Off-grid site report
Dallas County, IA
41.8511, -93.9211 · 1,047 ft elevationRead this before you act on anything below. This is my researched starting point for Dallas 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 rulesDallas County, IA
Zoning & raw-land occupancy
Varies locallyDallas County Chapter 45 zoning applies only to unincorporated areas; whether off-grid dwelling is permitted or conditional depends on the parcel's zoning district. Land inside any incorporated city or town follows that town's own zoning instead. source
Dwellings, tiny homes & RVs
Unclear - verifyNo county-specific rule on tiny homes or RVs used as dwellings was found; the general Chapter 47 construction code applies to any structure used as a dwelling. Call Dallas County Planning & Development to confirm treatment of tiny homes or RV occupancy on raw land. source
Building permits & codes
RestrictedDallas County Planning & Development requires a building permit under Chapter 47, with detailed plans including egress window specs for bedrooms. Confirm current fees and process directly with the county office. source
Septic & composting toilets
Generally allowedDallas County Environmental Health administers septic permitting under county Chapter 31 and state DNR rules, requiring soil analysis, approved design, and an approved contractor; a septic permit is required before a building permit issues if sanitary facilities are involved. Composting toilets are not separately addressed, so ask Environmental Health directly. source
Greywater reuse
Unclear - verifyNo Dallas County or Iowa DNR rule specifically addressing greywater reuse was found. Ask Dallas County Environmental Health whether greywater falls under septic (Chapter 31) permitting.
Rainwater harvesting
Unclear - verifyNo Dallas County or Iowa DNR page was found addressing residential rainwater catchment, permitted or restricted. Not confirmed either way; ask Dallas County Environmental Health or Planning & Development.
Private wells & water rights
Generally allowedPrivate wells require a construction permit through Dallas County Environmental Health under the state's Iowa Well Information System, and work must be done by the owner or an Iowa DNR certified well contractor. source
Living disconnected from utilities
Varies locallyNo county ordinance was found prohibiting off-grid utility disconnection, but occupying a dwelling still requires building, septic, and well permits regardless of utility hookups. The county separately regulates small wind energy systems under its own Chapter 48 ordinance; no solar-specific ordinance was found. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.9 hrs/day
- Worst month (sizes an off-grid array)
- 3.1 hrs/day
- Yearly output per 1 kW of panels
- 1,415 kWh
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Weather1991-2020
- Precipitation
- 34 in/yr
- Snowfall
- 24 in/yr
- Heating degree days
- 6,921 (cold)
- Frost-free season
- Apr 25 to Oct 5
How far help isstraight-line
- Hospital
Dallas County Hospital - 8.9 mi
- Fire station
Woodward Fire House - 0.8 mi
- Hardware store
Ace Hardware - 13.1 mi
- Grocery
Hy-Vee - 9.6 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 50276).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Dallas 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.