Hettinger County, North Dakota requires a county planning and zoning building permit, and the Auditor/Treasurer's office supplies the application12. County zoning also controls lot size, setbacks and some residential uses on unincorporated land345. A separate construction-code permit, building inspections and a certificate of occupancy could not be confirmed; ask the Auditor/Treasurer before work begins.
At a glance
- Building permit
- County planning and zoning building permit required12
- Zoning
- Yes, in the unincorporated county planning area36
- Septic permit
- Required through the local public health unit78
- RV living
- Temporary occupancy is regulated; the general private-land rule is unconfirmed6
- Manufactured home
- County placement rules and state installation inspections apply910
- Owner-builder exemption
- Not confirmed; ask the county before contracting work11
- Private well
- State appropriation permit above 12.5 acre-feet per year12
Who to call
Planning & zoning
Hettinger County Auditor/Treasurer
Building permit applications and support for the county Planning and Zoning Commission
336 Pacific Avenue Mott, ND 58646
Septic permits
Southwestern District Health Unit — Hettinger County
Onsite sewage applications and sewer-system inspections in Hettinger County
309 Millionaire Ave. Mott, ND 58656
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Hettinger County, North Dakota?
Yes: Hettinger County issues a planning and zoning building permit, and applications are available from the Auditor/Treasurer's office12. Treat that as a land-use approval, because the county's adopted regulations establish zoning districts, minimum lots, setbacks and height limits134514. We could not confirm that unincorporated Hettinger County separately administers the North Dakota State Building Code, conducts general building inspections or issues certificates of occupancy. North Dakota leaves building-code enforcement to jurisdictions that elect to adopt and enforce it, so ask the Auditor/Treasurer which construction-code review, if any, applies to the parcel before ordering plans or starting work15.
Who issues building and zoning permits in Hettinger County?
Start with the Hettinger County Auditor/Treasurer at 701-824-2515, 336 Pacific Ave in Mott; that office provides building permit applications and supports the county Planning and Zoning Commission2. Ask the office to identify the parcel's zoning district, the correct application and whether the proposal needs a conditional-use permit, variance or public hearing. The official zoning map is kept in the County Auditor's office, making this the practical first stop for confirming the classification of unincorporated land13. County permit fees could not be confirmed, and North Dakota's state code framework leaves permit and plan-review fee schedules to the applicable governing authority16. Request the current fee and submittal checklist before filing.
Does Hettinger County have zoning?
Yes. Hettinger County zoning applies in the county's unincorporated territorial planning area and divides land into agricultural, residential, commercial and retail, industrial, public and recreation, and floodplain-overlay districts613. In the residential district, a single-family lot must have at least 7,500 square feet with sewer or one acre without sewer; a non-farm residence in the agricultural district requires five acres, while an agricultural-use lot requires 40 acres4. Residential buildings have a 40-foot height limit except church steeples, and district-specific road, side and rear setbacks also apply145. Agricultural land and buildings receive a county land-use exception, but road setbacks and floodplain regulations still apply; North Dakota's building-code exemption also excludes agricultural buildings used as homes or by the public1718.
How do septic permits work in Hettinger County?
A new onsite wastewater system needs a permit from the applicable local public health unit before work starts, and the installer must hold a North Dakota license819. For Hettinger County, contact Southwestern District Health Unit at (701)824-3215 or visit 309 Millionaire Ave. in Mott; its Environmental Health division publishes the sewage-and-water application and performs sewer-system inspections720. Plan the site evaluation early: only about 6.6% of county soils are rated without severe limitations for a conventional drain field, so a straightforward conventional layout should not be assumed before the site is evaluated21. Off-grid sanitation does not mean an outhouse or cesspool here—Hettinger County prohibits privies, outhouses and cesspools and requires new development to connect to an approved onsite sewage system22.
Can you live in an RV or tiny home on your land in Hettinger County?
Hettinger County's regulations address temporary recreational-vehicle occupancy, but we could not confirm a general rule for camping on private land; ask the Auditor/Treasurer how the rule applies to your parcel and whether a conditional-use approval is needed62. We also could not confirm a county rule written specifically for tiny homes or a general minimum dwelling size. Manufactured and mobile homes have clearer rules: residential-district units need a permanent foundation or basement, mobile homes require county permitting, and an agricultural-district mobile or modular home on a permanent-type foundation needs at least five acres9. New residential manufactured homes must also be installed and inspected by state-licensed professionals10. Any occupied dwelling still needs an approved sewage solution because county rules prohibit privies, outhouses and cesspools22.
Building a home in Hettinger County: the steps, in order
- Call the Auditor/Treasurer at 701-824-2515 and confirm the parcel's zoning district on the official map213.
- Confirm the applicable minimum lot, setbacks, height limit and floodplain overlay before fixing the house location451423.
- Obtain the county planning and zoning building permit and ask whether a conditional-use permit, separate construction-code review or inspections apply12.
- Apply through Southwestern District Health Unit for onsite wastewater approval before installation, using a state-licensed installer208.
- Confirm road access: county rules limit highway access to four points per mile on each side, subject to the frontage-road exception24.
- For a private well, determine whether projected use exceeds 12.5 acre-feet per year and report lower-volume domestic works as required12.
What should you check before buying land in Hettinger County?
First verify the zoning map, legal access, building envelope and sewage feasibility rather than relying only on acreage. County highway access is limited to four points per mile per side, although a frontage road with a dedicated right-of-way can allow additional access24. The floodplain overlay requires residential buildings to be floodproofed above the FEMA 100-year floodplain, so establish the mapped elevation before choosing a house site23. Septic deserves particular attention because only about 6.6% of soils are rated without severe limitations for a conventional drain field21. Hettinger County averages 16.4 inches of precipitation a year, and the state requires a water-appropriation permit when annual withdrawal exceeds 12.5 acre-feet2512. For budgeting context, the effective property-tax rate is about 1.1%, with a median annual bill of $1,2512627.
Watch-outs
- A county planning and zoning building permit is required, but a separate construction-code permit, inspection program and certificate of occupancy could not be confirmed; ask the Auditor/Treasurer before construction12.
- Only about 6.6% of Hettinger County soils are rated without severe limitations for a conventional septic drain field, so make wastewater approval a purchase contingency21.
- Agricultural uses retain county land-use exceptions, but road setbacks and floodplain rules still apply, and a building used as a home is not covered by the state agricultural building-code exemption1718.
Sources
- Hettinger County Planning & Zoning (2026 county census)
- Hettinger County Auditor/Treasurer (hettingercountynd.com)
- Hettinger County Planning & Zoning (2026 county census)
- Hettinger County Land Use Regulations, quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- Southwestern District Health Unit Environmental Health (2026 county census)
- On-Site Wastewater Treatment Systems (North Dakota statewide rule), quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- Manufactured Home Installation Program (North Dakota statewide rule), quoted and re-checked
- (2026 county census)
- Water Appropriation Permits (North Dakota statewide rule), quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- Building Codes (North Dakota statewide rule), quoted and re-checked
- 2026 North Dakota State Building Code Book (North Dakota statewide rule), quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- North Dakota Century Code Chapter 54-21.3, State Building Code (North Dakota statewide rule), quoted and re-checked
- On-Site Wastewater Treatment Systems (North Dakota statewide rule), quoted and re-checked
- Southwestern District Health Unit — Hettinger County (swdhu.net)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Hettinger County Land Use Regulations, quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- Hettinger County Land Use Regulations, quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 27, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.