How to Find Your Property Lines in {{CITY}} (and What Survey Markers Look Like)

Most property owners never think about their property lines until a project depends on them: a new fence, a shed, an addition, or a question from a neighbor.

You can learn a lot about your property from public records and from the ground itself. This guide covers where to look for your property lines in {{CITY}}, what survey markers look like, how to find them, and when you need a licensed survey to know for sure.

Start With Your Deed and Closing Documents

Your deed contains the legal description of your property. In a subdivision, it usually refers to a lot and block on a recorded plat. Outside a subdivision, it may be a metes and bounds description, which traces the boundary with bearings and distances from a starting point.

If a survey was ordered when you bought the home, a copy is often in your closing package from your title company, lender, or closing attorney. A title commitment or policy can list recorded plats and easements that affect the property, but it is not a survey and does not show where the lines are on the ground.

If you cannot find a survey, the title company that handled your closing may have a copy. The surveyor named on an older survey may also keep records of that work.

Find the Recorded Plat for Your Lot

If your property is in a recorded subdivision, the plat is one of the most useful documents you can find. A plat is a map of the subdivision that shows each lot's dimensions and bearings, and it may also show streets, easements, and building setback lines created with the subdivision.

Plats are recorded with the {{COUNTY}} County office that records deeds and plats. Depending on the state, that office may be called the county recorder, county clerk, county auditor, or register of deeds. Many of these offices offer an online records search, and staff can help you find the recording reference listed in your deed, often a book and page number. Start your search with {{COUNTY_RECORDER_NAME}} ({{COUNTY_RECORDER_URL}}).

In some states, surveys are also filed or recorded as public records, so an earlier survey of your lot or a neighboring lot may be on file.

A plat tells you the intended size and shape of your lot. It does not show where the corners are on the ground today, or whether a fence, driveway, or building crosses a line.

Use County GIS Parcel Maps as a General Guide

Many counties publish an online GIS parcel map. You can type in an address and see an outline of the parcel over an aerial photo. You can open the {{COUNTY}} County GIS parcel map ({{COUNTY_GIS_URL}}) to look up your parcel.

These maps are useful for a general picture, but they are not a survey. GIS parcel lines are usually drawn from deed and plat records for tax and planning purposes, then laid over aerial imagery that has its own errors. They can be off by several feet, sometimes more, and many county GIS sites say so in a disclaimer.

Use a GIS map to see roughly where your lines run and which parcels border yours. Do not use it to decide where to put a fence or a building.

What Do Survey Markers Look Like?

Property corners are usually marked with a survey monument, a physical marker set by a surveyor. Markers can end up under soil, mulch, or sod over time, so they are not always easy to see. These are the most common types.

Iron Rods and Pipes

The most common corner marker is an iron rod, often rebar, or an iron pipe driven into the ground. Newer markers usually have a plastic or aluminum cap stamped with the license number or firm name of the surveyor who set them. Older markers may be plain pipes or rods with no cap. The top may be flush with the ground or a few inches below it.

Concrete Monuments

Some corners, especially at subdivision boundaries and along street lines, are marked with a concrete monument. These often have a metal disk, a rod, or a cut mark at the center that identifies the exact point.

Nails and Marks in Pavement

Where a corner falls in a driveway, sidewalk, or parking lot, a surveyor may set a PK nail or mag nail, sometimes with a metal washer stamped with the surveyor's information. A drill hole or a chiseled mark in concrete can also mark a point.

Wooden Stakes and Flagging

Wooden stakes and lath with bright flagging are temporary. Surveyors use them to make a corner or a line easy to see, often next to the permanent marker. Stakes can be knocked over or moved, so a stake by itself does not prove where a corner is.

Colored paint and small flags in a yard can also come from a utility locate, which marks buried lines before digging. Those marks show utilities, not property lines.

How to Find Property Pins With a Metal Detector

If your plat or an earlier survey tells you roughly where a corner should be, a metal detector can help you find a buried iron pin. Start at the expected spot and sweep slowly outward. Surveyors use magnetic locators for this job, and a basic detector can often pick up an iron rod or pipe.

When you get a signal, probe gently and uncover only the top of the marker. Call 811 before any digging so buried utilities can be marked first.

Never Move or Remove a Survey Marker

Do not pull up, bend, or reset a marker you find, even if it seems to be in the wrong place. Markers are evidence that surveyors rely on to retrace the boundary for you and your neighbors. Many states have laws that protect survey monuments, and a disturbed marker can make a future survey harder.

Finding a pin also does not confirm that it marks your corner. It may be from an older survey, a neighboring lot, or a construction project, or it may have been disturbed. A licensed surveyor checks found markers against the records and measurements before relying on them.

Can You Find Property Lines With a Phone App?

Phone apps that show parcel lines over a map are convenient, but they combine two kinds of error. The lines usually come from the same approximate GIS data, and the dot that shows where you are standing comes from your phone's GPS.

According to GPS.gov, the U.S. government's GPS information site, GPS-enabled smartphones are typically accurate to within about 16 feet (4.9 meters) under open sky, and less accurate near buildings and trees. On a residential lot, an error of that size can easily put a fence on the wrong side of the line.

Surveyors use survey-grade GNSS equipment with real-time kinematic (RTK) corrections, which can measure positions to within a few centimeters, along with total stations for precise angles and distances. Those measurements still have to be tied to the records and the monuments on the ground.

When You Need a Licensed Boundary or Fence Survey

Records and a metal detector can tell you a lot, but only a survey by a licensed land surveyor can reliably locate your property lines. Consider a survey when you are:

• Building a new fence or replacing an old one
• Planning an addition, shed, pool, or driveway near a property line
• Buying a home or a piece of land
• Applying for a permit or HOA approval that asks for a survey
• Resolving a question with a neighbor about where the line is
• Unable to find your corner markers, or finding markers that do not match the fence or the plat

A boundary survey locates and marks your property corners and shows the lines, improvements, and any visible encroachments on a survey drawing. A fence survey is a boundary survey focused on the line where a new fence will go, with stakes or flagging along it. When you are buying a home, a lot survey confirms property lines, easements, and structures before closing.

If you and a neighbor disagree about the line, a survey gives you both the facts. For questions about your legal rights, consult your attorney.

What Happens If Your Markers Are Missing?

Missing markers are common. Corners get pulled out during construction, buried under landscaping, or lost when a fence or driveway is replaced.

When a corner is missing, a licensed surveyor researches your deed, the recorded plat, neighboring deeds, and earlier surveys, and searches for other monuments nearby, such as your neighbors' corners. From that evidence, the surveyor determines where the missing corner belongs and can set a new marker, typically a capped iron rod, in accordance with state standards.

If the evidence conflicts, for example when two older surveys disagree, the surveyor weighs the evidence and explains the findings on the survey drawing. That is professional judgment an app or a parcel map cannot provide.

Get Your Property Lines Located in {{CITY}}

To get started, gather what you have: your property address or parcel ID, your deed, any earlier survey or the recorded plat, the reason for the survey, and any deadline, such as a fence installation date or a closing. Those details let us scope the survey and give you an accurate quote.