Updates from Contrive Consultants.
Design fundamentals for rain gardens and bioretention basins in NSW: filter media specs, plant selection, sizing logic and common approval pitfalls.
Read moreA builder's guide to Hornsby Shire Council stormwater and OSD requirements under the Hornsby DCP 2013, including bushland and sandstone site factors.
Read moreHow The Hills Shire Council assesses stormwater and OSD under DCP 2012 — what builders in Box Hill, North Kellyville and Rouse…
Read moreBelow-ground concrete tanks, above-ground basins or pipe storage? We compare OSD options on cost, site suitability and council approval.
Read moreCommon council requirements and design mistakes on double-storey roof drainage in NSW — upper-to-lower roof discharge, charged downpipes and overflow.
Read moreWhat Water Sensitive Urban Design means for NSW builders, why councils require water quality treatment, and what actually counts as a treatment…
Read moreWhat builders need to know about Northern Beaches Council stormwater and OSD requirements under the Water Management for Development Policy.
Read moreWhat Blacktown City Council requires for stormwater, OSD and WSUD under DCP 2015 — a practical guide for builders and developers in…
Read moreA plain-English guide to on-site detention (OSD) for NSW builders — what PSD and SSR mean, how tanks work, and why councils…
Read moreWhat NSW builders need in a roof drainage plan for CC or CDC approval on a single-storey home, including gutter and downpipe…
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