Traill County, North Dakota
Hillsboro is a city in Traill County, North Dakota. Hillsboro adopts its own zoning, so inside its limits Hillsboro’s rules apply, not the county’s. Septic permits inside Hillsboro come from Hillsboro. 14 rules below are quoted from official sources and independently re-checked, most recently on November 6, 2026. Rules for unincorporated land are on the Traill County page.
Buildings and structures in Hillsboro city.
“The erection, construction, enlargement, alteration, repair, moving, removal, demolition, conversion, occupancy, equipment, uses, height, area and maintenance of buildings or structures”
Completed work requiring a Hillsboro building permit.
“Upon completion of any work requiring a building permit, the building inspector conducts an on-site inspection of the work specified in the building permit.”
Any structure, building, or land that has been built or structurally altered so as to require a building permit, inside Hillsboro city.
“A certificate of compliance is required before any structure, building, or land can be used or occupied”
Structures and land inside Hillsboro city limits.
“These title shall be known as the “Hillsboro Land Development Ordinance” for the City of Hillsboro, North Dakota.”
Residential dwelling units inside Hillsboro city.
maximum residential dwelling-unit height: <= 35 feet
“No residential dwelling unit shall exceed thirty five (35) feet in height.”
Mobile-home parks inside Hillsboro city.
“Mobile home parks (not to include recreational vehicles)”
Private wastewater disposal systems inside Hillsboro city where public sewer is unavailable under City Code § 7.0303(4).
“Before commencement of construction of a private wastewater disposal system, the owner shall first obtain a written permit signed by the superintendent.”
Construction of a private wastewater disposal system inside Hillsboro city where public sewer is not available under City Code § 7.0303(4).
private wastewater disposal permit and inspection fee: 100 USD (Paid to the City when the application is filed.)
“A permit and inspection fee of one hundred dollars ($100.00) shall be paid to the City at the time the application is filed.”
Installation of a private wastewater disposal system permitted by Hillsboro city.
“The inspection shall be made within a reasonable amount of time following the receipt of notice by the superintendent.”
Houses, buildings, or properties used for human occupancy, employment, recreation, or other purposes inside Hillsboro city.
public sewer distance from property line: <= 200 feet (Also stated as 61 meters; applies under the North Dakota plumbing code.) · connection deadline after official notice: <= 90 days
“within ninety (90) days after date of official notice to do so, provided that said public sewer is within 200 feet”
Agricultural divisions of land inside Hillsboro city for subdivision-regulation purposes.
minimum agricultural division parcel size: >= 5 acres (No new street may be involved.)
“The division of land for agricultural purposes into lots or parcels of five (5) acres or more and not involving a new street”
Subdivision of land inside Hillsboro city.
agricultural division exclusion lot size: >= 5 acres (Only where no new street is involved.)
“The subdivider shall prepare a preliminary plat and file an application for approval with the Planning and Zoning Commission.”
Hillsboro building permits.
“The City of Hillsboro and Red River Municipal Inspections have separate fee schedules.”
Building-permit applicants inside Hillsboro city.
“Your building permit will either be approved by Planning & Zoning at the next meeting or sent to our Building Inspector.”
We looked and could not find an official answer yet. Silence is not permission; ask Hillsboro or Traill 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 Hillsboro publishes no rule on the point, not that none exists. Traill County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Hillsboro means bringing your own water and power. The kit we’d start with:
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