Shared fence with a neighbour who won't talk in Vanier?

When a neighbour won't engage, Ontario's Line Fences Act gives you a formal path forward, and it does not require the other person's cooperation to start.

The Act lets you notify the municipal clerk to have fence-viewers appointed. Three fence-viewers visit the site, examine the boundary, and issue a written award. The award sets out where the fence goes, what it looks like, and how the cost is split. The default is that each owner builds a designated half, or one owner builds the whole fence and the other pays half the costs, unless the fence-viewers decide that would be unjust. An owner who disagrees with the award has 15 days after receiving it to appeal to the referee, whose decision is final. If the neighbour's share goes unpaid, it can be added to their property tax roll.

A few things to know before you start that process. The City of Ottawa's Delegation of Authority By-law (2025-69, section 45) allows staff to appoint fence-viewers to carry out the Act, but we could not confirm which parts of Ottawa the process covers, any seasonal restrictions, or the current fee. Ask the City whether the process applies to your property in Vanier and what it costs. The municipal guide to the Act also notes that arbitration does not apply where one owner has already built or rebuilt a fence on their own initiative and then wants to make the neighbour pay after the fact, so the order matters. The fence-viewers' award sets the location of the fence but does not affect title to the land, and the City cannot decide where the property boundary actually sits; that is a civil matter between the owners.

Before any of this, confirm where the property line is. geoOttawa shows approximate lines, but only an Ontario Land Surveyor, under the Surveyors Act, can certify the boundary. A fence contractor cannot do that. Check your deed or title documents for easements and do not block them; if anything is unclear, a lawyer can help.

The fence itself must meet the City of Ottawa Fence By-law, as published on ottawa.ca. In a front yard it is 1 m. Any award the fence-viewers issue must conform to the by-law. The finished side of the fence must face the street and the neighbouring property.

Before using the Act, try a short letter to the neighbour; the Act is there if that does not work.

Keep a dated copy of anything you send your neighbour and anything you get back; if you do go to the City, that record shows what you tried first.