Building near trees in Seven Hills
Plenty of Seven Hills streets are swapping mid-century single storey homes on 600 to 900 square metre blocks for two storey houses with two to three times the floorspace. A bigger footprint leaves less room for the trees that were there.
In NSW, tree clearing that's part of wider development goes through the development application. City of Parramatta says it can't approve removing a tree because of a future development, and its tree form isn't the path for complying development; book a Duty Planner appointment instead.
A tree that stays has to be protected through the build. AS 4970:2025 sets out tree protection zones (the area around a tree that has to be left alone during building work), and our tree protection zones guide shows how they're worked out.
Tree removal in Seven Hills: what's local
Two councils, two tests
Blacktown counts a tree from over 3 metres tall or a trunk over 200mm at 1.0 metre. City of Parramatta may need permission for any tree or palm 5 metres or taller, or a planted tree from 3 metres. Your rates notice says which council you're dealing with.
A woodland remnant
Grantham Heritage Park, what's left of the old Grantham poultry estate, holds some of the last Cumberland Plain woodland in the area, the grey box and forest red gum country that once covered the plain. A big old native on a nearby block could be part of that community, which raises the stakes for any removal.
Storm history
The AIDR records extensive damage at Seven Hills, Blacktown and Parramatta in the severe storm of 21 January 1991. After a big storm, the NSW SES helps when a tree blocks access or may fall on the house.
One network
Both council areas are on Endeavour Energy's network. Report a tree on a line to Endeavour Energy, and stay well back from it.
Questions to ask an arborist in Seven Hills
- Which council the lot is in, and which trees meet that council's size test
- Whether any tree is on a heritage item, a significant tree register or mapped biodiversity land
- Which trees the builder wants gone, and which could stay behind a protection zone
- Who handles the tree side of the approval: you, the builder or the certifier
- What replacement planting the approval will ask for
Hiring an arborist in Seven Hills
Get an arborist out before the designer finishes the plans. Shifting a driveway or a wall a metre can save a good tree, and that's a far easier conversation on paper than after the slab is poured.
