New Fence Passes Inspection but Neighbor Disputes the Property Line
Why this matters
A fence that clears the municipal building inspection and then draws a formal encroachment claim from the neighbor is one of the highest-liability scenarios in residential fence contracting. The inspection and the property boundary are entirely separate legal systems, and a passing inspection provides no defense against an encroachment claim. Understanding the distinction, documenting correctly before and after every install, and responding to a dispute with a clear protocol protects the contractor, the customer, and the working relationship with the neighbor who will still be next door long after the job is closed.
What a building permit inspection does and does not certify
A municipal building inspection for a fence typically verifies:
- That the fence height and materials comply with local zoning ordinance.
- That the fence meets the required setback from the public right-of-way (the street, sidewalk, or easement).
- That the structural installation meets code (post depth, concrete, footing size for the fence class).
A building inspection does not verify:
- Where the private property boundary between two adjacent parcels falls.
- Whether the fence is on, inside, or outside that private boundary.
- Any encroachment onto the neighbor's parcel.
The inspector looks outward from the parcel (setback from the public ROW) not inward at the shared boundary line. Two fences could each pass inspection while one encroaches on the other owner's parcel by several feet, because both are setback-compliant from the street. Passing inspection is not evidence of correct property line placement.
Types of surveys and what they cover
Improvement Location Certificate (ILC) / As-built survey: Documents the location of existing improvements (structures, driveways, existing fences) on a parcel relative to the lot lines as previously established. An ILC is not a boundary survey; it relies on previously placed monuments and does not re-establish the boundary. It is typically required for real estate closings to satisfy the lender, not to adjudicate a disputed line.
Boundary survey: A licensed surveyor physically locates and restores the corner monuments, measures and verifies the parcel's described dimensions against the legal description, and places new monuments or confirms existing ones at each corner. A boundary survey is the only instrument that can settle a disputed property line. Its result can be recorded and used as evidence in a legal proceeding.
Most customers show the contractor a site plan, plat map, or old survey drawing and assume it establishes the line precisely enough to build from. Those documents are starting points, not on-the-ground guarantees, especially where corner monuments have been disturbed or the original survey was imprecise.
Contractor liability exposure
The contractor's exposure depends on the instructions provided at the start of the job:
Customer provided a plot plan or pointed to stakes: The contractor built to the customer's direction. Document that direction in writing before starting, and confirm the customer accepted responsibility for boundary accuracy in the contract. A written acknowledgment - "Customer has identified the property line and confirms the fence shall be installed at the described location; contractor is not responsible for survey accuracy" - places the boundary-confirmation obligation where it belongs.
Contractor relied on stakes without confirming who set them: This is the highest-exposure position. Survey stakes, landscaping stakes, and utility-locate flags use similar colors. If a contractor acts on stakes without confirming they are licensed-surveyor boundary markers, the contractor may have no defense against an encroachment claim and may bear some responsibility for the cost of relocation.
Contractor recommended building on the line: If the contractor advised the customer to build on the shared boundary line rather than a few inches inside it, the contractor's advice is now part of the dispute record.
The practical risk-mitigation standard is to install the fence a few inches inside the property line as shown by the customer's reference materials, not on the line, and document that placement in the work order.
Documentation steps before and after every install
Before starting: Photograph every visible corner monument near the fence line. If no monuments are visible, note it in the work order and ask the customer to confirm the line by their own reference. Get written sign-off on the proposed fence location specifying how the line was identified. Install inside the customer's line, not on it.
After completing: Photograph the finished fence relative to any visible monuments and note the approximate clearance. Keep all signed documents, photos, and communications indefinitely; property disputes can surface years after completion.
Recommended response posture when a dispute surfaces post-install
When a neighbor or the customer raises an encroachment claim after the fence is complete, the correct posture is to stop, document, and refer - not to remove, relocate, or make any admissions about where the line falls.
Do not remove or relocate the fence on request alone. Moving the fence in response to a verbal claim by the neighbor is not an act of good faith; it is a structural alteration of an improvement on your customer's property without your customer's instruction. The neighbor's claim may be incorrect. Only a boundary survey or a court order establishes where the line actually falls.
Do not agree that the fence is in the wrong place. You do not know whether the claim is accurate; informal agreement can be used against the contractor and customer later.
Document the claim. Note the date, claimant's name, and substance of the claim. File any written communication from the neighbor.
Refer to a licensed surveyor and, if serious, an attorney. A boundary survey settles where the line falls; an attorney advises on remedies if encroachment is confirmed. The correct statement to the customer: "The building inspection confirmed code compliance; a boundary survey is the next step for the property line question." Cooperate with the surveyor and provide all documentation of how the fence location was determined.
Do not remove, cut, or relocate a fence in response to a neighbor's request without a written instruction from your customer and, if the encroachment is legally confirmed, advice from an attorney on the correct relocation procedure. Removing an improvement from private property without the property owner's authorization creates its own legal exposure for the contractor.
References
- ALTA/NSPS Land Title Survey Standards (current edition) - defines what a boundary survey covers and what an ILC covers; useful background for explaining the difference to customers.
- American Congress on Surveying and Mapping (ACSM) - surveyor licensing and practice standards.
- Local municipal zoning ordinance (setback requirements, height limits, fence material standards - varies by jurisdiction; confirm before each permit application).
- General contractor risk management and contract documentation best practices (consult a construction attorney for jurisdiction-specific contract language).