Fencing across Hornsby Shire Council

What we install in Hornsby

• Colorbond fencing – new boundary fences and replacements in 1.5 m to 2.4 m heights, any Colorbond colour, either sheet profile
• Fence height extensions – 300 mm or 600 mm louvre, lattice, slat or sheet toppers on your existing Colorbond posts
• Retaining walls under fences – treated pine or aluminium sleeper walls built directly under the new fence where levels differ
• Timber fencing – treated pine paling, lapped and lap-and-cap on galvanised steel posts

Ground, access and local conditions

Sandstone ridges and gullies with shallow soil in places; bushfire-prone land borders most of the shire.

• Bush-backed blocks in Hornsby Heights, Berowra and Mount Colah favour steel fencing; Colorbond gives ember and termite resistance that timber cannot.
• Rock is common – we allow for coring post holes where sandstone is close to the surface.
• Cherrybrook and Pennant Hills homes often add 300 mm or 600 mm louvre or lattice extensions to existing Colorbond for privacy from two-storey neighbours.

Fence rules in Hornsby Shire Council

Under the NSW exempt development rules a boundary fence behind the building line can be up to 1.8 m high without approval on most residential lots. Hornsby Shire Council applies the NSW codes; heritage conservation areas in Beecroft, Cheltenham and Wahroonga limit front-fence height and materials. Pool barriers must meet AS 1926.1-2012 regardless of council. Read our NSW pool fencing guide, and confirm anything about your own block with Hornsby council.