The six-storey scheme, led by the European arm of Kajima Corporation, will feature a 'striking atrium' maximising natural reading light and a new main entrance enhancing the library's visibility.
It will also include a sixth-floor viewing platform and create a 'new urban square' along New Bridge Street and John Dobson Street. Its green credentials range from low-energy heating and cooling to WCs serviced by rain water.
Newcastle City Council has been awarded £40.2 million from the Department of Culture, Media and Sport to replace the existing City and High Heaton libraries.
Commenting on RyderHKS's win, lead architect Ian Kennedy said: 'We wanted the City Library to be a symbol of creative design and a model of 21st Century library facilities.
'It will be a delight to use, visit and pass by, inspiring local, civic and regional pride.'
Councillor David Faulkner added: 'This was a difficult decision as the two remaining bids were both of an extremely high standard. The proposals are exciting and imaginative and the new buildings will be a major asset to the city'.