The new Surfdome will feature restaurants, bars, cafés, nightclubs and hotel accommodation, and the practice is already eyeing up a plot for the scheme in Stratford City next to the London 2012 Olympic Park.
The centrepiece of the complex will be an indoor surfing centre, including a series of surfing wave pools, flowriders, climbing walls and 'extreme sports-influenced attractions.'
A main 75m-long surfing pool will boast waves of up to 3m high generated by computer controlled reefs.
S&P Architects director Chris Barr said: 'As leisure specialists, our appointment to design this major facility is hugely significant.
'Given that surfing is growing in popularity, we expect the venture to be a great success.'