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A $56million renovation of the University of Otago's chemistry building will start by the end of this month, the university says.
The project represents about a quarter of the $200million campus rebuild announced by the university in April.
Christchurch construction company Leighs Construction will lead the project, although the work ''will also involve Dunedin builders and sub-contractors'', a university press release says.
The project is expected to be finished by 2018.