13.3 Parol Evidence and Relevant Case Law

The January 2025 test plan names parol evidence as Domain IV knowledge CC and again in Domain V as documentation of parol (use, methods to document, and effects). Knowledge AA is applications of relevant case law. Knowledge Q is controlling elements of legal descriptions, and knowledge E points to the hierarchy of evidence (e.g., Code of Civil Procedure 2077). Knowledge EE points to survey-relevant sections of state laws, including the Evidence Code. Independent OpenExamPrep teaching in this section keeps those sources distinct. Candidates lose items by treating 'parol' as a blank check to rewrite a deed, or by citing the Evidence Code for a rule that actually sits in the Code of Civil Procedure.

Parol evidence, in the boundary setting, is oral or other extrinsic evidence about intent, circumstances, or meaning that is not found in the four corners of the deed, will, or contract. Domain IV activity 1 even lists oaths/parol evidence among the materials you analyze with monuments and occupation. Your job is to collect and record that evidence: who spoke, when, what they claimed, and how the statement relates to a fence, hedge, ditch, or monument. Admissibility and the legal effect of the statement are court questions.

Code of Civil Procedure 1856: the parol evidence rule, including deeds

Open the statute, not a slogan. CCP 1856(a) says terms set forth in a writing intended by the parties as a final expression of their agreement with respect to the terms included therein may not be contradicted by evidence of a prior agreement or of a contemporaneous oral agreement. That is the core bar. A neighbor cannot, years later, testify that the parties 'really meant' a different course if that testimony contradicts a term the writing was meant to state finally.

The rest of 1856 is the set of doors the exam will test:

• (b) Terms may be explained or supplemented by consistent additional terms unless the writing is also intended as a complete and exclusive statement.
• (c) Terms may be explained or supplemented by course of dealing, usage of trade, or course of performance.
• (d) The court determines whether the writing is a final expression and whether it is complete and exclusive. That is not a PLS determination.
• (e) If mistake or imperfection of the writing is put in issue by the pleadings, 1856 does not exclude relevant evidence.
• (f) If validity of the agreement is in dispute, 1856 does not exclude relevant evidence.
• (g) The section does not exclude evidence of the circumstances under which the agreement was made or to which it relates, as defined in section 1860, or evidence to explain an extrinsic ambiguity, otherwise interpret the terms, or establish illegality or fraud.
• (h) Agreement includes trust instruments, deeds, wills, and contracts. Boundary students who think 1856 is 'only for commercial contracts' miss (h).

CCP 1860 is short and operational: for proper construction of an instrument, the circumstances under which it was made, including the situation of the subject of the instrument and of the parties, may be shown so the judge is placed in the position of those whose language the judge is to interpret. Standing at the oak, the ditch, and the old road the parties could see is 1860 work. Measuring those objects is surveying. Deciding that 1860 opens the door is judging.

Evidence Code 622 is not the parol rule

Evidence Code section 622 sits in the conclusive-presumptions article: the facts recited in a written instrument are conclusively presumed to be true as between the parties or their successors in interest, but this rule does not apply to the recital of a consideration. The test plan's reference to the Evidence Code is real. The trap is to use 622 as if it were 1856, or to use 622 to drag a 'containing 10 acres more or less' clause across a monumented line. 622 is a presumption about recited facts between parties. Consideration recitals are expressly out. Controlling elements of a description, when construction is doubtful, are in CCP 2077, not in 622. Between the original parties, a false recital of a fact in the deed may be hard to deny; that still does not make the surveyor a trial court, and it does not make quantity a substitute for an identified monument.

PG&E v. Thomas Drayage: the reasonably-susceptible test

Pacific Gas & Electric Co. v. G.W. Thomas Drayage & Rigging Co. (1968) 69 Cal.2d 33 is the California Supreme Court case on extrinsic evidence to interpret a writing. The holding to remember is the Court's own test: the test of admissibility of extrinsic evidence to explain the meaning of a written instrument is not whether it appears to the court to be plain and unambiguous on its face, but whether the offered evidence is relevant to prove a meaning to which the language of the instrument is reasonably susceptible. The Court also treated Civil Code 1647 and CCP 1860 as authorizing surrounding-circumstances evidence so the court can sit where the parties sat. Extrinsic evidence may not add to, detract from, or vary the terms, but it may interpret terms that will bear the offered meaning.

Apply that holding like a surveyor, not like a novelist. If a deed calls 'to the stone monument at the northwest corner of the barn,' testimony that the parties pointed at a particular stone is interpretation of language reasonably susceptible of that meaning. Testimony that they 'meant to convey an extra 40 feet we forgot to write' is an attempt to contradict the writing under 1856(a). City of Manhattan Beach v. Superior Court (1996) 13 Cal.4th 232, discussed in section 13.2, is the same method used on a railroad deed: facial conflict between quitclaim-of-land words and 'right of way' words opened the door to extrinsic evidence of intent.

Continental Baking Co. v. Katz (1968) 68 Cal.2d 512 applies the same interpretive approach to easements: grants are interpreted in like manner with contracts (Civil Code 1066), and the extent of the servitude follows Civil Code 806. When it is unclear whether a way is in gross or appurtenant, California prefers a reading that is appurtenant when that reading is fair, and surrounding circumstances may be shown.

CCP 2077: controlling elements when construction is still doubtful

CCP 2077 applies when the construction is doubtful and there are no other sufficient circumstances to determine it. That preface matters. Circumstances under 1860, and a meaning the language will bear under PG&E, come before a mechanical march through 2077. When 2077 does apply, its six rules are the California statutory controlling elements for the descriptive part of a conveyance:

1. Definite and ascertained particulars control. Adding indefinite, unknown, or false particulars does not frustrate the conveyance.
2. Permanent and visible or ascertained boundaries or monuments are paramount to inconsistent measurements of lines, angles, or surfaces.
3. Among inconsistent measurements, angles are paramount to surfaces, and lines are paramount to both. This is not the slogan 'distances always win.' Distances are measurements; monuments beat measurements under rule two.
4. A road or non-navigable stream as a boundary includes the grantor's rights to the middle of the road or the thread of the stream, except where that road or thread is held under another title.
5. Tide water as a boundary includes rights to ordinary high-water mark. A navigable lake with no tide includes rights to low-water mark.
6. A map reference that is inconsistent with other particulars controls if it appears the parties acted with reference to the map; otherwise the map is subordinate to other definite and ascertained particulars.

Worked example: the oak and the false 200 feet

A 1924 deed runs 'thence north 15 degrees east 200 feet to a 30-inch oak.' You recover a 40-inch oak in the fence line, with an old blaze, 215.2 feet along that bearing from the prior corner. A neighbor offers to testify that 'everyone always measured 200 feet and ignored the tree.' Under 2077 rule one, a definite monumented particular is not frustrated by an additional false distance. Under rule two, the oak, if proved to be the called monument, is paramount to the 200-foot measurement. Under 1856(a), the neighbor's oral contradiction of a term intended as a final call does not rewrite the deed. You still document the oath, the blaze, the bearing-distance, and the occupation. You set or hold the corner at the oak if the evidence identifies it as the called tree. You do not average 200 and 215 to be 'fair.'

Documenting parol without trying the case

Domain V knowledge O on the test plan is parol evidence as used, documented, and given effect in mapping. Practical documentation:

• Identify the speaker (name, relation to the land, age of knowledge).
• Date and place of the statement, and whether it was under oath.
• The exact words as nearly as you can record them.
• The physical object the speaker pointed to, with a measurement to your traverse.
• Whether the statement explains a call the language will bear, or contradicts a call the writing already made.

Put both the record line and the occupation line on the map when they differ. State that parol was considered. Do not state that parol 'controls' unless a court has so held. Expert testimony (Domain VI activity 2) is how that record later reaches a trier of fact. Quiet title remains counsel's filing.

Exam traps

The cheap wrong answers are: oral testimony always wins; 2077 applies even when circumstances already decide the call; distances beat identified monuments; Evidence Code 622 is the parol evidence rule; PG&E allows adding terms the writing never used. The disciplined answer is: record the oath, measure the object, apply 1856's contradiction bar, apply PG&E only to a meaning the words will bear, and reach 2077 only when construction is still doubtful.