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§ 2077.Real estate descriptions; rules for construing

Title 6. Of Evidence in Particular Cases, and Miscellaneous and General Provisions · Chapter 1. Evidence in Particular Cases · Last amended 1873 · Last verified July 29, 2026

In one sentenceSection 2077 supplies six default rules for construing an ambiguous description of real property in a conveyance when the parties’ intent is doubtful and no other evidence resolves it, covering conflicting particulars, monuments versus measurements, roads and streams as boundaries, tidewater and lake boundaries, and references to maps.

Full Text of § 2077

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The following are the rules for construing the descriptive part of a conveyance of real property, when the construction is doubtful and there are no other sufficient circumstances to determine it:
One--Where there are certain definite and ascertained particulars in the description, the addition of others which are indefinite, unknown, or false, does not frustrate the conveyance, but it is to be construed by the first mentioned particulars.
Two--When permanent and visible or ascertained boundaries or monuments are inconsistent with the measurement, either of lines, angles, or surfaces, the boundaries or monuments are paramount.
Three--Between different measurements which are inconsistent with each other, that of angles is paramount to that of surfaces, and that of lines paramount to both.
Four--When a road, or stream of water not navigable, is the boundary, the rights of the grantor to the middle of the road or the thread of the stream are included in the conveyance, except where the road or thread of the stream is held under another title.
Five--When tide water is the boundary, the rights of the grantor to ordinary high-water mark are included in the conveyance. When a navigable lake, where there is no tide, is the boundary, the rights of the grantor to low-water mark are included in the conveyance.
Six--When the description refers to a map, and that reference is inconsistent with other particulars, it controls them if it appear1 that the parties acted with reference to the map; otherwise the map is subordinate to other definite and ascertained particulars.

Plain-English Summary

This section only comes into play as a last resort. It applies when the words describing land in a deed are doubtful, and nothing else in the record, no other circumstance or piece of evidence, settles what the parties meant. It is not a rule that overrides clear language; it is a tie-breaker for the cases where the description itself leaves real uncertainty.

Three of the six rules work together to favor what can be fixed and verified over what was merely calculated. Where a description mixes definite, ascertained details with others that are vague, unknown, or wrong, the definite details control and the conveyance survives (rule one). Where a permanent, visible boundary or monument conflicts with a stated measurement, the monument wins (rule two). And among conflicting measurements, angles outrank surface or area figures, while lines outrank both (rule three), so what was staked and walked on the ground beats what was only computed on paper.

The remaining three rules handle specific boundary types. A non-navigable road or stream used as a boundary carries the grantor’s rights to the middle of the road or the center of the stream, unless someone else holds separate title to it (rule four). Tidewater as a boundary carries the grantor’s rights to the ordinary high-water mark, while a non-tidal navigable lake carries rights to the low-water mark (rule five). And a reference to a map controls over other inconsistent details only if the parties relied on that map in making the deal; otherwise, the map gives way to the other definite, ascertained particulars in the description (rule six).

Frequently Asked Questions

When do these construction rules apply to a property description?

Only when the description in a conveyance is doubtful and no other sufficient circumstances resolve what the parties intended; clear, unambiguous language is not reinterpreted under this section.

Which controls when a deed’s stated boundary conflicts with a monument on the ground?

The permanent, visible monument or boundary controls over an inconsistent measurement of lines, angles, or surfaces.

Who owns the middle of a road that serves as a property boundary?

The grantor’s rights to the middle of a non-navigable road, or the thread of a non-navigable stream, pass with the conveyance, unless the road or stream is held under a separate title.

Does a reference to a map in a deed always control the property description?

No. It controls an inconsistent particular only if it appears the parties acted with reference to that map; otherwise the map is treated as subordinate to the other definite, ascertained particulars.

What is the difference between how tidewater and lake boundaries are treated?

A tidewater boundary carries the grantor’s rights to the ordinary high-water mark, while a non-tidal navigable lake boundary carries rights only to the low-water mark.

Amendment History

(Enacted in 1872. Amended by Code Am.1873-74, c. 383, p. 390, § 244.)

Source & verification. Section text is reproduced verbatim from the West's Annotated California Codes / Thomson Reuters. Enacted by the California Legislature. Last verified July 29, 2026. · Official source
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