Off-grid site report
Wayne County, MI
42.3641, -83.0885 · 637 ft elevationRead this before you act on anything below. This is my researched starting point for Wayne 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 rulesWayne County, MI
Zoning & raw-land occupancy
Varies locallyWayne County has no countywide zoning ordinance; each of its ~34 cities and townships sets its own zoning independently, so you must contact the specific municipality where the parcel sits. source
Dwellings, tiny homes & RVs
Unclear - verifyNo Wayne County page sets countywide standards for tiny homes or RV occupancy; this is set by each local building/zoning office, with the state's 2015 Michigan Residential Code (no Appendix Q) as the statewide baseline.
Building permits & codes
RestrictedBuilding permits are issued and enforced by local (city/township) building departments, not the county, and those departments require proof of municipal sewer connection or an approved sewage permit before a building permit can be issued. source
Septic & composting toilets
RestrictedThe Wayne County Health Department issues and inspects septic permits, including a seasonal rule requiring prior Environmental Health Unit approval for soil-based systems built between November 1 and April 30, plus a 12-month inspection before an operating permit is issued. source
Greywater reuse
Unclear - verifyNo Wayne County health department or public works page specifically addresses greywater reuse permitting; this defaults to the state Plumbing Code, so ask the county Environmental Health Unit or your municipality directly.
Rainwater harvesting
Unclear - verifyNo official Wayne County page addresses rainwater harvesting on private property; the county's Environmental Services division focuses on stormwater discharge to county drains, and the state plumbing code baseline would apply otherwise. source
Private wells & water rights
RestrictedThe Wayne County Health Department requires a permit to construct or alter a private well, including a site plan showing the well's location relative to structures, septic systems, roads, and property lines, and only a registered well contractor may do the work. source
Living disconnected from utilities
RestrictedNo ordinance explicitly bans disconnecting from utilities, but local building departments require proof of an approved sewage system before issuing building permits, and wells must be separately permitted, which in practice blocks a fully unpermitted off-grid water/waste setup.
Sun30-year normals
- Peak-sun hours, annual average
- 4.4 hrs/day
- Worst month (sizes an off-grid array)
- 2.4 hrs/day
- Yearly output per 1 kW of panels
- 1,293 kWh
JFMAMJJASOND
Weather1991-2020
- Precipitation
- 31 in/yr
- Heating degree days
- 6,168 (cold)
- Frost-free season
- Apr 18 to Oct 30
How far help isstraight-line
- Hospital
- none within range
- Fire station
Detroit Fire Department HQ - 2.8 mi
- Hardware store
Dexter Hardware and Lumber - 1.9 mi
- Grocery
Family Foods Superstore - 0.7 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 48202).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
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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.