Off-grid site report

Genesee County, MI

43.1762, -83.7748 · 696 ft elevation

Read this before you act on anything below. This is my researched starting point for Genesee County, MI, 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 rulesGenesee County, MI

Zoning & raw-land occupancy

Varies locallyGenesee County has no countywide zoning ordinance; each township or city (Genesee Township, Gaines Township, Mundy Township, etc.) adopts and enforces its own zoning under the state Zoning Enabling Act. Contact the specific township for your parcel. source

Dwellings, tiny homes & RVs

Varies locallyRules on tiny homes, RVs as dwellings, and manufactured homes are set township-by-township; Genesee Township enforces the 2021 Michigan Building Code and requires applications for manufactured home setup, but no countywide standard was found. source

Building permits & codes

RestrictedBuilding permits are issued and enforced by individual township/city building departments (not the county), applying the state construction code; the county's Planning Department coordinates regional planning but does not issue permits. source

Septic & composting toilets

RestrictedThe Genesee County Health Department's Environmental Health division issues septic permits countywide under the state Public Health Code, requires a soil evaluation before permitting, and has in the past enforced a seasonal installation moratorium; confirm current timing rules directly with the Health Department. source

Greywater reuse

Unclear - verifyNo Genesee County-specific greywater ordinance or guidance was found; this likely defaults to the state plumbing/residential code administered by LARA. Confirm with the county Health Department if in doubt.

Rainwater harvesting

Unclear - verifyNo county-specific rainwater harvesting rule was found; this likely falls under the state plumbing code framework rather than any Genesee County ordinance.

Private wells & water rights

RestrictedPrivate wells require a permit through the Genesee County Health Department's Environmental Health division, which administers the state Water Well Construction Code locally, including testing and inspections. source

Living disconnected from utilities

Unclear - verifyNo explicit county ordinance bans or permits full utility disconnection, but sanitary waste disposal plans must be approved by the Health Department before a building permit is issued at the township level, effectively requiring an approved well and septic setup regardless of grid connection.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 4.4 hrs/day
Worst month (sizes an off-grid array): 2.0 hrs/day
Yearly output per 1 kW of panels: 1,264 kWh

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Weather1991-2020

Precipitation: 32 in/yr
Snowfall: 29 in/yr
Heating degree days: 7,057 (cold)

How far help isstraight-line

Hospital Hurley Medical Center: 11.3 mi
Fire station Mount Morris Fire Dept.: 5.7 mi
Hardware store Menards: 0.4 mi
Grocery Walmart Supercenter: 0.2 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 48420).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

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.