Buying Land in Pennsylvania: The State-Level Rules Behind Every County

Zoning is optional in Pennsylvania, and a lot of rural townships have none

The Pennsylvania Municipalities Planning Code (MPC, 53 P.S. § 10101 et seq.) is the statewide enabling statute for local land-use control, but its grant of authority to municipalities is permissive, not mandatory -- a township, borough, or city may adopt zoning, subdivision, and land development ordinances, but nothing in state law requires it to. Pennsylvania has roughly 2,560 municipalities, and a meaningful share of them, concentrated in rural areas, have never adopted a zoning ordinance at all.

Research from the Center for Rural Pennsylvania (a research agency of the state legislature) has repeatedly found a sharp urban-rural split: as of a mid-2010s analysis, about 68% of Pennsylvania municipalities overall had adopted zoning, but municipalities in rural counties were far less likely to have zoning (roughly one-third) than those in urban counties (over 80%). A separate Center for Rural Pennsylvania planning-tools survey found a similar pattern, with just over half of responding municipalities reporting a zoning ordinance and wide regional variation in adoption of zoning, comprehensive plans, and subdivision regulations.

The practical upshot for a land buyer: never assume a rural Pennsylvania parcel is zoned at all. Confirm directly with the township or borough whether it has adopted an MPC zoning ordinance -- if it hasn't, there may be no zoning-based use restriction on the parcel whatsoever (though other rules, like the state Uniform Construction Code or subdivision ordinances, can still apply). See our national guide to zoning for how that conversation should go once you know which situation you're in.

Septic in Pennsylvania: a local permit, decided by a certified individual

Pennsylvania's septic framework -- what the state calls "onlot sewage disposal systems" or OLDS -- runs under the Pennsylvania Sewage Facilities Act (Act 537 of 1966, as amended), with the Department of Environmental Protection (DEP) setting statewide technical standards and providing oversight, but actual permitting handled locally by each municipality, a group of municipalities, or a county acting as the "local agency."

The distinctive piece of Pennsylvania's system is the Sewage Enforcement Officer (SEO): a DEP-certified individual, typically employed or contracted by the municipality (sometimes by a county health department in the handful of counties that run one), who personally conducts or oversees the soil probe and percolation testing on your specific parcel, reviews the proposed system design against that soil data, and approves or denies the permit application. Under Act 537's implementing regulations, the SEO has a set statutory window (60 days for a complete application) to act. Because SEOs are certified individually rather than credentialed as an "office," the same municipality can have more than one, and scheduling a site visit is a real variable to plan around in your due-diligence timeline.

See our national guides to perc tests and septic systems for the general process -- Pennsylvania's version of that process is this same sequence, just administered through a certified SEO rather than a county health department.

Split estates: owning the surface doesn't mean owning what's underneath

Pennsylvania has a long history, dating to 19th-century coal and oil development, of severing subsurface rights from the surface. Pennsylvania courts recognize as many as three distinct estates in the same tract -- the surface estate, the mineral estate (coal, oil, and gas), and, in coal country, a separate "support estate" covering the right to have the surface physically supported by the strata beneath it -- and any of the three can be owned, sold, leased, or inherited independently of the others. This is especially prevalent across the Marcellus and Utica Shale region of western and northern Pennsylvania, where oil and gas rights were frequently severed from the surface decades before shale drilling made them valuable, and the current mineral owner may have no connection to, or awareness from, the current surface owner.

For a land buyer, this means the deed itself is the starting point, not the answer: it should state whether subsurface rights were previously severed, but a title search back through the chain of title at the county Recorder of Deeds is the only reliable way to confirm what you are and are not buying. If oil, gas, or coal rights were severed before you buy, the mineral owner (or their lessee) generally retains a legal right to access and use the surface as reasonably necessary to extract those minerals -- which can matter enormously for well placement, driveway location, or timber if the tract sits over an active or leasable formation. An attorney experienced in Pennsylvania oil and gas or title law is worth the cost before you close on any parcel where mineral ownership isn't clearly consolidated with the surface.

What this page does not tell you

Everything above is the state-level layer. Whether your specific township has zoning at all, what a district permits, exact setback distances, the SEO's testing schedule and fee, and whether mineral rights on your specific parcel have ever been severed are all questions that only your target township, county Recorder of Deeds, and a local SEO or title attorney can answer. See our national guides to zoning, perc tests, and septic systems for how those conversations typically go.