Banksia serrata · Proteaceae
Old Man Banksia is a protected tree in effectively every council Pro Climbing Tree Services covers. Expect to need a tree permit, or a development application where the property is heritage listed or in a heritage conservation area.
Gnarled twisted form with thick warty grey bark. Leaves are stiff, leathery and strongly saw toothed along the margins. Large grey green flower spikes, then the heavy woody cones with protruding follicles that give the tree its character.
Sandstone ridges and heath through the Northern Beaches, Ku-ring-gai, Hornsby and Lane Cove. Common at Belrose, Terrey Hills, Duffys Forest and St Ives.
Councils defend this one. Slow growth and habitat value mean mature Old Man Banksias regularly appear on significant tree registers, and removal applications need strong justification. Where the tree is being retained through a build, a tree protection zone and supervision by a project arborist is the norm.
Status below is for a tree on private land that has passed the council's size threshold. Heritage items, heritage conservation areas, significant tree registers, biodiversity mapping and conditions of development consent override every exemption shown here.
| Council | Status | What it means |
|---|---|---|
| Northern Beaches | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Ku-ring-gai | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Hornsby Shire | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| The Hills Shire | Confirm with Council | Council holds its species exemptions in a document rather than on its website, so confirm this species with Council before treating removal as exempt. Size thresholds apply in the meantime. |
| Blacktown City | Permit required | Council does not run a species exemption list. A permit is required once the tree passes the size threshold, and each tree is assessed on its own merits. |
| North Sydney | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Willoughby | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Lane Cove | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| City of Ryde | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Hunters Hill | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| City of Sydney | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Inner West | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Woollahra | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Waverley | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Randwick | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Bayside | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Georges River | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Strathfield | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
| Burwood | Confirm with Council | Council holds its species exemptions in a document rather than on its website, so confirm this species with Council before treating removal as exempt. Size thresholds apply in the meantime. |
| Canterbury-Bankstown | Permit required | Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. |
Banksia serrata is extremely sensitive to root zone disturbance, soil compaction and changes to drainage. Damage during construction often shows up as decline twelve to twenty four months later.
This encyclopedia is a practical guide for Sydney property owners, not legal advice. Council tree rules change, and exemptions are frequently overridden by heritage listings, heritage conservation areas, significant tree registers, biodiversity mapping, endangered ecological communities and conditions attached to development consent. Always confirm the current rules with your council for your specific address before any tree work begins, or ask us to check it for you.
Our arborists work across 20 Sydney councils every week. We will identify the species, check the rules for your address and handle the permit application if one is needed.
