Unincorporated Cass County, Nebraska requires an approved permit for most construction activities within the county's jurisdiction1. Cass County enforces local building codes, requires field inspections and requires a final inspection before occupancy2,3. Nebraska regulates onsite wastewater systems, while Cass County also inspects residential septic construction before it is covered4,5.
Do you need a building permit in Cass County, Nebraska?
Yes.
Yes. Cass County requires an approved permit for most construction activities, land-use changes and structural alterations within its jurisdiction1. Cass County administers the 2012 building, residential, plumbing, mechanical and fuel-gas codes and the 2018 energy code, while the Nebraska State Electrical Division handles the 2023 electrical code, permits and inspections2. Required field inspections apply to construction subject to county codes and zoning; electrical inspections come from the state2. A final inspection and certificate of occupancy are required before occupancy3. An owner working on the owner's own property is exempt from Cass County contractor registration, but still needs the applicable building permit3. A qualifying agricultural building has a separate exemption tied to agricultural use on a farmstead of at least 20 acres producing at least $1,000 in farm products annually7.
Who issues building and land-use permits in Cass County?
Cass County Planning & Zoning is the main permit and inspection office for rural Cass County.
Cass County Planning & Zoning is the main permit and inspection office for rural Cass County6. The department administers building and inspection applications, floodplain development permits, county-road access permits, zoning changes, conditional uses, subdivision plats and other land-use changes6. Cass County also provides building-permit and inspection services by interlocal agreement for Alvo, Avoca, Cedar Creek, Elmwood, Greenwood, Manley, Murray, Nehawka, South Bend, Union and Weeping Water6. Municipal zoning and extraterritorial jurisdiction can apply separately, so confirm the parcel's governing authority before applying6. Reach Planning & Zoning at (402) 296-9359 or zoning@casscountyne.gov6. Published county fees include $250 for floodplain review and $500 for grading one through 10 acres; all listed permit fees are non-refundable7.
Does Cass County have zoning?
Cass County zoning serves rural and unincorporated land in the county's jurisdiction.
Cass County zoning serves rural and unincorporated land in the county's jurisdiction6. The county publishes an official zoning map and eight districts, and the use matrix distinguishes permitted, conditional, administrative and prohibited uses3,7. Minimum lot area varies by district and use; the district schedule ranges from 7,200 square feet for one listed category to 40 acres for others3. Building-height limits, setbacks and lot coverage depend on the applicable zoning regulation and property circumstances2. Short-term rentals require a conditional-use permit in the Residential District, so do not assume a lodging-tax registration settles zoning approval3. Ask Planning & Zoning to identify the parcel's authority, district, allowed use and dimensional standards before choosing a building site6.
How do septic permits work in Cass County?
Nebraska Title 124 governs onsite wastewater systems in Cass County, and a dwelling or other facility generating wastewater must use a compliant onsite system or connect to wastewater works.
Nebraska Title 124 governs onsite wastewater systems in Cass County, and a dwelling or other facility generating wastewater must use a compliant onsite system or connect to wastewater works4. A system not covered by a general permit needs a state construction permit before construction; the state must approve its design, and the application carries a fee4. Cass County's residential process requires inspection after the tank and laterals are set but before they are covered, plus a septic and lateral site plan and, when applicable, a percolation test5. Periodic tank inspection must use an authorized pumper, professional engineer or registered environmental health specialist9. Only about 5.9% of Cass County soils are rated without severe limits for a conventional drain field, so make septic feasibility an early purchase contingency10. Cesspools, dry wells, leaching pits and seepage pits are prohibited11. Contact Nebraska DWEE at (402) 471-4285 or DWEE.onsite@nebraska.gov12.
Can you live in an RV or tiny home on land in Cass County?
Cass County prohibits permanent residence in an RV park or campground except for the owner, manager and permanent maintenance personnel; that rule does not answer occupancy on other private land.
Cass County prohibits permanent residence in an RV park or campground except for the owner, manager and permanent maintenance personnel; that rule does not answer occupancy on other private land7. Ask Planning & Zoning about private-parcel RV occupancy and temporary camping before moving in because a broader county rule could not be confirmed6. Nebraska classifies a tiny house as a manufactured home, modular unit or recreational vehicle depending on construction; a park model is temporary living quarters and cannot be permanently affixed as a permanent dwelling8. Local zoning and building rules still determine placement and occupancy8. Any occupied dwelling producing wastewater needs a compliant onsite system or connection to wastewater works13. Cass County also requires its approval and an issued building permit before utility connections to a proposed building7.
Building a home in Cass County: the steps, in order
Confirm whether county, village or municipal extraterritorial authority governs the parcel.
- Confirm whether county, village or municipal extraterritorial authority governs the parcel6.
- Ask Planning & Zoning for the district, allowed use, lot area, setbacks and height standard2,3,7.
- Download the appropriate application and submit it with detailed site plans to Planning & Zoning1.
- Check the floodplain overlay because Cass County publishes a floodplain permit and requires flood-fringe residences to place the lowest floor at least two feet above base flood elevation7.
- Determine whether the septic design is covered by a general permit or needs a state construction permit, then leave the tank and laterals uncovered for Cass County's inspection4,5.
- Resolve county-road access with Planning & Zoning or obtain a state permit for a new, moved or altered state-highway driveway6,14.
- Call at least 24 hours ahead for county inspections, complete the state electrical inspection first when required, and obtain the certificate of occupancy before moving in3,5.
What should you check before buying land in Cass County?
Start with jurisdiction and the official zoning map because municipal extraterritorial authority can displace county zoning.
Start with jurisdiction and the official zoning map because municipal extraterritorial authority can displace county zoning3,6. Confirm the use, minimum lot area, height, setbacks and access before closing2,3,6. Ask whether a split or boundary change needs county platting or replatting review6. Check septic feasibility early because only about 5.9% of county soils are rated without severe limits for a conventional drain field10. Check the floodplain overlay because Cass County imposes elevation and documentation rules beyond the permit itself7. A new, moved or altered entrance on a state highway requires a state permit14. Cass County's effective property-tax rate is about 1.4%, with a median annual bill near $3,54510. We could not confirm a countywide private-well permit rule, so ask Planning & Zoning and Nebraska DWEE before treating a parcel as water-independent6,12.
Watch-outs
- A Cass County building permit becomes void after six months without substantial progress, and required inspections need at least 24 hours' notice5,7.
- Only about 5.9% of Cass County soils are rated without severe limitations for a conventional septic drain field, making a professional site evaluation important before purchase10.
- Permanent residence is prohibited in Cass County RV parks and campgrounds except for specified staff, but private-parcel RV occupancy, temporary camping and private-well permitting remain unconfirmed; ask Planning & Zoning and Nebraska DWEE6,7,12.
Sources
14 official pages, each quoted and re-checked · written October 5, 2026
- Zoning Permits
- Zoning Building Codes
- Cass County Zoning Regulations January 2026 Reprint
- Title 124 Onsite Wastewater Treatment Systems
- Cass County Residential Construction Packet
- Planning & Zoning
- Cass County Zoning Regulations, Reprint April 28, 2026
- Housing and Recreational Vehicle (Nebraska statewide rule)
- Nebraska Administrative Code Title 124 - Onsite Wastewater Treatment Systems
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Nebraska Administrative Code Title 124 - Onsite Wastewater Treatment Systems
- Nebraska DWEE Onsite Wastewater Program (dwee.nebraska.gov)
- Onsite Wastewater Treatment Facilities: Just for Homeowners (Nebraska statewide rule)
- Title 410, Chapter 2 - Driveway and Approach Road Permits (Nebraska statewide rule)
Written October 5, 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.
Off-grid gear
Going off-grid in Cass County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
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