Off-grid site report

Wasatch County, UT

40.5033, -111.4139 · 5,627 ft elevation

Read this before you act on anything below. This is my researched starting point for Wasatch County, UT, 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 rulesWasatch County, UT

Zoning & raw-land occupancy

RestrictedWasatch County has adopted countywide zoning, so every parcel is in a zoning district that determines allowed land uses, including temporary or raw-land occupancy. This is set by the county Planning Department via the zoning map and code. source

Dwellings, tiny homes & RVs

Unclear - verifyNo official county page specifies tiny-house or full-time RV living standards; the state residential building code is the likely baseline for foundation dwellings. Confirm RV-as-residence rules with the Planning Department for your specific zone. source

Building permits & codes

RestrictedThe county Building Department requires a full permit packet including a septic letter if applicable and site/landscape plans, administered under the state building code baseline. source

Septic & composting toilets

RestrictedThe county Health Department requires a wastewater permit under the state's R317-4 framework, with proof of an approved well or public water letter, and permits are time-limited from date of approval. source

Greywater reuse

RestrictedNo distinct Wasatch County greywater ordinance was found; this likely inherits the state greywater rule administered through the local health department, but that isn't confirmed as county-specific.

Rainwater harvesting

Generally allowedNo county-specific restriction was found on rainwater collection; state law is the governing baseline countywide.

Private wells & water rights

RestrictedCounty meeting coverage indicates a minimum lot size (reported as five acres, with discussion of four) for a culinary well, with smaller parcels needing a no-subdivide deed and water board/fire district approval; this is layered on the state well-permitting process. The acreage rule itself is not confirmed on an official county ordinance page, so verify with Planning or the state Division of Water Rights.

Living disconnected from utilities

Unclear - verifyOff-grid power doesn't appear separately restricted, but occupancy approval is tied to proving an approved water source and, where applicable, septic approval, per the county Building Department's process. source

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.5 hrs/day
Worst month (sizes an off-grid array): 3.7 hrs/day
Yearly output per 1 kW of panels: 1,496 kWh

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Weather1991-2020

Precipitation: 16 in/yr
Snowfall: 73 in/yr
Heating degree days: 6,184 (cold)

How far help isstraight-line

Hospital Park City Hospital: 13.1 mi
Fire station Jordanelle Fire Station: 9.2 mi
Hardware store Ace Hardware: 0.3 mi
Grocery Lee's Marketplace: 0.5 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 84032).

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.