Cass County, North Dakota
Buffalo is a city in Cass County, North Dakota. Buffalo adopts its own zoning, so inside its limits Buffalo’s rules apply, not the county’s. Septic permits inside Buffalo come from the county and state together. 7 rules below are quoted from official sources and independently re-checked, most recently on November 6, 2026. Rules for unincorporated land are on the Cass County page.
Buildings, structures, concrete work, and excavations inside Buffalo city limits.
“No building, structure, or concrete work shall be erected, constructed, enlarged, altered, moved, relocated or excavation made thereof, or work begun thereon until a building permit has been issued by the city. All building permit applications must be submitted to the City Auditor.”
Buildings and specified appliances in Buffalo city, North Dakota.
“City of Buffalo hereby adopts said code as so modified.”
Land inside Buffalo city limits, North Dakota.
“The Planning & Zoning Commission reviews proposed amendments to zoning ordinances, site plans and plat applications”
Residential building permits inside Buffalo city limits.
Class 2A new-home permit fee: 250 USD ($25 due at application; remaining $225 waived if completed within one year) · Class 2B permit fee: 150 USD ($15 due at application) · Class 2C permit fee: 100 USD ($10 due at application) · variance request fee: 25 USD (when a variance is needed)
“A Class 2A building permit is required to be submitted for all new home construction. The fee is $250.00 with $25.00 due at the time of application. The class 2A permit expires one year from the date it is issued. If the building is not completed within one year from the date of issuance, then the remaining $225.00 must be paid. If it is completed with the one year time frame, the remaining $225.00 fee is waived. The City Council may grant one six-month extension upon the request of the applicant.”
Residential building-permit applications inside Buffalo city limits.
“This must be included with your request or it will not be reviewed.”
Buffalo does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Onsite wastewater-system installation inside Buffalo city limits when an onsite system is used.
“All installers must obtain a license from the department, which is issued at no cost, and secure a permit from their local public health unit before beginning work on a system. Installers are required to follow local codes, and licenses may be revoked for cause under NDCC 23.1-07.1-03 (Licensing).”
Installation of an onsite wastewater treatment system inside Buffalo city limits.
“secure a permit from their local public health unit before beginning work”
We looked and could not find an official answer yet. Silence is not permission; ask Buffalo or Cass County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Buffalo publishes no rule on the point, not that none exists. Cass County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Buffalo means bringing your own water and power. The kit we’d start with:
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