Retaining Walls Auburn
Concrete sleeper, core-filled block and sandstone retaining walls for Auburn homes, duplex developments and driveway level changes.
Retaining Walls in Auburn
Auburn sits low, on the alluvial flats either side of Duck River and Haslams Creek, with pockets of shale clay on the higher ground towards Regents Park. The low country carries fill from a century of industrial and residential development and the water table can be close to the surface, which changes how a wall has to be founded and how it has to be drained.
Auburn also has as much duplex and multi dwelling work as anywhere in Cumberland, and those jobs almost always need retention along a driveway or between the new building and the neighbour. We build core-filled besser block on reinforced footings, concrete sleeper walls on galvanised H beams and sandstone where the frontage calls for it, coordinating with the builder so the wall is in before the slab or driveway pour.
Anything over 1 metre, or a wall picking up load from a driveway, basement ramp or the adjoining property, is engineer designed and taken through Cumberland City Council where approval applies. Free measure across Auburn NSW 2144 and a fixed written quote. Call 0492 879 796 to book yours.
Retaining Wall Services in Auburn
- Core-filled block retaining walls
- Concrete sleeper retaining walls
- Sandstone frontage and garden walls
- Duplex and multi dwelling retention
- Driveway and ramp edge walls
- Boundary level change walls
- Subsoil drainage and pumped outlets
- Engineering, certification and approvals
Retaining Wall Options in Auburn
Block Retaining Walls
Reinforced core-filled besser, the standard for Auburn duplex driveways where the wall carries vehicle load right behind it.
Concrete Sleeper Walls
Fast, economical steel and concrete walls for rear boundaries and side setbacks on standard Auburn blocks.
Sandstone Walls
Natural stone for front gardens and street frontages where a rendered or raw block face would look too industrial.
Development Retention
Walls built to the engineer drawings on duplex and townhouse sites, sequenced so the builder is never waiting on us.
Low Ground Drainage
Extra attention to subsoil drainage on the flats near Duck River where the water table sits high after heavy rain.
Boundary Walls
Careful set out so a wall on an Auburn boundary stays within your title and the neighbour knows what is happening before it starts.
Retaining Wall Service Area Around Auburn
Retaining Walls Auburn FAQs
Do I need council approval for a retaining wall in Auburn?
Under 1 metre, not surcharged and away from boundaries, easements and stormwater lines, a wall can frequently be built as exempt development. Above 1 metre, or where the wall retains a driveway, a basement ramp, a pool or the neighbouring property, Cumberland City Council will require engineered plans and an approval. On development sites the retention is usually already shown on the approved drawings, and we simply build to those.
Why is drainage such an issue on low lying Auburn blocks?
Because there is often nowhere obvious for the water to go. Near Duck River the ground is alluvial and can stay saturated for days, so a wall without a drainage layer ends up holding back waterlogged soil that weighs far more than dry fill. We install a slotted agi line in clean aggregate wrapped in geotextile and take it to a legal discharge point, and where gravity will not do it we design a pumped or charged outlet instead.
Who pays for a retaining wall between two Auburn properties?
Retaining walls fall outside the dividing fence cost sharing rules, so it usually comes back to who created or benefits from the level difference. On a duplex or knockdown rebuild the party doing the works is normally responsible for retaining their own excavation. Where two established Auburn owners share an old failing wall, a written cost sharing agreement before work starts saves a lot of grief. We quote the wall and the fence above it separately.
Can a Colorbond fence go on top of an Auburn retaining wall?
Yes, and it is the usual finish on duplex boundaries. It has to be allowed for in the wall design because a fence acts as a sail and adds overturning force at the very top of the structure. We either extend the retaining posts to become fence posts or grout fence posts into the top course of a block wall. Building both together also means one crew, one set out, and no gap under the fence.
How deep should the footing be for an Auburn block wall?
A reinforced besser wall sits on a strip footing with starter bars, and its size depends on wall height, soil classification and any surcharge. On the softer alluvial ground near the creek flats the footing needs to be wider and founded deeper than it would be on the shale ridge towards Regents Park, and on some sites piers are the better answer. The engineer specifies it and we pour to the drawing rather than to a guess.
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