Building permits, zoning and land rules in Dawson County, Nebraska

For unincorporated Dawson County, start with a county zoning permit for a primary or accessory structure¹. Unlike most counties around it in Nebraska, Dawson County requires a county building permit only in some cases¹. A separate county residential building-code permit, inspection program or certificate-of-occupancy requirement could not be confirmed; ask Dawson County Planning & Zoning what applies to the project¹. Nebraska's state building code can apply by default where a jurisdiction has not adopted an authorized local code, except for construction on a farm or for farm purposes¹². Agricultural-use buildings on a farmstead of at least 20 acres producing at least $1,000 yearly receive distinct county-zoning treatment; confirm qualification before relying on it for a barn or other farm building^1,10. Inside Lexington and Cozad, the city issues building permits; septic requirements stay separate^2,3,5.

Dawson County Planning & Zoning is the starting point for primary-structure, accessory-structure and conditional-use permits in the county's jurisdiction¹. Call 308-324-4256, email mark.christiansen@dawsoncountyne.gov, or visit 2003 S. Taft St. in Lexington¹. Before preparing plans, ask the Zoning Administrator for the parcel's district, current application, fee, site-plan requirements, setbacks, applicable code and inspection requirements¹. We could not confirm a complete county submission sequence or fee schedule, so request those directly from Planning & Zoning¹.

Dawson County administers zoning in unincorporated areas and publishes regulations revised in 2026¹. Requirements differ by zoning district and proposed use¹. County zoning authority stops inside incorporated places and unincorporated areas where a city or village exercises zoning jurisdiction¹³. Lexington, Cozad and Gothenburg each administer their own city zoning^4,14,15. Septic stays with Nebraska's Onsite Wastewater Program, and Lexington and Cozad add private-sewage requirements of their own^5,6,7. We could not confirm Dawson County's district-specific minimum dwelling sizes, lot sizes, setbacks, height limits or lot-coverage limits; ask Planning & Zoning for the standards governing the parcel before choosing a building site¹.

Nebraska's Onsite Wastewater Program regulates septic design, professional certification, registration and site-specific permitting in Dawson County⁵. Most systems are constructed under Authorization by Rule without a state construction permit⁸. Systems handling at least 1,000 gallons per day, non-household wastewater or work outside Authorization by Rule require engineer-prepared plans, a construction permit before building and an operating permit before use; the $450 application fee covers both permits⁸. Ask the state program at (402) 471-4285 or DWEE.onsite@nebraska.gov which path applies before installation or repairs^5,16. Only 45.7% of Dawson County soils lack severe limitations for conventional drain fields, so arrange a site evaluation early¹¹. Septic tanks also require periodic inspection and pumping at the state's sludge and scum thresholds¹⁷. Where a dwelling is not on public sewer, the property needs an onsite system that complies with state rules; this does not establish that public water or sewer reaches any given parcel⁵. Inside Cozad, a written permit from the city's Sewer Commissioner is required before a private sewage system is built⁷.

We could not confirm long-term RV occupancy, private-land camping or tiny-home occupancy rules in unincorporated Dawson County; ask Dawson County Planning & Zoning about the proposed use and parcel before placement¹. Nebraska classifies tiny houses as manufactured homes, modular housing or recreational vehicles; park-model RVs are intended for temporary recreational, camping, travel or seasonal use rather than permanent occupancy¹⁸. State classification does not override local land-use requirements¹⁸. Every wastewater-generating dwelling or other facility needs a compliant onsite system or connection to wastewater works, including an off-grid home⁵. Cesspools, dry wells, leeching pits and seepage pits are prohibited and cannot satisfy that sanitation requirement¹⁶.

1. Confirm jurisdiction and ask Planning & Zoning for the parcel's district and allowed use¹.
2. Request the current primary-structure application, fee, site-plan requirements, setbacks and inspection sequence¹.
3. Determine whether the project qualifies for agricultural-building treatment before relying on it¹⁰.
4. If public sewer is unavailable, ask the state Onsite Wastewater Program whether Authorization by Rule or construction and operating permits apply, and arrange design and registration^5,8.
5. For a development area proposing onsite wastewater on a lot smaller than 3 acres, obtain subdivision-review approval before construction¹⁶.
6. If the site lies in a floodplain, obtain the required development permit¹⁹.
7. Complete every zoning, wastewater and inspection requirement identified by the responsible offices before occupancy^1,5.

Ask Dawson County Planning & Zoning to confirm jurisdiction and the parcel's allowed use before closing¹. Dawson County has about 23.8 people per square mile, and the nearest city of 100,000 or more is about 165 miles from the county center, so line up contractors and material delivery early¹¹. About 81.9% of county land has a slope of 15% or less, while 45.7% of soils lack severe limitations for a conventional septic drain field¹¹. Nebraska has district-administered well-permit rules in groundwater management areas; we could not confirm a single permit rule for every Dawson County parcel, so ask the natural resources district serving the site before drilling²⁰. Development in a floodplain requires a permit, and a new or altered connection to a state highway requires state approval^19,21. Dawson County's effective property-tax rate is about 1.3%, with a median annual bill around $1,989¹¹.