London firm MUMA Architects will design the extension to Whitworth art gallery located at Manchester University in the UK.

MUMA won the RIBA design competition beating Amanda Levete Architects, Edward Cullinan Architects, Haworth Tompkins and Stanton William.

The practice’s winning design for the £12m extension features a cafe in the tree canopy.

Plans for the extension will be worked on in 2010 before bidding for funds from Heritage Lottery Fund.