Off-Grid Living in Lehigh County, Pennsylvania

If you're looking at raw land in Lehigh County, Pennsylvania and dreaming of going off-grid, the first thing I want you to understand is that Lehigh County itself doesn't have a countywide zoning ordinance. That's not a loophole, it's just how Pennsylvania's Municipalities Planning Code works here: each of the county's cities, boroughs, and 19 townships adopts its own zoning ordinance, appoints its own Zoning Officer, and sets up its own Zoning Hearing Board. So when someone asks me "is off-grid living legal in Lehigh County," my honest answer is: it depends entirely on which township or borough your parcel sits in.

The county's role is mostly coordinating, not regulating. The Lehigh Valley Planning Commission (LVPC) reviews subdivision and land development for municipalities that haven't adopted their own ordinance, but the LVPC itself is advisory, it doesn't make law. So don't expect the county or the LVPC to give you a yes/no on tiny homes or off-grid dwellings, you need your specific municipal zoning office.

Same story with dwellings, RVs, and tiny homes: there's no countywide minimum size or occupancy rule I can point you to. Pennsylvania's Uniform Construction Code (based on the IRC) sets a statewide baseline where it's been adopted, but permitting and inspection are handled township by township. Some townships even opt out of certain services like inspections, so check locally.

Septic is where the state's Sewage Facilities Act (Act 537) comes in, but again enforcement is local: each township appoints its own Sewage Enforcement Officer (SEO) who issues on-lot sewage permits under DEP regulations (25 Pa. Code Ch. 72). I didn't find a separate greywater ordinance for the county, so I'd assume it falls under that same SEO/DEP framework until your township tells you otherwise.

Rainwater harvesting for non-potable use looks fine under the general state baseline, but I found nothing suggesting it can replace an approved potable water supply for a permanent residence.

Private wells are a bright spot: Pennsylvania doesn't regulate private homeowner wells at the state level, and the county's Agricultural Center helps residents get well-water test kits, as does the DEP's Bethlehem District Office covering Lehigh and Northampton counties.

Finally, on living disconnected from utilities entirely: there's no state or county law forcing you to hook up to the grid, water, or sewer. Whether your township requires a utility connection as a condition of an occupancy permit is a local call, so this is one more thing to confirm directly with your municipality before you buy land or start building.