16.1 Legal Description Components and Types

Domain V of the January 2025 Board for Professional Engineers, Land Surveyors, and Geologists (BPELSG) California-specific Professional Land Surveyor test plan weights Mapping and Document Preparation at 16%. Activity 1 in that domain is to prepare legal descriptions for easements, lot line adjustments, and other interests in real property. Knowledge items for this chapter are strip descriptions, metes-and-bounds descriptions, aliquot-part descriptions, portions-and-parts descriptions, and the preamble and body. Independent OpenExamPrep teaching here is original instruction for that activity. It is not a substitute for a copyrighted drafting manual. BPELSG’s Professional Land Surveyor Examination Reference List, updated February 2026, lists Writing Legal Descriptions by Wattles as suggested material only (item 12). Use that book if you own it; do not treat quoted pages as exam items, and do not copy its examples into practice.

A legal description is the locative text a deed, easement grant, lot-line-adjustment deed, or similar instrument uses to identify an interest in land. Business and Professions Code (BPC) section 8726(a)(12) states that a person practices land surveying who determines the information shown or to be shown within the description of any deed, trust deed, or other title document prepared for the purpose of describing the limit of real property in connection with the surveying functions in paragraphs (1) through (6) of that section. BPC 8761 then says a licensed land surveyor, or a civil engineer authorized to practice land surveying, may prepare descriptions in connection with that practice. Documents must be prepared by or under that person’s responsible charge and must include the licensee’s name and license number. Final descriptions issued by the licensee must bear signature, seal or stamp, and date. Determining the calls is not clerical typing. A title company may format a deed; the locative content that locates a new limit is surveying work.

Preamble and body

A complete description has two working parts plus optional qualifying clauses.

The preamble (often called the caption) names the senior title and the situs. Typical contents include the city or unincorporated area, county, and state; the parent lot, parcel, aliquot, or government lot; the recorded map, patent, or prior deed from which the parent is taken; and sometimes the assessor’s parcel number as a convenience only. The preamble answers “of what land, and where, is this a part?” It does not, by itself, cut a new line across that parent.

The body contains the operative calls: the point of beginning, courses, distances, monument references, adjoiners, centerline and width language, or aliquot tokens that actually locate the interest. If the body is a closed metes-and-bounds figure, the last course should return to the point of beginning. If the body is a strip, it should describe the path and the width and say how the sides meet the ends.

Qualifying clauses follow or wrap the body: “together with” appurtenant rights, “subject to” existing encumbrances, “excepting” land or interests withheld, “reserving” newly created rights. Those clauses are taught in section 16.2. Do not hide an exception inside a caption and hope a reader will notice.

When caption and body fight, California construction law (taught with Code of Civil Procedure section 2077 in section 16.2) looks for the particulars the parties actually used. As a writer, do not create that fight. Make the caption name the true parent, and make the body locatable on that parent.

Description types the test plan names

Lot-and-block of an entire recorded lot is strong when the map is recorded and the conveyance is the whole lot. This chapter does not teach map-sheet contents; those belong with later Domain V mapping activities.

Worked metes-and-bounds call sequence

The following is an original teaching example, not a recorded instrument.

Preamble. Being a portion of Lot 12 of Tract No. 9001, in the City of Hemet, County of Riverside, State of California, as per map recorded in Book 210, Pages 12 through 14 of Maps, in the Office of the County Recorder of said County, more particularly described as follows:

Body. BEGINNING at the northwest corner of said Lot 12, being a 2-inch iron pipe tagged LS 12345 as shown on said map; thence along the northerly line of said Lot 12, North 89°54'12" East 120.00 feet to a point; thence leaving said northerly line, South 00°05'48" East 80.00 feet; thence South 89°54'12" West 120.00 feet to a point on the westerly line of said Lot 12; thence along said westerly line, North 00°05'48" West 80.00 feet to the POINT OF BEGINNING.

The figure is a 120-foot by 80-foot rectangle (9,600 square feet). Teaching points:

1. The preamble names the senior lot and the recorded map. The body never pretends Lot 12 is unplatted acreage.
2. The point of beginning is a monument of record on the parent, not an arbitrary coordinate with no pedigree.
3. Two courses run along record lines; two courses leave those lines. Those verbs tell a retracing surveyor which calls are senior-line calls.
4. The last course closes to the point of beginning. Recite “to the POINT OF BEGINNING” rather than stopping at a calculated corner and hoping the reader will close it.
5. Bearings in this example are rectangular for teaching. On a real job they must match the basis of bearings of the source survey you actually used. Do not mix a map bearing with an assumed north without saying so.
6. Area is optional supporting data. Do not let “9,600 square feet, more or less” become the locating call.

Worked strip description (centerline and width)

Preamble. An easement for public utilities over a portion of Lot 4 of Tract No. 4120, in the County of San Bernardino, State of California, as per map recorded in Book 88, Pages 7 and 8 of Maps, in the Office of the County Recorder of said County, being a strip of land 20.00 feet in width, lying 10.00 feet on each side of the following described centerline:

Body. BEGINNING at a point on the easterly line of said Lot 4, distant thereon South 00°10'00" East 55.00 feet from the northeast corner of said Lot 4; thence North 12°30'00" West 350.00 feet; thence North 45°00'00" West 200.00 feet to the POINT OF TERMINUS.

The sidelines of said strip shall be lengthened or shortened so as to terminate on the easterly line of said Lot 4 and on a line drawn at right angles to said centerline at the POINT OF TERMINUS.

Teaching points:

• Recite interest (“easement for public utilities”), width, and centerline. Width without a path is not a strip.
• “10.00 feet on each side” is clearer than “a 20-foot strip” alone when the path is not on a boundary.
• Sideline termination language is not decoration. Without it, the strip’s ends are geometrically undefined where the centerline meets a boundary at a skew.
• On a curve, state whether sidelines are concentric and how they meet radial lines. This straight example stops at a right-angle cut.
• The beginning is tied to a record corner of the parent lot, not to a station equation from an unrecorded design file.

Aliquot parts versus government lots

An aliquot part is an exact regular fraction of a PLSS section: half, quarter, quarter-quarter, and so on. A regular section is treated as 640 acres for this arithmetic. A quarter is 160 acres; a half of a quarter is 80; a quarter-quarter is 40; a quarter of a quarter-quarter is 10. California public-land descriptions must also name the township, range, and meridian (Mount Diablo, San Bernardino, or Humboldt).

Write nested aliquot tokens without a comma when you mean “of the.” SW1/4NE1/4 of Section 10 is the southwest quarter of the northeast quarter: 40 acres. A comma is read as “and the.” NE1/4, SW1/4 of the same section is two quarters totaling 320 acres. NE1/4SW1/4SE1/4 without commas is 10 acres; inserting commas can jump the area into hundreds of acres. Bureau of Land Management instruction materials teach that comma rule as a writing and reading rule. It is a high-value exam trap.

A government lot is different. It is a numbered remainder on the official plat, used when a regular aliquot would not fit: convergence along the north and west of a township, a meandered water boundary, a mineral exclusion, or another irregularity. Acreage is whatever the plat shows, often not 40.00 acres. Describe it as Lot 3 of Section 6, Township 2 South, Range 3 East, San Bernardino Meridian, not as “the NW1/4NW1/4” of that fractional section if the plat lots that corner. Do not aliquot a government lot as if it were a regular quarter-quarter. Do not invent a lot number that the plat does not carry. BLM cadastral practice also treats a former aliquot that has been converted to a lot as remaining a lot; do not quietly restore aliquot notation.

Portions and parts

Portions and parts cut a parent without a full metes circuit: “the northerly 25.00 feet of Lot 18”; “the west half of Parcel 2 of Parcel Map No. 14012”; “that portion of Lot 5 lying southerly of the centerline of Oak Creek as it existed on [date].” These save words when the cut is simple and the parent is regular. They fail when the parent is a trapezoid and “northerly 25 feet” does not say whether the 25 feet is measured along the side lines, perpendicular to the north line, or as a strip of uniform width. If the cut is not obvious, write metes and bounds.

Drafting checklist

• Name the parent and the recording reference in the preamble.
• Use one point of beginning with a monument or a measurable tie.
• Prefer record lines and adjoiners over coordinates-only calls.
• Close the figure or terminate the strip on purpose.
• Keep aliquot punctuation honest.
• Do not use a government-lot corner as if it were a regular aliquot.
• State the interest (fee, easement, remainder) in words that match the client’s conveyance.