January 13, 2026
Canterbury-Bankstown Stormwater & OSD Requirements Guide
Canterbury-Bankstown DCP 2023 stormwater and OSD requirements — what duplex and townhouse builders in Bankstown and Campsie need before lodging.
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Updates from Contrive Consultants.
September 2, 2025
Coastal Development & Stormwater: NSW Overlays Explained
How lagoons, dunes and coastal overlays shape stormwater design on the NSW coast — what builders and developers need to check before…
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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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March 11, 2025
Cumberland Council Stormwater & OSD Rules for Duplex Builds
Cumberland DCP 2021 stormwater and OSD requirements — a practical guide for duplex and townhouse builders in Merrylands, Granville and Guildford.
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October 8, 2024
Campbelltown Council Stormwater & OSD Requirements Guide
How Campbelltown City Council assesses stormwater and OSD under the Sustainable City DCP — for builders in Menangle Park, Mount Gilead and…
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May 14, 2024
Camden Council Stormwater & OSD Requirements: 2024 Guide
Camden DCP 2019 stormwater requirements for builders — OSD, drainage plans and WSUD in Oran Park, Gregory Hills, Leppington and Camden's growth…
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May 7, 2024
Climate Change Factors in Stormwater Design: What NSW Expects
Why NSW councils now ask for climate change factors in stormwater models, how the ARR 2019 interim guidance works, and what it…
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December 12, 2023
Liverpool Council Stormwater & OSD Requirements for Builders
Liverpool DCP 2008 stormwater and OSD rules — what builders in Austral, Leppington and Edmondson Park must include in their drainage plans.
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October 10, 2023
Terrace House Stormwater Design in NSW: Zero-Lot & Easement Guide
Stormwater design for NSW terrace housing — zero-lot boundaries, party wall box gutters and inter-allotment easements explained for builders.
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