How High Can a Fence Between Neighbours Be?

When planning to put up a fence between neighbours, one question quickly comes to mind: how high can a fence between neighbours be? In Belgium, clear rules govern the maximum height of boundary enclosures, and these vary by region, garden zone (front garden versus back garden) and type of fence (open or closed). As a general rule, a fence between neighbours in the back garden may be up to 2 metres high without a permit, while that limit drops to 1 metre at the front. A conversation with your neighbours and a quick check with your local authority will help you avoid disputes and fines.

General rules by region

Height restrictions are fairly uniform across Belgium, but Flanders, Brussels and Wallonia can each have local nuances. The basic standards are:

• Back garden and side garden: maximum height of 2 metres for both open (wire mesh) and closed (wood, stone) fences.
• Front garden: maximum height of 1 metre for closed fences; open fences up to 2 metres are often permitted.
• On the boundary line: consultation with neighbours is always required; they must agree to the placement and height.

These limits apply to enclosures within 30 metres of the dwelling and erected without a permit. Taller fences require a planning permit from the local authority.

Open versus closed fences: what is the difference?

The rules depend on the type of fence:

• Open fence (wire mesh, railings): up to 2 metres anywhere (including the front garden).
• Closed fence (wood, plexiglass, stone): 1 metre in the front garden, 2 metres in the back and side garden.

For a fence between neighbours (usually on the boundary line), the strictest rule applies: a maximum of 2 metres, and only with mutual consent from both parties.

When do you need a permit?

You can erect a fence without a planning permit if:

• the height stays within the permitted limits (2 m at the back, 1 m at the front);
• it is situated entirely within 30 metres of your home;
• it is not on a protected site or listed building.

Exceptions:

• Higher than 2 metres: a permit is compulsory.
• Brick or stone wall: often subject to stricter rules (max. 0.5 m).​
• Local planning or police regulations: check with your local authority, as some municipalities have additional requirements.

Distances and plants as an alternative

• Hedges and trees: no height limit, but distance rules apply:
  • Tall trees: at least 2 metres from the boundary.
  • Low hedges: at least 0.5 metres.
  • Shared hedge: possible on the boundary line with neighbours' agreement.​
• Fence on your own land: no neighbours' consent needed, but keep 1-2 metres of clearance to avoid nuisance.

Step-by-step guide to putting up a fence between neighbours

1. Measure the plot boundary (using a cadastral extract or a land surveyor).
2. Talk to your neighbours about height, type and cost sharing (often 50/50 for a shared fence).
3. Check local rules with the municipal planning department.
4. Choose your material within the height limits (wood, composite, mesh).
5. Apply for a permit if needed; leave at least 1 m clear for maintenance access.

Costs and tips

• Price: 50-150 euros per linear metre (depending on material).​
• Tip: Put any agreements with your neighbours in writing (notarised deed or amicable agreement) to avoid future disputes.
• Dispute with a neighbour? The justice of the peace can mediate in conflicts.

Height by zone - summary table:

Thinking of putting up a fence or unsure about the rules in your municipality? A local contractor or estate agent can check the plot boundaries and applicable regulations, so you can enjoy greater privacy without any worries.