Trees on public land

Tree roots are in my pipes

Tree roots will generally only invade pipes if they are leaking, and water and nutrients are seeping into the soil.

Most old sewer pipes are usually clay pipes, have been laid in sections and are well-aged. They start leaking at the joints, and fibrous roots then penetrate the pipes, expand and block them.

This problem is resolved by replacing old clay pipes with new PVC pipes or re-sleeving the line.

Removing the tree does not fix the hole in the pipe and other vegetation is likely to capitalise on the opportunity for moisture and nutrients.

To consider any claims relating to Council-owned trees that have roots blocking privately owned pipes, the property owner must submit a detailed plumber's report that includes:

  • a map and plan showing all trees, including species, and the location of pipes and blockage
  • the type of pipes and approximate age, condition and depth
  • the proposed remedial action and evidence of costs.

Council may also request further information including proof that the roots causing a blockage are from a public tree.

Contact Council

Our Customer Service Centre operates from 9am to 5pm. Our Council Rangers are on duty and contactable seven days a week from 5.30am to midnight.

Address: Customer Service Centre, 200 Miller Street, North Sydney, NSW 2060

Telephone: (02) 9936 8100

Trees

Trees growing less than three metres from a building are NOT cut down

Each tree close to a building will be assessed individually. The assessment officer will decide based on the tree species, the type of building and technical evidence to prove a tree is causing structural damage to the property or likely to in the future.

Tree management plans and policies

We have key plans, policies and strategies that direct our management of trees on public and private land.

View our tree policies