Big blocks, steep bushland slopes and tall gum trees — the Upper North Shore and Hornsby Shire have some of the largest retaining wall projects in Sydney. The white concrete sleeper wall in the photo is one of ours in the Hornsby Shire, built around established trees on a sloping block.
Typical Upper North Shore retaining wall jobs
- Terracing large sloping blocks for lawns, pools and play areas.
- Boundary walls on bushland edges where the ground falls away steeply.
- Walls around established trees, built to protect root zones.
- Driveway walls on long, steep driveways — usually engineered.
What to know building here
Much of this area is bushfire-prone land, which is one reason we often recommend concrete or stone over timber near the house. Ku-ring-gai and Hornsby have strong tree protection rules, so walls near significant trees may need an arborist's input and approval. Soils vary from sandstone to heavy clay, sometimes on the same block, which is why every wall gets proper drainage.
Retaining walls we build in Upper North Shore & Hornsby
- Concrete Sleeper Retaining Walls
- Sandstone Retaining Walls
- Timber Retaining Walls
- Block & Besser Retaining Walls
- Gabion Retaining Walls
- Engineered Retaining Walls
- Retaining Wall Repairs & Replacement
- Retaining Wall Drainage
Suburbs we service in Upper North Shore & Hornsby
- Pennant Hills
- Thornleigh
- Normanhurst
- Hornsby
- Waitara
- Wahroonga
- Turramurra
- Pymble
- Gordon
- Killara
- Lindfield
- Roseville
- St Ives
- West Pymble
- Beecroft
- Cheltenham
- Epping
- Asquith
- Mount Colah
- Berowra
- Cherrybrook
- West Pennant Hills
Don't see your suburb? We work right across Sydney — ask us.
Frequently asked questions
Do you build retaining walls in Upper North Shore & Hornsby?
Yes. We build concrete sleeper, sandstone, timber, block and engineered retaining walls across Upper North Shore & Hornsby, including Pennant Hills, Thornleigh, Normanhurst, Hornsby, Waitara, Wahroonga and surrounding suburbs.
Do I need council approval for a retaining wall in Upper North Shore & Hornsby?
It depends on the height, location and what the wall supports. Upper North Shore & Hornsby is covered by Ku-ring-gai and Hornsby Shire Councils. Low walls meeting the NSW exempt development standards often don't need approval; taller or boundary walls usually do. We check the controls for your address — see our approval guide.
How much does a retaining wall cost in Upper North Shore & Hornsby?
Most walls fall between roughly $300 and $1,400 per square metre of wall face depending on material, height and access. Tight access and rock can add cost. See our cost guide or ask for a free fixed quote.