A £35m revamp of the curvy 1960s block alongside Piccadilly station is set to bring a new 270-bed hotel to Manchester city centre.
The new designs submitted designs for Gateway House also include a restaurant and bar, retail space and meeting rooms.
The building was formerly occupied by NHS North West before the organisation moved to offices at Piccadilly Gardens.
The plans also feature a three-storey gym on the site and a new block on Ducie Street containing seven floors of office space.
It is hoped the new building will create a better first impression of Manchester. More than 20 million people pass the site every year, according to designers.
They plan to use tiny bulbs to light up the converted property, claiming it will make it the ‘largest piece of public artwork in the city’.
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