Off-grid site report

Delta County, MI

45.8975, -86.6057 · 594 ft elevation

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

Zoning & raw-land occupancy

RestrictedDelta County itself administers countywide zoning under the state's Act 183 of 1943, unusual for Michigan where townships usually hold this power; raw land use and structure placement are governed by county zoning districts. source

Dwellings, tiny homes & RVs

RestrictedThe county ordinance separately defines and regulates mobile homes versus recreational vehicles, with anchoring rules for mobile homes; full-time RV or tiny-house-on-wheels occupancy on raw land outside a mobile home park is not confirmed in the ordinance text. source

Building permits & codes

RestrictedThe Delta County Building & Zoning Department issues permits and ties enforcement to the state Construction Code Act, including its licensing requirements for residential construction work. source

Septic & composting toilets

RestrictedSeptic systems are regulated by Public Health Delta & Menominee Counties under a local sanitary code, which includes a defined permit for earthen pit privies discharging into evaluated soils, plus a repair permit path for existing systems. source

Greywater reuse

Unclear - verifyNo Delta County or PHDM-specific greywater ordinance was found; greywater plumbing likely falls under standard state Plumbing Code review by the county building inspector, but ask the Building & Zoning Department to confirm.

Rainwater harvesting

Unclear - verifyNo Delta County-specific rainwater harvesting rule was found; this presumably follows the state plumbing code baseline for indoor non-potable use, not confirmed locally.

Private wells & water rights

Generally allowedPHDM issues well permits and requires construction to follow Michigan's Water Well Construction and Pump Installation Code (Act 368 of 1978), and recommends annual bacteria testing of residential wells.

Living disconnected from utilities

Unclear - verifyNo ordinance explicitly bans or permits full utility disconnection, but county building permits require PHDM sanitary approval, so a permitted dwelling in practice needs an approved water and sewage method; confirm specifics with the county. source

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): 2.3 hrs/day
Yearly output per 1 kW of panels: 1,294 kWh

JFMAMJJASOND

Weather1991-2020

Precipitation: 31 in/yr
Snowfall: 48 in/yr
Heating degree days: 8,267 (severe)
Frost-free season: Apr 27 to Nov 6
Design low: -9 °F

How far help isstraight-line

Hospital Schoolcraft Memorial Hospital: 16.2 mi
Fire station Thompson Township Fire Department: 13.3 mi
Hardware store Ace Hardware: 17.7 mi
Grocery Jack's Fresh Market: 18.3 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 49817).

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.