Case Studies Archive - My Subdivision https://hjh.wqb.mybluehost.me/website_b6fced6f/case-studies/ Thu, 02 Oct 2025 05:46:47 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://i0.wp.com/mysubdivision.co.nz/wp-content/uploads/2025/10/cropped-Subdivision-website-16.webp?fit=32%2C32&ssl=1 Case Studies Archive - My Subdivision https://hjh.wqb.mybluehost.me/website_b6fced6f/case-studies/ 32 32 249251559 Overland Flow, Compliant Design: Townhouses Approved Without Delay https://mysubdivision.co.nz/case-studies/case-studies-olfp-through-site-townhouse-approval/ Wed, 01 Oct 2025 03:26:52 +0000 https://hjh.wqb.mybluehost.me/website_b6fced6f/?post_type=case-studies&p=400 Location: Central Auckland infillSite type: OLFP crossing site; modest slope; existing dwelling to be retained.Scope: Subdivision with X townhouses and upgraded access/servicing.   The challenge An overland flow path (OLFP) traversed the site, creating flood risk and limiting building platforms. Early concept plans pushed units into the secondary flow path, and access levels conflicted with […]

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Overland Flow, Compliant Design: Townhouses Approved Without Delay

Location: Central Auckland infill
Site type: OLFP crossing site; modest slope; existing dwelling to be retained.
Scope: Subdivision with X townhouses and upgraded access/servicing.

 

The challenge

An overland flow path (OLFP) traversed the site, creating flood risk and limiting building platforms. Early concept plans pushed units into the secondary flow path, and access levels conflicted with stormwater routes. The risk: notification, redesigns, and delays.

Our approach

Scope

  • Three-waters first: We ran a desktop hydrology check to map primary/secondary flows and impervious area impacts.
  • Stormwater strategy: Selected a raingarden + detention combo to manage peak flows and water quality while preserving the OLFP route.
  • Civil/access coordination: Regraded the driveway and adjusted crossing geometry; added local threshold drainage to protect entries.
  • Planning integration: Worked with the planner to align HIRB/setbacks and privacy treatments with the revised levels.
  • Evidence pack: Clear plan set, HIRB/sections, stormwater report with device sizing and OLFP diagrams; drafted AEE with effects management narrative.
  • Pre-app touchpoint (targeted): Focused questions on OLFP management and device acceptability to de-risk RFIs.

The result

Client Quote

“Clear hydraulics up front changed everything. We kept the yield and avoided a long back-and-forth with Council.”
Ben Taylor
Director
  • Non-notified consent with predictable conditions.
  • Programme saved: Decision 5 weeks faster than baseline expectation due to fewer RFIs.
  • Yield protected: Maintained +X townhouses by reshaping building platforms and roof logic near the OLFP corridor.
  • Capex contained: Avoided a costly network upgrade by combining detention with on-site treatment.

Let’s Bring Your Vision to Life

Request a Complimentary Design & Build Consultation

Your consultation includes…

  • Design review and recommendations
  • Site walkthrough and inspection
  • Director-led consultation
  • Selections checklist and comparison matrix
  • Preliminary estimate and budget parameters
  • Programme timeline and indicative move-in date
  • Access to our preferred partner network

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