About

A new waterfront workplace bringing ACC's Dunedin teams together on one of the city's most historic sites, built through the archaeology uncovered beneath it.

Ōtepoti ACC Building

Client

Ngāi Tahu Property Limited

Value

$45M

Location

Dunedin

Status

Completed 2025

Ōtepoti ACC Dunedin is a $45 million, four-storey office building on historic Dunedin Street, developed by Ngāi Tahu Property with ACC. At 8,000 square metres, it brings four separate ACC premises and close to 650 staff under one roof, on a waterfront site rich in history.

Dunedin's poor ground and its layered past shaped the job. RCP tailored the approach to the market, running excavation, land remediation and piling up front, in parallel with archaeological investigation, so the in-ground risks were cleared before design finished and the main contractor arrived. As demolition reached ground level, the site gave up its history, church and school footings, 1870s basement walls, and further back a waka landing and food-gathering place.

Built through the archaeology

RCP provided client representation, contract administration, procurement, programming and construction management across the enabling works and the build. Archaeologists were on site full-time, and work stopped whenever a significant find appeared, with careful documentation under the resource consent conditions. Separating the enabling and main contracts meant the site was cleared and remediated before main construction began, keeping the project on track.

Cultural engagement ran through the design, with the façade and landscaping carrying local iwi narratives, and the project made room for local talent, including an internship with local iwi that RCP and Ngāi Tahu set up for a young member of the iwi. Built to seismic standards and with sustainable features, it will give ACC a resilient, modern and accessible home in Dunedin.