Know the Line Before You Build — The Property Survey Imperative
Claim: Building a fence without knowing the exact property line risks a court-ordered removal at your cost under BC Property Law Act s. 36 — even if the encroachment was accidental. A survey costs 800; a fence dispute can cost multiples of that in legal fees, demolition, and rebuild. Verify first.
Mechanism
Why the risk is asymmetric:
BC Property Law Act s. 36 allows either neighbour to apply to the BC Supreme Court when a fence encloses part of their property. The court has three remedies:
- Order removal and relocation of the fence (at the encroaching owner’s cost)
- Grant an easement with compensation to the affected neighbour
- Transfer title to the encroaching owner with compensation
Courts have ordered removal even when the encroachment was unintentional and occurred before the current owner purchased the property (Oyelese v. Sorensen, 2013 BCSC).1 The good-faith mistake does not prevent the removal order.
The survey gap problem:
Property corners are marked by iron pins (survey monuments) set by Registered BC Land Surveyors. These pins:
- May have been disturbed, removed, or buried during landscaping or construction
- Are not always obvious — they sit at grade and are easily missed
- Do not show up in Google Maps or municipal property viewer web tools with sufficient precision for physical construction decisions
Without a survey, a fence line is estimated by the owner, often from an assumed corner or an old wooden stake left by a previous survey. An error of as little as 10–20 cm over a typical residential fence run of 30 m can mean the fence encroaches 30+ cm at one end.
The neighbour-consent rule for line fences:
A fence owner may build on their own side of the property line without consent. To place a fence directly on the property line, both neighbours must agree. The practical implication: building on your own side (even 5 cm inward) avoids the legal exposure entirely, but does require knowing where the line is.23
The decision rule
| Situation | Action |
|---|---|
| Fence is clearly interior to your property by >30 cm on both ends, confirmed by visible survey pins | Survey optional — low encroachment risk |
| You can see iron survey pins and measure from them confidently | Confirm pins with a surveyor search at BC Land Title office; if pins match your understanding, proceed |
| You cannot find survey pins, or the line is near an existing structure | Hire a Registered BC Land Surveyor before digging. Cost: 800 for a residential boundary pin location |
| Neighbour is already questioning your fence location | Stop work and get a survey immediately — an amicable resolution is far cheaper than a court order |
| You want to build directly on the property line | Written agreement with neighbour required; consider a registered encroachment agreement for permanence |
Scope
This decision rule applies to:
- Any new fence installation near or on the property boundary
- Fence replacement along existing lines (the old fence may not have been correctly placed)
- Corner-lot situations where two property lines converge
This does NOT apply to:
- Interior fences entirely within your lot (pool enclosures, garden dividers)
- Strata common property (the strata corporation manages boundary fencing; individual owners do not build on lot lines)
Sources
Idea Compass
North: Where this comes from
- fence (Home Systems) — parent component note
- BC Property Law Act, s. 36 — the statute that governs encroaching fences
East: Tensions / failure
- The assumption that “I know roughly where my property line is” — the failure mode this rule exists to prevent
- Neighbour disputes that escalate to Small Claims Court or BC Supreme Court when survey evidence is missing
South: Where this leads
- vendor-roster (Home Systems) — the Registered BC Land Surveyor named-resource card
- Written fence agreement template — the output of a successful line-fence negotiation
West: What’s similar
- The Decision Lifecycle — this decision is reversible (survey before digging, not after) and low-cost (800); the full lifecycle is not needed, but the weigh step is: “what’s the cost of getting this wrong?” is the right question
Footnotes
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McLarty Wolf, BC law firm — BC Property Law Act s. 36 summary; court remedies for encroaching fences (removal, easement, title transfer); Oyelese v. Sorensen 2013 BCSC precedent — https://www.mclartywolf.com/section-36-british-columbias-property-law-act/ ↩
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People’s Law School BC — fences and neighbours; line fence consent requirement; survey monuments; BC Boundaries Act; dispute remedies — https://www.peopleslawschool.ca/fences-and-neighbours/ ↩
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Meridian Law Group, Vancouver law firm — fence disputes Vancouver; BC Land Title Act and Limitation Act; survey requirements; encroachment agreement mechanics — https://meridianlawgroup.ca/the-great-divide-fence-disputes-in-vancouver/ ↩