Washington
Buying Land in Kittitas County, Washington
Kittitas County, home to Ellensburg and the upper Yakima River, was the site of a Washington Supreme Court case and a five-year state moratorium that together reshaped how new wells and building permits work here. If you're evaluating land in the Yakima Basin portion of this county, the water question isn't background -- it's the single most consequential due-diligence item.
The 2011 Supreme Court case that froze permitting for years
Kittitas County's most consequential land-use event of the past two decades is arguably not a zoning ordinance but a court case: Kittitas County v. Eastern Washington Growth Management Hearings Board, decided by the Washington Supreme Court in 2011. The case arose after the Eastern Washington Growth Management Hearings Board found the county's comprehensive plan and development code noncompliant with the Growth Management Act on multiple grounds -- including a failure to develop the required written record explaining its rural element, a failure to protect agricultural land, and, critically, a failure to protect water resources. The Supreme Court specifically held that county comprehensive plans cannot permit evasion of state water-permitting requirements by relying on subdivisions built around multiple permit-exempt wells rather than an actual water right.
The real-world consequence was severe and long-lasting: parts of Kittitas County stopped processing building permits for roughly six years as a direct result of this litigation, with areas near Ellensburg specifically affected for roughly four-and-a-half years. This history is exactly why water-availability documentation is treated with unusual rigor in Kittitas County today -- it isn't bureaucratic caution for its own sake, it's the direct legacy of a building-permit freeze that lasted the better part of a decade in parts of the county.
A five-year groundwater moratorium and a fully appropriated basin
Running roughly parallel to the litigation, the Washington Department of Ecology grew concerned that unrestricted permit-exempt well drilling by landowners and developers in Upper Kittitas County was affecting senior water-right holders' ability to access surface water they were legally entitled to in the Yakima River Basin. Nearly 3,000 exempt wells had been drilled in the lead-up to formal action. When negotiations between the county and Ecology broke down in 2009, Ecology imposed a groundwater withdrawal moratorium across Upper Kittitas County that remained in place until 2014.
The Yakima River Drainage Basin, which covers the majority of Kittitas County, remains fully appropriated today -- meaning there is no water legally available for new appropriations through the ordinary permitting process. To get a building permit tied to a new well anywhere in this portion of the county, an applicant must prove water is available not just physically (the well can produce water) but legally (the withdrawal doesn't impair a senior water right). Kittitas County requires new water uses tied to county development permits to be mitigated against Total Water Supply Available, including mitigating for the county's cumulative historical impact from exempt-well development dating back to the 1945 groundwater code, typically through acquisition of senior water rights or participation in an available water bank. See the dedicated well-water page below for how this mitigation process actually works for a specific parcel.
Wind energy, regulated partly by the state, not just the county
Kittitas County also hosts substantial commercial wind-energy development, most notably the Wild Horse Wind Power project -- approved by the state's Energy Facility Site Evaluation Council (EFSEC) in 2005, built on roughly 9,500 acres east of the town of Kittitas, with 149 original turbines and a later expansion adding more capacity, for a combined output in the range of 270+ MW -- and the separate Kittitas Valley Wind Power project. Because Washington routes large energy-facility siting decisions through EFSEC rather than leaving them purely to county zoning, an expansion or modification of an existing wind facility can require both a county development-agreement amendment and final EFSEC approval. If a parcel sits near an existing or proposed wind project, confirm the facility's current permitted boundary and any applicable setback with both Kittitas County Community Development Services and EFSEC directly.
Who to Call Before Buying Land in Kittitas County
For water-right-specific questions (not just county permitting), the Washington State Department of Ecology's Yakima field office is a necessary additional contact alongside Kittitas County Public Works.
Planning & Zoning
Kittitas County Community Development Services
Confirming a parcel's zoning designation, rural/resource land use, and wind-facility development-agreement status.
Other
Kittitas County Public Works -- Water Resources
Water-availability mitigation requirements, the county's water bank, and building-permit water documentation for the Yakima Basin portion of the county.
Septic / Onsite Wastewater
Kittitas County Public Health -- Environmental Health
Septic (on-site sewage) system permitting and liquid-waste program questions.
Recorder / Clerk / Land Records
Kittitas County Auditor
Recorded deed, water-right, and easement history for a specific parcel.
Want to know if this specific parcel actually works?
Tell us what you're looking at and we'll connect you with a local land specialist who can help you sanity-check it before you go further.
Get local guidanceTopics Specific to Kittitas County
Sources
- Kittitas County v. E. Wash. Growth Mgmt. Hearings Bd. — Washington Supreme Court / Justia (accessed 2026-09)
- KITTITAS COUNTY BIAW CWHBA MF LLC II v. EASTERN WASHINGTON GROWTH MANAGEMENT HEARINGS BOARD — FindLaw (accessed 2026-09)
- Upper Kittitas County well moratorium extended — Daily Record (Ellensburg) (accessed 2026-09)
- Water banks allow development to occur in water-short Yakima basin — Yakima Herald-Republic (accessed 2026-09)
- Kittitas County Public Works -- Water Bank — Kittitas County, WA Government (accessed 2026-09)
- Wild Horse Wind Power — Washington State Energy Facility Site Evaluation Council (accessed 2026-09)
- Wild Horse Wind Farm — Wikipedia (accessed 2026-09)
Last reviewed 2026-09