Corner blocks sit at two intersecting streets, and that position brings tighter fencing rules than a standard lot. The limits exist to keep sight lines clear for drivers, cyclists and people on foot. Build too high near the corner, or block the view across a driveway, and the council can ask you to alter or remove the work at your own cost. Here is how fence height rules for corner blocks in NSW generally work, and the checks worth doing before you order materials.
Why fence height is stricter on corner lots
A fence near an intersection can hide an approaching car or a child stepping off the kerb. To manage that risk, NSW planning controls limit the height of anything built close to a corner boundary, whether the fence faces the front road or the side road.
The common rule is a sight triangle: within a set distance of the corner, a fence and any structure must stay low enough to see over. Many councils set that reduced height at around 1 metre and measure the triangle back several metres from the corner along each boundary. The exact distances and heights are set by each council in its Development Control Plan (DCP), so they vary from one area to the next even though the principle is the same across the state. The NSW Planning Portal is the starting point, and your council's DCP has the numbers that apply to your block.
Height limits for front, side and rear fences
Away from the corner itself, fence height on a residential block generally follows the pattern below. Treat these as typical figures and confirm them against your council, because they are set locally.
| Fence position | Common maximum height |
|---|---|
| Front fence facing the primary road | around 1.2 m |
| Side or rear boundary, lightweight fence (metal or timber) | up to 1.8 m |
| Side or rear boundary, masonry | around 1.2 m |
| Anything inside the corner sight triangle | around 1 m |
On a corner block the side boundary that runs along the second street is usually treated in two parts. The portion near the road follows the lower front fence limit, and the rear portion can often go higher, provided it stays outside the sight triangle. For the Newcastle and Lake Macquarie area, check City of Newcastle and Lake Macquarie City Council for the figures that apply to your street.
Transparency and safety requirements
Height is only half of it. Where a fence faces a street, many councils also require part of it to be see-through so the view across the boundary stays open. A typical control asks for a share of the fence above roughly 400 mm to be open, using spaced pickets, slats or mesh, and keeps solid piers narrow.
Chainwire and welded mesh suit this well, because the fabric is open by design and keeps sight lines clear while still marking the boundary. A solid panel of the same height can fail the transparency test even when the height itself is fine, so the design matters as much as the measurement. Confirm the open-area requirement with your council before you settle on a style.
Heritage zones and bushfire areas
Two overlays can change the rules again. In a heritage conservation area, the DCP often asks fencing to match the character of the street, which can limit materials, height and detailing. In a bushfire-prone area, fencing near the building and boundaries should use non-combustible materials, and gates need to stay accessible for emergency crews. The NSW Rural Fire Service publishes the planning guidance for bushfire-prone land. You can check whether either overlay applies to your block through the NSW Planning Portal's mapping tools.
When council approval is required
A fence that meets the standard height, transparency and setback rules is usually exempt development, meaning no application is needed. You step outside that when the fence is taller than the limits, blocks visibility inside the sight triangle, uses non-compliant materials, or sits in a heritage or bushfire overlay. In those cases a Development Application is the path, and the council assesses it on safety, amenity and planning grounds. Approval is not automatic, so build the design around the rules rather than planning to argue for an exception.
Practical checks before building
- Confirm the boundary with a registered surveyor if there is any doubt about where the line sits.
- Talk to your neighbour early and follow the Dividing Fences Act 1991 (NSW) for how the cost of a shared boundary fence is split.
- Check for underground services with Before You Dig Australia before any posts go in.
- Choose materials suited to the exposure, especially in coastal or bushfire-prone areas.
- Leave room along the fence line for future maintenance and clearing.
The takeaway
On a corner block the number that catches people out is the sight triangle near the intersection, not the height along the rest of the boundary. Get your council's DCP figures for the triangle distance and the transparency requirement first, pick an open fence style that keeps the view clear, and confirm your boundary before you dig. Rules and council requirements change over time, so treat the figures here as a guide and check the current controls with your council before you start.