Architect Richard Rogers Partnership has won a £790m competition to design the expansion of the Jacob K Javits Convention Center in New York.

The practice beat off competition from an internationally acclaimed shortlist including Rafael Viñoly Architects, Grimshaw and Morphosis with Gruzen Samton. RRP teamed up with local architect Fox & Fowle for its entry.

The proposed expansion includes a 1500-room hotel, a 6000-seat ballroom – double the size of those currently in New York – a 9 ha living roof, which will be used as public space, and 130,000 m2 of exhibition space.

The centre is part of mayor Michael Bloomberg's bid to reinforce Manhattan's West Side redevelopment programme.

It is thought RRP will now undertake a month-long consultation with local stakeholders.

The original 1986 building by IM Pei is now considered too small.