Pennsylvania Survey Guide

How to Find Property Lines in Pennsylvania: Records First, Survey When It Matters

Updated September 2, 2026 · 3 min read · Property Owner Questions

Quick answer

Use the county assessment map to identify the parcel, then obtain the deed and any recorded plan from the county recorder of deeds. Pennsylvania parcel lines are research aids. If you need corners or a line for a fence, sale, easement, construction, or disagreement, hire a Pennsylvania Professional Land Surveyor.

Pennsylvania's search begins at the county level

There is no single statewide property-line portal that replaces county records. County assessment systems help identify the parcel and neighboring owners. The Pennsylvania State Archives' land-record guide directs private deed research to the recorder of deeds for the appropriate county. Online coverage varies, so keep the parcel number, instrument number, and plan-book reference together.

A deed may identify a lot on a subdivision plan, but many Pennsylvania properties use metes-and-bounds descriptions. Those descriptions may call to roads, streams, walls, stones, adjoining tracts, or earlier conveyances. Reading the words is useful; placing them on the ground requires reconciling the complete record and physical evidence.

What a Pennsylvania surveyor is licensed to do

The state's Engineer, Land Surveyor and Geologist Registration Law defines land surveying to include establishing or retracing property lines, locating property-corner monuments, and preparing deed descriptions. That is the step a parcel viewer does not perform.

For a proposed lot split, boundary adjustment, or subdivision, contact the municipality before commissioning a final plan. Article V of Pennsylvania's Municipalities Planning Code puts subdivision and land-development plat approval into the local ordinance process and provides for county planning review in specified cases.

Assemble the record in this order

  1. Find the county assessment record and parcel identifier.
  2. Pull the current deed from the recorder of deeds.
  3. Follow every plan, prior deed, easement, and right-of-way reference.
  4. Check your purchase file for a prior survey or mortgage-related drawing.
  5. Photograph fences, walls, pins, drives, streams, and other possible evidence.
  6. State the decision and deliverable when requesting an estimate.

Ask for a deliverable that solves the actual problem

Ask for a deliverable that solves the actual problem
ProblemUseful request
Fence or landscapingBoundary survey with the relevant corners and, if needed, the build line staked.
Possible encroachmentSigned survey showing the improvement in relation to the retraced boundary.
Purchase of acreageBoundary survey that addresses access, record acreage, occupation, and visible improvements.
Parcel changeSurvey and plan prepared for the specific municipal approval and county recording process.

Verify before relying on the work

Use Pennsylvania's official license verification service to confirm the responsible surveyor. Ask who will sign and seal the result, what corners will be marked, and whether the estimate includes a plan suitable for the intended permit, title, or recording use.

Find firms in the Pennsylvania land surveyor directory. A survey provides professional boundary evidence; questions about ownership, adverse possession, or legal rights require legal advice.

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Frequently Asked Questions

Where do I find Pennsylvania property records?

Start with the county assessment parcel record, then use the county recorder of deeds for the current deed and referenced plans. Recording systems and online access differ by county.

Can a Pennsylvania tax map be used to place a fence?

No. It can identify the parcel and neighboring records, but locating or retracing a property line is within Pennsylvania's regulated practice of land surveying.

Why might a Pennsylvania deed not show a simple lot number?

Many properties are described by metes and bounds rather than a modern recorded subdivision lot. A surveyor may need adjoining deeds, older plans, monuments, and occupation evidence to retrace that description.