Off-grid site report
Bremer County, IA
42.7733, -92.3949 · 1,034 ft elevationRead this before you act on anything below. This is my researched starting point for Bremer 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 rulesBremer County, IA
Zoning & raw-land occupancy
Varies locallyBremer County's countywide Zoning Ordinance (No. 22-07) divides the county into seven districts; bona fide agricultural land/buildings are exempted under Iowa Code Chapter 335, but non-agricultural dwellings need a county zoning permit. source
Dwellings, tiny homes & RVs
Unclear - verifyA one-acre minimum lot size applies if not on common water/sewer, and septic must be approved by the county Board of Health, but whether tiny homes or RVs-as-dwellings are accepted isn't confirmed on the county's official site; ask Building, Zoning & Sanitation. source
Building permits & codes
RestrictedThe county requires a zoning permit for most structures, including many under 120 square feet, and fences under 6 feet still need permits while over 6 feet is not allowed in residential districts; inspections need 24-hour notice. source
Septic & composting toilets
Generally allowedThe county's Board of Health runs its own septic ordinance and a Time-of-Transfer inspection program targeting illegal straight-pipe systems; composting toilets aren't addressed directly on county pages, so confirm with Environmental Health. source
Greywater reuse
Unclear - verifyNo Bremer County or Iowa DNR page specifically addresses residential greywater reuse; ask the county's Building Zoning & Sanitation or Environmental Health office directly.
Rainwater harvesting
Unclear - verifyNo county or Iowa DNR source was found specifically permitting, restricting, or prohibiting residential rainwater catchment.
Private wells & water rights
Generally allowedBremer County Building Zoning & Sanitation handles well testing, closure, and renovation tied to the state well program, and requires a Groundwater Hazard Statement at property transfer. source
Living disconnected from utilities
Varies locallyNo county rule bans disconnecting from utilities outright, but dwellings still must meet the one-acre minimum lot size (if unserved), septic approval, and building permit requirements. source
Sun30-year normals
- Peak-sun hours, annual average
- 4.6 hrs/day
- Worst month (sizes an off-grid array)
- 2.5 hrs/day
- Yearly output per 1 kW of panels
- 1,353 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 37 in/yr
- Snowfall
- 33 in/yr
- Heating degree days
- 7,514 (severe)
- Frost-free season
- Apr 27 to Oct 5
How far help isstraight-line
- Hospital
Waverly Health Center - 5.7 mi
- Fire station
Waverly Fire Department - 5.1 mi
- Hardware store
Miller's True Value Hardware Store - 5.7 mi
- Grocery
Fareway - 5.1 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 50677).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Bremer 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.