Key points at a glance
- Neighbours generally share the cost of an adequate boundary fence equally.
- The Fencing Act 1978 provides a formal “fencing notice” process to agree work and costs.
- You cannot force a neighbour to pay for an unnecessarily expensive fence.
- Disputes can go to the Disputes Tribunal or District Court.
Sharing the cost
Under the Fencing Act 1978, adjoining owners are generally each liable to contribute equally to an “adequate” fence on their shared boundary. What is adequate depends on the properties and the purpose of the fence.
If you want a fence that is more expensive than adequate, you can still build it — but your neighbour is usually only required to contribute their half of the cost of an adequate fence, with you paying the difference.
The fencing notice process
The Act sets out a formal process starting with a “fencing notice” that proposes the fence, the work, the materials and how costs will be shared. Your neighbour can agree or serve a cross-notice proposing changes.
It is always best to reach a friendly written agreement first. If you cannot agree, the fencing notice process protects your position, and unresolved disputes can be taken to the Disputes Tribunal or the courts.
For homeowners
- Talk to your neighbour and try to agree in writing before starting.
- Use a fencing notice if you need to formalise cost sharing.
- Remember a neighbour only has to contribute to an “adequate” fence.
For tradespeople
- Advise clients that boundary fences may involve the Fencing Act process.
- Provide clear quotes clients can share with neighbours.
- Confirm the boundary line before building — a survey may be needed.
Official sources
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