Grant County (county seat: Medford) covers 1,004 square miles with a population of 4,169 (2020). Official county website: grant.okcounties.org. This page summarizes the verified building-regulation posture of unincorporated Grant County land; the full 10-dimension scorecard with every source receipt lives on its Freedom Map card.
No county residential building permit or building department on unincorporated land. Oklahoma names no enforcing authority for the residential/structural code in unincorporated areas (OUBCC FAQ); the Fire Marshal covers only commercial rurally. A county MAY adopt codes under 19 O.S. §868.17A but only in a §868.1–868.22 planning county — Grant has not. DEQ septic and (in the SFHA) a floodplain permit still apply, so 9 not 10.
The claim above is source-verified (official statute/county documents; URL, direct quote, and date on the full card). Method: how we verify.
No county's freedom erases state law: septic/wastewater permitting (health authority), well permits and water rights (state engineer/DNR), floodplain rules with federally connected financing, and — in some states — state-run electrical inspections. The full card details which of these bite in Grant County and how hard.
The score describes unincorporated county land only. Inside Grant County, incorporated municipalities set their own, usually stricter, rules — including: Medford, Pond Creek, Wakita, Lamont, Nash, Deer Creek, Jefferson. Land inside town limits follows town code.
Building rules are the first question people ask about Grant County — and the easiest one to answer. They're rarely the one that decides it. The full card grades all ten dimensions, every claim quoted from the county's own code.
What the Grant County card answers that this page doesn't:
It's a real map. Click any county in the country and see how it grades — that part costs nothing, and you can compare Grant County against its neighbors before you spend a dollar.
Alfalfa County · Beaver County · Blaine County · Cimarron County · Dewey County · Ellis County · Greer County · Harmon County
Last verified July 2026 · Not legal advice — confirm current rules with the county, the state, and a professional before buying or building.