The laying of concrete was one of the last elements of strengthening work which, along with new lifts and stairwells, would allow new uses of the building, company director Russell Lund said.
"It is a delicate operation, as it is a concrete overlay of the existing timber floors, threaded around dozens of timber columns," Mr Lund said.
![Concrete is laid in the New Zealand Loan and Mercantile building in Dunedin yesterday. PHOTO:...](https://www.odt.co.nz/sites/default/files/styles/odt_landscape_extra_large_21_10/public/story/2022/08/loan_and_merc_17082022.jpg?itok=H8gB83pv)
Mr Lund said the project included use of recycled native timber.
The building was constructed from 1872 and it began as Otago Wool Stores for stock and station agents Driver Stewart and Co.
Uses over the years have included as an air-raid shelter, offices and warehousing, and the upper storey was let to clothing manufacturer Sew Hoy and Sons, it was stated in Heritage New Zealand information.
![The Loan and Mercantile building circa 1880. PHOTO: ODT FILES](https://www.odt.co.nz/sites/default/files/styles/odt_landscape_extra_large_4_3/public/story/2022/08/rattray_street.jpg?itok=UqGkmOU8)
The New Zealand Loan and Mercantile Agency Co, which provided investments and loans for trade and commerce in New Zealand and Australia, occupied the building until the 1960s, when the business ceased operations.
Mr Lund said the project had generated interest internationally.
The premier men’s and women’s football teams from Northern AFC in Dunedin had chipped in on some of the work, carting around concrete blocks and laying out reinforcing steel.