Privacy fence along a property boundary

Fencing Guide - London, Ontario

Understanding Fencing Boundaries in London, Ontario

Everything London homeowners need to know about property lines, setback rules, neighbour agreements, and City of London fence bylaws before installing a fence.

London, OntarioUpdated January 20237 min read

01 - The Basics

What Are Property Line Fences?

A property line fence is a fence built at or near the legal boundary that separates two parcels of land. Going right alongside security, a fence is likewise an extraordinary method to set up fencing boundaries and property lines between neighbours.

Sometimes individuals trespass inadvertently, not realizing they are upsetting the property owner. Other homeowners may be frustrated that their neighbours are not respecting the line that separates their properties. In circumstances like this, a fence creates a clear, hard-and-fast boundary.

Before any fence goes in the ground, however, you need to understand exactly where your property ends and your neighbour's begins. Getting this wrong can lead to costly disputes, forced removals, and damaged relationships.

Wooden fence installed along a residential property boundary in London Ontario
Newly installed fence along a residential lot in London Ontario

02 - Local Rules

Fence Setback Requirements in London, Ontario

The City of London regulates how close a fence can be built to the property line. These setback rules vary by yard location and zoning designation.

  • Front Yard: Fences in the front yard are generally limited to 1 metre (3.3 feet) in height and must respect the sight-triangle setback near driveways.
  • Side and Rear Yards: Fences up to 2 metres (6.5 feet) are typically permitted at or near the side and rear property lines in residential zones.
  • Corner Lots: Corner lots have stricter rules to maintain sightlines for drivers. Always check the specific bylaw for your lot configuration.
  • Permit Requirements: Most residential fences do not require a permit, but fences over 2 metres or in special zones may need City of London approval.

Pro tip: Always verify the current bylaw with the City of London before starting your project. Bylaws can change, and your specific zoning may have additional requirements.

03 - Neighbour Relations

Shared Fence Agreements Between Neighbours

Ontario's Line Fences Act governs shared boundary fences. Knowing your rights and obligations helps avoid costly disputes before they start.

01

Talk First

Before any work begins, discuss the project with your neighbour. Agree on the fence style, height, materials, and exact location. Put the agreement in writing.

02

Cost Sharing

Under the Line Fences Act, both property owners share the cost of a fence on the property line equally, unless they agree otherwise or one party demands an upgrade.

03

Dispute Process

If neighbours cannot agree, either party can apply to the municipality for a Line Fence Viewers arbitration. This formal process determines cost sharing and fence specifications.

04 - City of London

City of London Fence Bylaws Overview

The City of London regulates fences through its Zoning Bylaw Z.-1 and the Property Standards Bylaw. Here are the key rules every homeowner should know.

Maximum Height - Front Yard

Applies to fences in the required front yard setback area.

1.0 m (3.3 ft)

Maximum Height - Side/Rear Yard

Standard residential zones. Some zones may differ.

2.0 m (6.5 ft)

Sight Triangle

Clear zone required at driveways and intersections for safety.

3.0 m x 6.0 m

Prohibited Materials

Not permitted in residential zones.

Barbed Wire, Electric

Maintenance

Fences must be kept in good repair. Leaning or deteriorating fences can result in a bylaw notice.

Mandatory

These figures are for reference only. Always confirm current requirements with the City of London before installation. Bylaws are subject to change.

Professionally installed wood fence in a London Ontario residential neighbourhood

05 - Before You Build

How to Determine Your Property Boundaries

Never assume where your property ends. Incorrect placement can force you to remove and rebuild a fence at your own expense.

  • 01

    Review your property survey

    Your original survey document (received at closing) shows exact dimensions and boundary locations.

  • 02

    Locate survey pins

    Iron bars or pins are typically driven into the ground at lot corners. Use a metal detector if needed.

  • 03

    Check GIS mapping tools

    The City of London offers online mapping that can help you approximate lot lines, though it is not legally binding.

  • 04

    Hire a land surveyor

    For certainty, commission a registered Ontario land surveyor. This is the only legally definitive method.

06 - Land Surveys

When Do You Need a Survey?

A professional land survey is not always required, but there are situations where it is strongly recommended or legally necessary.

You cannot locate existing survey pins on your property
There is a disagreement with a neighbour about the boundary location
Your lot has an irregular or unusual shape
You are building a fence very close to the assumed property line
Your property has not been surveyed in over 20 years
You are purchasing a property and want to confirm boundaries
A neighbour has recently built a structure near the boundary

Cost note: A residential boundary survey in Ontario typically costs between $800 and $2,500 depending on lot complexity. It is a worthwhile investment compared to the cost of relocating a fence.

07 - Avoiding Problems

Common Fencing Boundary Disputes and How to Avoid Them

Most boundary disputes are preventable with proper preparation and communication. Here are the most common issues London homeowners face and how to sidestep them entirely.

Fence built on neighbour's land

Always confirm boundaries with survey pins or a land surveyor before digging post holes. Even being a few centimetres over the line can require full removal.

Disagreement over fence style or cost

Get written agreement from your neighbour before any work begins. Specify materials, height, finish side, and cost split in a simple signed document.

Fence blocking natural drainage

Ensure your fence design accounts for water flow. A fence that redirects water onto a neighbour's property can create legal liability.

Violating bylaw height or setback limits

Review the City of London zoning bylaw for your specific zone before installation. A fence that violates the bylaw may need to be removed at your expense.

Encroachment on utility easements

Call Ontario One Call (1-800-400-2255) before digging. Utility easements may restrict where posts can be placed, and digging without notification is illegal.

Fence installation project by Forrest City Fencing Ltd in London Ontario

Pre-Install Checklist

  • Confirm property boundaries with survey pins
  • Check City of London zoning bylaw
  • Discuss plans with your neighbour
  • Call Ontario One Call before digging
  • Obtain written neighbour agreement
  • Verify no permit is required

London, Ontario - Since 2012

Get Expert Fencing Advice

Not sure where your property line is or which fence style meets London bylaws? Our team has been installing fences in London, Ontario since 2012. We handle the details so you don't have to.

What We Handle For You

  • Property line verification and bylaw review
  • Neighbour consultation and agreement support
  • Permit identification and application guidance
  • Ontario One Call coordination before digging
  • Full fence installation by certified professionals
  • Post-install cleanup and site inspection
Serving London, Ontario and surrounding area