Off-grid site report

Chester County, PA

39.7410, -75.9155 · 427 ft elevation

Read this before you act on anything below. This is my researched starting point for Chester County, PA, 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 rulesChester County, PA

Zoning & raw-land occupancy

Varies locallyChester County has no countywide zoning ordinance; each of the ~73 townships/boroughs sets its own rules under the state Municipalities Planning Code. You must check with your specific municipality. source

Dwellings, tiny homes & RVs

Varies locallyTiny homes on permanent foundations generally fall under the state UCC via your municipal codes office, while chassis-mounted units are usually classed as manufactured homes and often barred from full-time use outside manufactured home communities; RVs are typically limited to RV parks/campgrounds under most local ordinances. source

Building permits & codes

RestrictedPennsylvania's statewide Uniform Construction Code applies, but permits are issued and enforced at the municipal level (township, borough, or city), not by Chester County itself. source

Septic & composting toilets

RestrictedThe Chester County Health Department issues all on-lot septic permits countywide under PA's Act 537, requiring percolation tests and soil test pits; a Sewage Enforcement Officer is assigned per municipality. source

Greywater reuse

RestrictedNo Chester County-specific greywater ordinance was found; greywater appears to be treated as part of the same Act 537 on-lot sewage framework CCHD enforces, so it inherits the state baseline. Confirm specifics with CCHD.

Rainwater harvesting

Unclear - verifyNo county- or CCHD-specific rainwater harvesting rule was found; treat it as governed by the general Pennsylvania state baseline (fine for non-potable use, not an approved sole potable source) and confirm with your municipality if relevant to a permit.

Private wells & water rights

RestrictedChester County Health Department is the sole authority requiring a permit for any well construction, repair, or modification countywide, and county rules explicitly bar townships or boroughs from imposing separate well regulations. Permits expire if construction hasn't started within CCHD's stated window.

Living disconnected from utilities

Varies locallyNo county-level rule mandating grid connection was found; whether you can legally live fully off-grid (no electric hookup, etc.) depends on your specific township or borough's occupancy rules, so ask your municipal building/codes officer.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 4.8 hrs/day
Worst month (sizes an off-grid array): 3.2 hrs/day
Yearly output per 1 kW of panels: 1,395 kWh

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Weather1991-2020

Precipitation: 46 in/yr
Snowfall: 8 in/yr
Heating degree days: 4,652 (moderate)
Frost-free season: Apr 14 to Oct 27

How far help isstraight-line

Hospital Upper Chesapeake Hospital: 27.6 mi
Fire station Union Fire Company #1: 4.5 mi
Hardware store Rising Sun Supply: 6.5 mi
Grocery Redner's: 4.9 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 19351).

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 21, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.