Off-grid site report
Cass County, IA
41.2766, -94.8681 · 1,303 ft elevationRead this before you act on anything below. This is my researched starting point for Cass County, IA, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.
The local rulesCass County, IA
Zoning & raw-land occupancy
Varies locallyCass County has an active countywide Zoning Ordinance with a Board of Adjustment; existing acreages must be at least one acre, and new acreages split after September 1, 2005 must be at least three acres. New rural parcels also need an E-911 address from the county. source
Dwellings, tiny homes & RVs
Unclear - verifyNo Cass County-specific tiny-home or RV occupancy rule was found on official sources; state manufactured-home protections apply as a baseline. Confirm with the county Zoning Administrator. source
Building permits & codes
Generally allowedCass County requires an Application for Building Permit for building, rebuilding, altering, enlarging, or moving any structure, issued through the Zoning and Planning office. source
Septic & composting toilets
Generally allowedSeptic permitting for Cass County is administered by Guthrie County Environmental Health under an interlocal contract; it involves a percolation test, a permit, and a final inspection. Composting toilets fall back to state DNR rules as no separate county ordinance was found. source
Greywater reuse
Unclear - verifyNo Cass County or Guthrie-administered greywater ordinance was found; this is unconfirmed and falls back to general state DNR wastewater rules. Ask the Environmental Health office before installing a system.
Rainwater harvesting
Unclear - verifyNo Cass County ordinance addressing rainwater catchment was found on the official county site. Confirm with Zoning/Building before tying a cistern system to a dwelling.
Private wells & water rights
Generally allowedDrilling a well requires both a state and county permit, processed through Environmental Health working with the driller, and a water test as part of the permit; heat pump wells also need a permit. Iowa DNR runs the technical permitting system, IWIS, administered locally. source
Living disconnected from utilities
Varies locallyNo Cass County ordinance banning off-grid or utility-disconnected living was found, but building permits and septic/well permitting still apply to any occupied dwelling. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.9 hrs/day
- Worst month (sizes an off-grid array)
- 3.6 hrs/day
- Yearly output per 1 kW of panels
- 1,436 kWh
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Weather1991-2020
- Precipitation
- 37 in/yr
- Snowfall
- 27 in/yr
- Heating degree days
- 6,772 (cold)
- Frost-free season
- May 2 to Sep 27
How far help isstraight-line
- Hospital
Cass Health - 10.7 mi
- Fire station
Cumberland Fire Department - 0.2 mi
- Hardware store
Cappels Ace Hardware - 11.8 mi
- Grocery
Economy Food Market - 5.4 mi
From OpenStreetMap. Road miles will be longer, often much longer in hill country.
Plan this spot
These open with this location's real numbers already filled in (ZIP 50843).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Cass County, IA?The rules above are the jurisdiction. The land check runs the parcel itself: flood zone, soils and septic suitability, wetlands, slope, access, climate, and these verdicts, from a parcel number or coordinates.
Check a parcel →Share or save this report:New report
Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.
New here, or not sure where this fits? Start here walks through the whole thing in order.