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

Yes. Washington County requires a permit for construction covered by its building-permit program¹. The permit must be issued before construction begins; starting first doubles the application fee¹. New-home applicants must bring two hard-copy plans before the application can proceed³.

Washington County administers the adopted 2018 building codes with stated changes, including omission of the residential automatic-fire-sprinkler section⁵. County-administered building and related construction permits require inspections, with at least 24 hours' notice; state inspections must pass before the related county inspection is scheduled¹. The signed permit application authorizes the county inspector or an authorized representative to enter the property for inspections⁸. Ask Planning & Zoning which permit types and inspection sequence fit the proposed work³. Nebraska's contractor-registration exemption for owners working on their own property does not waive county building permits, zoning approvals or inspections⁹.

Washington County Planning & Zoning is the first stop for county building permits, inspections and zoning questions³. The office is at 1555 Colfax Street in Blair and can be reached at (402) 426-6872 or planning@washingtoncountyne.gov³.

The county publishes an online process: register through the permitting portal, obtain county approval of the contractor registration and then begin the permit application³. New homes require two hard-copy plans, while accessory buildings with interior walls require two plans measuring 24 by 36 inches for the shell and interior³. The reviewed materials did not provide a general fee schedule; the known fee rule is that starting before permit issuance doubles the application fee¹. Electrical permitting and inspections go through the Nebraska State Electrical Division¹.

This county office covers the unincorporated county; inside a city or village exercising zoning jurisdiction, the municipality's rules replace county zoning². We could not confirm who issues building permits inside each city or village, so ask the city office, while septic permits and county inspections for unincorporated addresses stay with county Planning & Zoning⁴.

Yes. Washington County zoning applies in unincorporated areas outside incorporated city or village limits and outside municipal zoning or extraterritorial jurisdiction². A city or village exercising jurisdiction applies its own rules instead, so the parcel's mailing address does not settle which office controls². Ask Planning & Zoning to identify the district and governing jurisdiction before relying on a proposed use³.

For a dwelling in the A-1 district, the minimum lot is 3 acres and the minimum width is 200 feet; the area may drop to 2 acres with public water². Residential Mixed Use development has a 50-foot perimeter setback and maximum building coverage of 60% of net developable area, with a possible additional setback from a heavily traveled road². These are district-specific standards. A manufactured home in unincorporated Washington County must have at least 900 square feet of above-grade floor area if single-story, at least an 18-foot exterior width and a continuous permanent foundation, and must meet the standards for site-built single-family homes in its district². A general minimum size for site-built homes and an accessory-dwelling rule could not be confirmed; ask Planning & Zoning what applies to the parcel³.

Washington County performs county septic inspections and requires septic information in its application process, while Nebraska Title 124 governs onsite wastewater systems statewide and allows more stringent local requirements¹. County septic review applies in the unincorporated county; Blair, Fort Calhoun, Kennard and Herman have their own offices and policies, so confirm which office serves the address⁴. Check local requirements separately because state construction permits or general-permit coverage apply in circumstances defined by Title 124⁶.

The county lists partial and final septic inspections and requires a plot plan showing the tank, laterals, wells, geothermal wells and perc-test locations⁶. Title 124 also requires periodic tank inspection by a qualified pumper, engineer or registered environmental health specialist under its sludge and scum thresholds⁶. A new permit or permit coverage can be triggered when an existing system fails, improperly discharges, is materially changed or encounters specified site changes⁶. Only about 32.3% of county soils are rated without severe limitations for a conventional drain field, so evaluate the site before fixing the homesite¹⁰.

Inside an approved Washington County RV/M Overlay District, recreational-vehicle occupancy is limited to 180 consecutive days and 180 days in a calendar year². The overlay is for a recreational-vehicle park or marina-resort project, requires approval as a single project and has a 10.01-acre minimum lot². Buildings, structures and uses in that overlay must comply with county approvals before the county will issue permits or a certificate of occupancy².

Those overlay rules do not establish a general RV-occupancy rule for every private parcel, so ask Planning & Zoning for a written parcel-specific answer³. A specific county tiny-home occupancy rule also could not be confirmed. Tiny homes remain subject to the governing zoning jurisdiction and adopted building codes^2,5. A facility generating wastewater must use a Title 124-compliant onsite system or connect to wastewater works; cesspools, dry wells, leaching pits and seepage pits are prohibited⁶.

1. Confirm whether county or municipal zoning governs the parcel, then ask Planning & Zoning for the district and allowed residential use^2,3.
2. Verify the district's lot, setback and coverage standards before placing the home².
3. Discuss the septic layout and plot plan before fixing the homesite; the county requires the tank, laterals, wells, geothermal wells and perc-test locations⁶.
4. Register through the county portal, obtain approval of the contractor registration and begin the permit application³.
5. Submit two hard-copy plans for a new home and obtain the permit before construction starts^1,3.
6. Arrange electrical permitting and inspections with the Nebraska State Electrical Division, and pass required state inspections before related county inspections¹.
7. Give at least 24 hours' notice for county inspections and complete every required inspection before permit expiration¹.

Start with jurisdiction, zoning and legal lot status. Washington County regulates covered subdivision and platting in unincorporated areas outside city or village subdivision jurisdiction; divisions whose smallest new parcel is more than 10 acres are excluded from the county definition of subdivision¹¹. Confirm approval history before assuming a tract is buildable. Municipal zoning may supersede county zoning where a city or village exercises jurisdiction².

A new, relocated or altered driveway connecting to a state highway requires a Nebraska highway permit¹². A separate county driveway permit could not be confirmed, so ask Planning & Zoning and the road authority serving the parcel about access³. Check septic suitability early because only about 32.3% of county soils are rated without severe limitations for a conventional drain field¹⁰. All development in a Nebraska floodplain requires a permit¹³. Private-well permitting and a countywide water-connection rule could not be confirmed; ask Planning & Zoning which authority applies³.