Off-Grid Living in Northumberland County, Pennsylvania

Northumberland County, Pennsylvania is one of those places where the county name on the map doesn't tell you much about the actual rules. That's because Northumberland County itself doesn't run zoning, and it doesn't run a septic permitting office either. Both of those functions belong to the county's 36 individual municipalities, so your off-grid plan here depends almost entirely on which township or borough your parcel sits in.

Zoning: The Northumberland County Department of Economic Development & Planning offers coordination and comprehensive-planning assistance to municipalities, but it does not adopt or enforce zoning itself. Under Pennsylvania's Municipalities Planning Code, each township or borough writes its own ordinance. Point Township and Lewis Township, for example, each have their own zoning codes; some smaller municipalities may have none at all. You have to check with the specific township or borough office before assuming anything about raw-land use, minimum lot sizes, or whether off-grid dwellings are even an allowed use.

Building permits: Most Northumberland municipalities contract permitting and inspections out to the Central Keystone Council of Governments (CK-COG), a regional code agency covering Union, Snyder, Lycoming, Centre, and "Upper Northumberland" municipalities. CK-COG enforces Pennsylvania's Uniform Construction Code (UCC) for new construction, additions, and occupancy changes to one- and two-family dwellings and accessory structures. Zoning approval and floodplain compliance are required before CK-COG will issue a building permit. There's a narrow UCC exemption for agricultural buildings like chicken coops or ag storage, but those still need zoning sign-off and an Agricultural Building Exemption Form.

Septic: Pennsylvania's Sewage Facilities Act (Act 537) puts permitting for on-lot septic systems in the hands of local agencies, which in Northumberland County means each municipality's own Sewage Enforcement Officer (SEO), not a county health department (Northumberland has none). I couldn't confirm any county- or township-specific treatment of composting toilets, so the state NSF Standard 41 baseline is what you'd be working from until a local SEO tells you otherwise.

Greywater and rainwater: I found no Northumberland-specific ordinance on greywater reuse, so this defaults to the state Act 537/DEP Chapter 73 framework, which generally treats greywater as sewage requiring a permitted disposal system. Rainwater harvesting for non-potable uses appears permitted with no added county or municipal restriction found, though it can't be your official potable water source under the state baseline.

Wells: Northumberland doesn't run its own well-permitting program. Pennsylvania's Water Well Drillers License Act (Act 610) governs the driller's licensing and reporting, and the DEP Northcentral Regional Office in Williamsport serves the county for water-testing questions.

Utilities: CK-COG confirms that hooking up to electric power isn't a condition of the building permit, and water/sewer connection depends heavily on whether you're near a borough's service area. Always ask your township zoning officer whether a certificate of occupancy carries any utility-hookup conditions, since that can vary by municipality even though it isn't a county rule.

Bottom line: in Northumberland County, "off-grid legal" is a township-by-township question wrapped in a couple of statewide baselines. Start with your specific municipal zoning office, then CK-COG for the building permit, then that municipality's SEO for septic.