A wind monitor is to be installed on the roof of Portland Place, paving the way for two domestic wind turbines. The device will be in place for four months and is due to feed data back to Westminster council. The RIBA is currently awaiting the council's planning decision. Measurements of wind speeds at the top of the building found the turbines will exceed noise limits on only two days a year. Vice-president for practice Tim Gough said: 'We believe that living and working in a sustainable way is crucial to minimising damage caused by air pollution and the greenhouse effect.'