Bentley Redevelopment Subdivision and Remediation

Project Overview

Bentley Redevelopment Stage 1 is part of a broader master plan to transform Bentley, just 8 km south of the Perth CBD. The 22-hectare site, north of Manning Road between Dumond Street and Nyamup Way, is being renewed to create a more connected, sustainable, and vibrant community.

Separable Portion A, located in the northeastern corner of the precinct, involved the subdivision of land to create 44 new residential lots. Ertech was engaged to deliver the land development works, bulk earthworks, retaining walls, drainage, services installation and relocation, new and connecting roads, footpaths and kerbing.

Separable Portion B, located west of the Stage 1 subdivision, involves earthworks remediation across a larger footprint, including over-excavation of loose material and removal of unsuitable or deleterious fill.

Ertech’s proven capability in delivering land subdivisions in sensitive urban environments was a key factor in being awarded the project and core to the project’s success.

Fast Facts

ClientDevelopmentWA
LocationBentley, WA
Year of Completion 2026

Scope of works

Separable Portion A – Stage 1 subdivision scope included:

Clear and mulch trees identified for removal
Install and maintain tree protection fencing
Undertake demolition and remove waste
Strip topsoil and other deleterious material
Earthworks cut-to-fill and compact placed fill
Over-excavate to remove any rock and dispose off-site
Over-excavate 300mm below surface to remove asbestos-contaminated materials
Construct retaining walls using reconstituted limestone blocks, screen walls and uniform fencing
Construct roadworks, kerbs and paths
Construct stormwater drainage and below-ground structures
Construct wastewater infrastructure, including protection of live assets in existing road verges
Construct water reticulation pipelines
Install underground power and street lighting, and NBN Co-compliant pit and pipe comms network
Ancillary works including stabilisation of verges and batters, installing street name signs, traffic signs and pavement markings, etc.
Coordinate activities with Public Utility Authorities
Coordination with landscape contractors and builders sharing the site

Separable Portion B – Remediation and Earthworks scope includes:

Full Site:

Clear remaining trees
Strip 200mm of topsoil and stockpile
Screen topsoil stockpiles, place clean topsoil back onto site and dispose of unsuitable topsoil off-site