Featured Project

Multi-Lot Residential Subdivision - Auckland's Northwest
Auckland, New Zealand
Bromley Group was engaged to deliver the principal civil construction works for a multi-lot residential subdivision in Auckland's northwest. The project involved coordinated delivery across earthworks, stormwater infrastructure, retaining walls, culvert construction and pavement formation. The works were undertaken within a rural site containing an existing stream environment, requiring careful sequencing, erosion and sediment controls, environmental management, inspections and coordination with the wider project team.
Scope of Works
- Site establishment, erosion and sediment controls including decant pond construction
- Bulk earthworks and subdivision site preparation
- Subdivision entrance and access road construction including asphalt surfacing and intersection tie-in to the existing road network
- COAL undercut and pavement formation
- Installation and connection of stormwater catchpits, detention tanks and stormfilters, including associated pipework and lot connections - over 45,000 litres detention capacity across three concrete tanks
- Installation of four concrete firefighting water supply tanks
- Culvert construction including a 1m box culvert and timber retaining wall crossing
- Construction of timber retaining walls
- Power and telecommunications infrastructure installation and cable pulling
Site Considerations
The project required multiple civil workstreams to be coordinated across a live subdivision site with variable ground conditions and an environmentally sensitive stream area. Works were sequenced around weather, winter earthworks requirements, council and engineering inspections, drainage levels, retaining-wall construction and access-road formation. Changes to the culvert design and stormwater infrastructure required the construction programme to remain adaptable while maintaining environmental controls and site access.
Outcome
The project established the core civil infrastructure required to support the residential subdivision, including formed access, stormwater management, retaining structures, culvert works and erosion protection. The completed works provide a coordinated and durable civil platform for the development while addressing drainage, access, environmental and long-term maintenance requirements.

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