Building permits, zoning and land rules in Klickitat County, Washington

Unincorporated Klickitat County requires county-issued building permits and inspections for dwellings and most buildings before use or occupancy¹. The Building Department reviews plans and documents under county code and the Washington State Building Codes, including fire-life-safety and design criteria⁸. Required inspections depend on the project, and the county provides the inspection list with the permit¹⁰. Footing or foundation rebar must be inspected before concrete is poured when that work applies¹⁰.

An owner working on their own property may qualify for Washington's contractor-registration exemption when the work is not done for sale, demolition or lease⁷. That exemption concerns contractor registration, not building, electrical, plumbing, septic or other permits⁷. At project completion, a certificate of occupancy can be granted after all applicable departments approve the work, we could not confirm that every project requires one⁸.

The Klickitat County Building Department is the permit and inspection contact for county-issued building approvals; call 509-773-3706 or email buildingdept@klickitatcounty.gov^1,11. The office is at 115 W. Court St., Rm 301, Goldendale, WA 98620¹¹. Inspection requests must be called in at least 1 day ahead¹¹.

Applications may be routed to Environmental Health for water and sewage approval, Planning for zoning and setbacks, and Public Works for a county-road approach⁸. The Building Department invoices the balance after required departmental approvals, and fees must be paid before permit issuance⁸. Processing time varies with project scope, required approvals and workload¹⁰. Building fees depend on valuation and service type; some inspections and services cost $95 per hour or the jurisdiction’s total hourly cost if higher, with minimum charges¹².

Inside White Salmon, use the city building-permit authority; Bingen contracts with Skamania County for building and inspection services^13,14. On-site septic review stays with Klickitat County Environmental Health^4,15.

Unincorporated Klickitat County has county zoning, and its Interactive Mapping Program shows parcel zoning^2,16. White Salmon and Bingen administer their own zoning inside city limits; county district standards below apply to unincorporated land^3,17,18. On-site septic review remains with Klickitat County Environmental Health⁴.

Lot size, setbacks and allowed uses vary by district⁵. Rural Residential requires 20-foot front and rear yards and 5-foot side yards, measured from property lines and right-of-way edges⁵. Rural Center requires 15-foot front and rear yards and 5-foot side yards; without community water and sewer, Planning and the health officer determine the necessary lot area¹⁹. Rural-zoned buildings generally sit 50 feet from property lines, increasing to 100 feet for new residences beside specified commercial agricultural, timber or mineral-extraction land⁵. Residential requires a 20-foot front yard and 5-foot side and rear yards; Suburban Residential requires 20-foot front and rear yards and 5-foot side yards⁵. Open Space requires a 30-foot front yard, 25-foot side yards and a 50-foot rear yard⁵. Ask County Planning to confirm the parcel’s district before drawing a site plan²⁰.

Klickitat County Health Department Environmental Health handles on-site septic permitting, review and inspection; call the Goldendale office at 509-773-4565⁴. For a new build using on-site sewage, complete the system design and obtain the septic permit before the building permit⁴.

A resident homeowner may design a simple gravity system when the site evaluation allows it; other systems require a licensed designer or engineer²¹. A homeowner installing a simple gravity system must pass the county certification exam, or a licensed installer is required⁴. After installation, the owner or installer must request a final inspection, and a scaled as-built drawing must be submitted before occupancy⁴. Environmental Health may require private-water availability verification for wells, springs or cisterns, water testing, or verification of public-water and sewer connections, depending on the project and location⁸. Rural sewer is generally unavailable, so an approved on-site septic system or other treatment process is needed where sewer does not serve the property²². Only about 17.1% of mapped soils are rated without severe limitations for a conventional septic drain field, so make septic feasibility an early purchase contingency²³.

We could not confirm permission for permanent RV living on an ordinary private parcel in Klickitat County; ask County Planning about the proposed use²⁰. The Rural Resource Land district’s conditional-use provision for RV parks and campgrounds does not authorize individual RV occupancy elsewhere⁵.

Klickitat County allows temporary placement of a manufactured home, RV, park trailer or tiny home only after issuance of a new-construction residential building permit⁶. The temporary permit lasts 1 year, with extensions for justifiable cause; invalidation of the building permit also invalidates the temporary permit⁶. Approval of the new home’s occupancy ends the temporary permit, requiring removal or compliance with the county’s manufactured-home special provisions⁶. Tiny homes on wheels are treated as RVs, and permanent placement requires a HUD insignia⁶. Manufactured-home final approval also requires installation inspections, state Labor and Industries electrical verification, and planning, health, access and setback compliance²⁴.

An ADU in unincorporated Klickitat County requires an administrative conditional use where a single-family home is permitted outright; the owner must occupy either dwelling at least 6 months annually, and a detached ADU must be within 200 feet of the principal home²⁵. Neither dwelling may be a short-term vacation rental under that ADU rule²⁵.

1. Confirm whether the parcel is inside a city; outside city limits, ask County Planning to identify the zoning district, lot-size standard, setbacks and allowed use^3,5.
2. Verify the required private-water or public-water documentation and whether public sewer is available⁸.
3. For on-site sewage, complete the design and obtain the septic permit before the building permit⁴.
4. If access comes from a county road, obtain road-approach approval through Public Works; a state-highway connection instead needs written state permission^9,26.
5. Submit the building application and plans; the county routes the application for required departmental approvals and calculates fees during review⁸.
6. Pay the invoice, receive the permit package and follow its project-specific inspection list^8,10.
7. Request the final septic inspection, submit the scaled as-built drawing before occupancy and obtain all applicable final approvals^4,8.

Confirm jurisdiction and zoning first because County Planning handles land outside city limits, while incorporated cities use their own planning departments³. Check the parcel's mapped district, lot standard, setbacks and utilities before relying on a building envelope^5,16. Unincorporated Klickitat County regulates land divisions under its subdivision ordinance; a subdivision creates 5 or more divisions, while a short subdivision creates 4 or fewer²⁷. Start boundary adjustments and land divisions with Planning; the Assessor is the final step, and the year’s property taxes must be paid in full before the process begins³.

Make water and septic feasibility purchase contingencies because documentation requirements depend on the water and sewer setup⁸. Only about 17.1% of mapped soils avoid severe conventional-drain-field limits²³. Check flood maps before selecting a building pad because development in a Washington floodplain requires a local floodplain development permit²⁸. Confirm legal road access as well: county-road approaches require county approval, while state-highway approaches require written permission from the Washington Department of Transportation^9,26. The effective property-tax rate is about 0.6%, with a median annual bill around $2,401²³.