Case Studies
Stormwater, flood and civil projects approved across NSW councils.
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Flood & Stormwater Without Modelling: Alterations & Additions, Randwick
Randwick City Council · Alterations & Additions
The client wanted to avoid the cost of flood modelling and a new stormwater system. We worked with the architect to keep the design within the council’s flood controls, and a hydraulic check showed the existing drainage could stay. Approved.
Water quality on a constrained site - hotel alterations & additions, Ballina Shire Council
Ballina Shire Council · Commercial (Hotel)
New parking triggered Council’s water quality controls, but tight headroom and the existing buildings left no room for a single treatment device. We split the treatment into several smaller measures that met Council’s targets and fitted around the existing buildings. Approved.
Stormwater & OSD on a heritage site — commercial building, Ku-ring-gai
Ku-ring-gai Council · Commercial
A heritage cottage, a partially low-lying site and almost no headroom for a tank. The answer was two drainage systems rather than one. Approved.
Overland Flow Assessment — Single Dwelling, Mosman
Mosman Council · Alterations & additions
The site sits low in its catchment and floods in large storms. The question was whether street-level extensions could be built at all. Approved.
Vehicle Access on a Regional Road — Alterations, Ku-ring-gai
Ku-ring-gai Council · Alterations & additions
A regional road frontage demands a turning bay. A narrow site leaves nowhere to put one. B85 modelling found the smallest that worked. Approved.
Change of Use — Stormwater, Flood & Public Domain, Inner West
Inner West Council · Change of use
Wall-to-wall boundaries with nowhere to run pipes, a basement surrounded by floodwater, and a driveway that had to become a footpath. Approved.
Disclaimer: Illustrative renders are AI-generated. Engineering outcomes and real details are described in the approved projects.