224 Neilson Street, Building B – Onehunga

Project Budget: $100+ Million
Completion Date: Building B completed first, late 2024/early 2025
Location: 224 Neilson Street, Onehunga, Auckland (3.5 ha site)
Client / Builder: Argosy Property / Macrennie Commercial Construction

About the project:
Argosy’s flagship industrial estate on a 3.5 ha brownfield site in Onehunga’s central industrial precinct: two high-stud warehouses (up to 13 m at the knee) plus 3,400 m² of breezeway, built to a 6 Green Star Industrial standard. With roughly 1,750 rooftop solar panels generating over 1.2 GWh a year, this is one of NZ’s largest rooftop PV installations, alongside 980,000 litres of annual rainwater harvesting, low-carbon concrete and steel, and EV truck-charging capacity. Building B, the first warehouse completed (~4,900 m²), is fully leased.

HDG Pipework
TYCO Sprinklers
Seismic Bracing
Roll Groove Grinnell Fittings
Mechanical Tees
ModFrame Pumproom Supports
Valves
Hanging Products
Pre Fabrication of Pipework
Orbital Fire Delivery
Custom Welding
Product Advice and Support
Valveset Manufacture

Key Features:

  • 6 Green Star Industrial Design – One of NZ’s most sustainable industrial builds.
  • ~1,750 solar panels – Generating 1.2+ GWh annually; EV truck charging capacity.
  • 980,000 L annual rainwater harvesting – Low-carbon concrete and steel.
  • Warehouses – 4.900m², 13 m knee height.

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