The data

How to verify a property's legal description with a plat map

A property's legal description defines its boundaries, and it needs to be accurate to avoid title issues. You verify this description by comparing it to the official plat map filed with the county.

October 31, 2026 · 4 min read

Why a property's legal description is critical

The legal description is more than just an address; it is the definitive identification of the property's boundaries, dimensions, and location. It is what the title company uses, what gets recorded with the county, and what holds up in court. If it is wrong, you could be buying or selling something different than what you think, or you might end up with a messy title claim later.

An accurate legal description prevents disputes over property lines, easements, and encroachments. When you get a lead for a motivated seller, you are looking at a specific piece of land. Understanding its true legal definition is the first step in due diligence, especially if there are any questions about the property's size or access.

What a plat map is and where to find it

A plat map is a detailed drawing that shows the division of land into lots, blocks, streets, and other features. It is typically created by a surveyor and officially recorded with the local county or city recorder's office. This map provides a visual representation of the legal description, often showing exact measurements, angles, and points of reference.

You can usually find plat maps through the county recorder's office, clerk's office, or assessor's website. Many counties have digitized these records, allowing you to search by parcel number or subdivision name. Sometimes, you will need to go to the office in person to view older or less common maps. The goal is to get the official, recorded document, not just a sketch.

Reading legal descriptions: lot and block vs. metes and bounds

Legal descriptions typically fall into two main types. Lot and block descriptions are common in urban and suburban areas and refer to a specific lot number within a block, which is part of a larger, recorded subdivision plat. For example, 'Lot 10, Block 3, Happy Valley Subdivision, as recorded in Plat Book 5, Page 22, of County Records.' These are usually straightforward to match to a plat map.

Metes and bounds descriptions are often found in rural areas or for irregularly shaped parcels. They use monuments, angles, and distances to describe the boundaries, starting from a known point of beginning and traversing around the property until returning to the start. An example might read, 'Beginning at the oak tree, thence North 45 degrees East 100 feet to a stone wall...' These require more careful comparison to a plat map, often needing a ruler and protractor to truly verify. You must understand the direction and distance for each 'call' in the description.

Comparing the legal description to the plat map

Once you have both the legal description and the corresponding plat map, your job is to compare them line by line. For lot and block descriptions, confirm the subdivision name, block number, and lot number precisely. Check the recorded plat book and page numbers to ensure you are looking at the correct map.

For metes and bounds, trace each call (distance and direction) on the plat map using the description as your guide. Ensure the starting point matches, and that each subsequent segment's bearing and distance align with the map. Pay close attention to any curves or unique boundary features. This is where you confirm that the written description accurately depicts the physical boundaries on the ground, as represented by the plat.

What to do if you find discrepancies

If the legal description does not precisely match the plat map, do not ignore it. This is a red flag that could lead to significant title issues. The discrepancy could be a simple typographical error in a deed, or it could indicate a more serious problem like a boundary dispute, a prior unrecorded transfer, or an incorrect survey.

Your next step is to consult with a title company and possibly a real estate attorney or surveyor. They can help investigate the source of the discrepancy and advise on how to resolve it. Moving forward with a deal that has an unverified or incorrect legal description is taking on unnecessary risk. It is better to address these issues upfront than to inherit a problem that costs more to fix later. Sometimes, it means walking away from the deal if the problem is too complex or costly to resolve.

Questions people ask

Why isn't a street address enough for a property's legal identity?

A street address is for mail and navigation, but it is not a legal definition of property boundaries. Legal descriptions define the exact parcel of land, including its precise dimensions and any easements, which a street address cannot convey.

Can I always find plat maps online?

Many counties have digitized their records, so you can often find plat maps online through the county's assessor or recorder's website. However, for older or less common properties, you might need to visit the county office in person to access physical records.

What if the plat map seems to show a different property than what I see on the ground?

If there is a significant visual difference between the plat map and what you observe, it could indicate an encroachment, an unrecorded addition, or even an incorrect survey. This warrants further investigation by a professional surveyor and a title company to reconcile the discrepancies.