Legal Description of Property: Metes and Bounds, Plat, and Rectangular Survey

A legal description of property is the standardized, legally operative text that identifies a parcel of real estate with sufficient precision to distinguish it from every other parcel. Three primary systems govern how that precision is achieved in the United States: metes and bounds, plat (lot and block), and the Public Land Survey System (PLSS) rectangular survey method. Each system carries distinct geographic applicability, professional requirements, and evidentiary weight in title transactions, boundary disputes, and government recordkeeping.

Definition and scope

A legal description is not a street address or a tax parcel number — it is a formal boundary delineation recognized by courts, title insurers, and recording offices as the authoritative spatial definition of a property interest. The Uniform Law Commission and state-level recording statutes consistently require that deeds, mortgages, and other conveyance instruments include a legal description sufficient to locate the property without reference to extrinsic materials.

Three classification systems encompass virtually all legal descriptions used in U.S. real property transactions:

1. Metes and Bounds — Sequential boundary calls defined by directions (bearings), distances, and monuments. Predominant in the 13 original colonies, Texas, Hawaii, and Kentucky.
2. Plat (Lot and Block) — References a recorded subdivision map filed with the county recorder. Dominant in subdivided urban and suburban land nationwide.
3. Rectangular Survey (PLSS) — A grid-based system using principal meridians, base lines, townships, and sections. Covers 30 states, primarily those surveyed after the Land Ordinance of 1785 (Bureau of Land Management, PLSS Overview).

Each system is regulated at the state level through licensed land surveyor statutes, but the PLSS originates from federal authority administered by the Bureau of Land Management (BLM).

How it works

Metes and Bounds

A metes and bounds description begins at a defined starting point called the Point of Beginning (POB) and traces the perimeter of the parcel through a series of courses. Each course states a bearing (e.g., N 45° 30' E) and a distance (e.g., 210.5 feet), terminating at a monument — a physical marker such as an iron pin, stone, or natural feature. The description closes when the final course returns to the POB. State licensing boards require that boundary surveys for legal descriptions be performed by a licensed Professional Land Surveyor (PLS); 49 states and the District of Columbia license surveyors through boards affiliated with the National Council of Examiners for Engineering and Surveying (NCEES).

Plat System

In a platted subdivision, the developer's surveyor prepares a subdivision plat map that divides a tract into numbered lots within named or numbered blocks. Once the plat is reviewed and recorded with the county recorder or register of deeds, each parcel can be described by reference: "Lot 14, Block 7, Riverside Heights Subdivision, as recorded in Plat Book 22, Page 18, [County] Records." The legal description incorporates the recorded document by reference, making the plat map itself a controlling legal instrument under most state recording acts.

Rectangular Survey (PLSS)

The PLSS establishes a coordinate grid anchored to 37 principal meridians and their corresponding base lines across the 30 PLSS states (BLM, Principal Meridians and Base Lines). Land is divided into 6-mile-square townships, each subdivided into 36 one-mile-square sections of 640 acres. Sections are further divided into quarter sections (160 acres), quarter-quarter sections (40 acres), and smaller aliquot parts. A complete PLSS description identifies the aliquot part, section number, township number and direction from the base line, range number and direction from the principal meridian, and the governing principal meridian — for example: "NW¼ of SE¼, Section 12, T2N, R4E, Willamette Meridian."

Common scenarios

The practical application of each system depends on the parcel's history, location, and intended transaction type. The property providers in this network reflect parcels governed by all three systems depending on state and county of record.

Scenario 1 — Rural land conveyance in an original colony state: A 47-acre woodland parcel in Virginia is conveyed by metes and bounds. The grantor's attorney orders a boundary survey from a licensed PLS, who prepares a plat of survey and a written description for insertion into the deed. The description references iron pins set at each corner and a creek as a natural monument.

Scenario 2 — Residential subdivision lot sale: A homebuilder conveys Lot 22 in a newly recorded subdivision. The lot and block description references the county-recorded plat, eliminating the need to recite individual bearings and distances in the deed. Title companies accept this format because the underlying plat is a public record subject to direct inspection.

Scenario 3 — Agricultural land transfer in a PLSS state: A 320-acre farm in Iowa is described as the "E½ of Section 6, T84N, R12W, Fifth Principal Meridian, Johnson County, Iowa." The PLSS description is verified against BLM General Land Office (GLO) survey records, which are publicly accessible through the BLM GLO Records portal.

Scenario 4 — Boundary dispute requiring resurvey: An overlap is discovered between two adjacent metes and bounds descriptions in a county where monuments have been disturbed. A licensed surveyor is retained to perform a retracement survey under the state's survey practice act. Courts in most states apply the American Land Title Association (ALTA) survey standards when ALTA/NSPS surveys are used for title insurance.

Decision boundaries

Selecting the appropriate description system is not discretionary in most circumstances — geography and recorded history control the applicable method. The property provider network purpose and scope page provides additional context on how parcel records are structured across jurisdictions.

PLSS vs. Metes and Bounds — Controlling criterion: A parcel lying within a PLSS state uses PLSS aliquot parts as the primary structural framework; metes and bounds may supplement PLSS descriptions for irregular tracts that do not conform to aliquot divisions but cannot replace PLSS references for federal patents issued under the Land Ordinance of 1785.

Plat vs. Metes and Bounds — Controlling criterion: Once a subdivision plat is recorded, lot and block descriptions supersede metes and bounds for individual lots within that subdivision. Metes and bounds remain operative for parent tracts, remainder parcels, and unplatted rural land.

Key decision factors in legal description selection:

1. State location — PLSS applies in 30 states; metes and bounds govern the 13 original colonies plus Texas, Hawaii, and Kentucky as primary systems.
2. Whether a subdivision plat is recorded — A recorded plat controls description for platted lots regardless of state system.
3. Parcel shape conformity — Irregular parcels in PLSS states require metes and bounds calls to close boundaries that do not follow aliquot lines.
4. Transaction type — ALTA/NSPS Land Title Surveys (governed by standards jointly published by ALTA and the National Society of Professional Surveyors, NSPS) require field boundary verification regardless of the underlying description system.
5. Acreage threshold — Aliquot descriptions are accepted for PLSS tracts of 40 acres or larger; smaller irregular remainders require metes and bounds closure.
6. Monument reliability — When original monuments are lost or disturbed, a licensed PLS retracement survey is required before a new legal description can be prepared and recorded.

Errors in legal descriptions — including ambiguous monument calls, failure to close a metes and bounds traverse, or reference to an unrecorded plat — constitute a title defect under most state recording statutes and can render a conveyance instrument legally insufficient. Title examiners applying ALTA standards flag description defects as Schedule B exceptions requiring resolution before insured closing. Additional parcel-level reference information is available through the how to use this property resource page.