October 21, 2025
Landscape Plans for DAs: What Councils Assess and the WSUD Link
What NSW councils assess in DA landscape plans — landscaped area, deep soil, canopy, species — and how good landscape design integrates…
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Updates from Contrive Consultants.
August 12, 2025
City of Parramatta Stormwater & OSD Requirements Explained
City of Parramatta stormwater rules under DCP 2023 — OSD to the UPRCT handbook, drainage plans and WSUD for infill and high-density…
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April 8, 2025
Blue Mountains Council Stormwater & Drainage Requirements
Blue Mountains DCP 2015 stormwater and WSUD requirements for builders — ridge-top development, World Heritage catchments and sensitive discharge design.
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December 10, 2024
SPEL Stormwater Products on NSW Projects: Choosing a Device
Stormsack, Stormceptor, Puraceptor and SPEL Filter compared — what each SPEL device does and how to choose the right one for a…
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July 9, 2024
Ocean Protect Systems: OceanGuard, StormFilter & More in NSW
A consultant's guide to Ocean Protect stormwater devices — OceanGuard pit baskets, StormFilter cartridges and Jellyfish — and how they fit NSW…
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June 11, 2024
Central Coast Council Stormwater Requirements (DCP 2022)
Central Coast DCP 2022 stormwater and water cycle management requirements for builders in Gosford, Wyong and Warnervale — lagoons, wetlands and WSUD.
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February 13, 2024
Cartridge Media Filtration: StormFilter for Tight Urban Sites
How cartridge media filtration systems like StormFilter achieve tertiary stormwater treatment on tight urban sites where bioretention won't fit.
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July 11, 2023
Penrith Council Stormwater, OSD & WSUD Requirements Guide
Penrith DCP 2014 stormwater rules explained — OSD, WSUD and drainage plan requirements for builders in Jordan Springs, Glenmore Park and Orchard…
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April 11, 2023
GPTs and Pit Inserts: Where the SPEL Stormsack Fits
How gross pollutant traps and pit inserts like the SPEL Stormsack work, what they remove, and where they belong in a NSW…
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November 8, 2022
Rain Gardens & Bioretention Basins: NSW Design Fundamentals
Design fundamentals for rain gardens and bioretention basins in NSW: filter media specs, plant selection, sizing logic and common approval pitfalls.
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