building.
Resources: City of Kirkland, WA
Leavenworth (in Chelan County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Leavenworth, WA
Longview (in Cowlitz County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Longview, WA
Montesano (in Grays Harbor County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Montesano, WA
Yes. Moses Lake (Grant County — Central Washington) follows Grant County’s progressive Park Model RV pathway, with units permitted as permanent residences in any zone that permits manufactured homes (L&I insignia, permanent foundation, wheels/tongue concealed). Contact Moses Lake Community Development.
Resources: City of Moses Lake, WA
Mount Vernon (in Skagit County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Mount Vernon, WA
Newport (in Pend Oreille County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Newport, WA
Okanogan (in Okanogan County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Okanogan, WA
Yes. Olympia (Thurston County — Washington’s capital) permits tiny homes. Quixote Village is a renowned tiny home community model. Contact Olympia Community Planning & Development.
Resources: City of Olympia, WA
Pasco (in Franklin County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Pasco, WA
Pomeroy (in Garfield County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Pomeroy, WA
Port Angeles (in Clallam County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Port Angeles, WA
Port Orchard (in Kitsap County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Port Orchard, WA
Yes — arguably Washington’s most progressive tiny home city. Port Townsend (Jefferson County) explicitly allows THOWs as permanent ADUs. Park Model RVs (with L&I insignia) can be sited as permanent dwellings meeting energy and safety standards. The city has ordinances encouraging ‘THOW Communities’ — a true haven for tiny living. Contact Port Townsend Planning & Community Development.
Resources: City of Port Townsend, WA
Prosser (in Benton County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Prosser, WA
Yes. Pullman (Whitman County — Washington State University) permits tiny homes. Contact Pullman Planning Department.
Resources: City of Pullman, WA
Puyallup (in Pierce County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Puyallup, WA
Yes. Redmond, WA (King County — Microsoft HQ, Eastside tech corridor) permits tiny homes. Contact Redmond Planning & Community Development.
Resources: City of Redmond, WA
Yes. Renton (King County — south Seattle metro) permits tiny homes. Contact Renton Community & Economic Development.
Resources: City of Renton, WA
Republic (in Ferry County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Republic, WA
Yes. Richland (Benton County — Tri-Cities, near Hanford site) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Richland Planning & Public Works.
Resources: City of Richland, WA
Ritzville (in Adams County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Ritzville, WA
Yes — Washington’s flagship tiny-home city. Seattle allows both detached ADUs (foundation) and, in some cases, THOWs as backyard cottages. Focus is on lot coverage and utility integration. Tiny house eco-villages permitted under SB 5383 (2019). King County views tiny homes as ‘an affordable and efficient method of providing housing.’ Contact Seattle Department of Construction & Inspections.
Resources: City of Seattle, WA
Shelton (in Mason County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Shelton, WA
South Bend (in Pacific County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of South Bend, WA
Yes. Spokane (Eastern Washington’s largest metro) has clear ADU paths. Follows Washington State Building Code with Appendix AQ. Contact Spokane Planning Services.
Resources: City of Spokane, WA
Spokane Valley (in Spokane County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Spokane Valley, WA
Does Stevenson, Washington, Allow Amish Tiny Cabins?
Stevenson (in Skamania County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Stevenson, WA
Yes. Tacoma (Pierce County — Washington’s third-largest city) permits tiny homes under Washington State Building Code with Appendix AQ. Active ADU expansion under HB 1337. Contact Tacoma Planning & Development Services.
Resources: City of Tacoma, WA
Yes. Vancouver, WA (Clark County — Portland metro north) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Vancouver Community Development.
Resources: City of Vancouver, WA
Yes. Walla Walla (wine country, Whitman College) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Walla Walla Development Services.
Resources: City of Walla Walla, WA
Waterville (in Douglas County) follows Washington’s framework — Washington State Building Code with Appendix AQ permits tiny houses ?400 sq ft. HB 1337 (2023) allows up to 2 ADUs per residential lot. Contact city offices for property-specific permit guidance.
Resources: City of Waterville, WA
Yes. Wenatchee (Chelan County — Central Washington’s largest city) permits tiny homes. Contact Wenatchee Community Development.
Resources: City of Wenatchee, WA
Yes. Yakima (Yakima County — Central Washington) permits tiny homes under Washington State Building Code with Appendix AQ. Contact Yakima Planning Division.
Resources: City of Yakima, WA
