We want to reimagine Grosvenor Square — for locals, visitors and Londoners — and for generations to come. The generations who will shape one of the greatest cities in the world. We’ve polled Londoners for their ideas. We've talked to locals and to visitors. We’ve set up an independent panel of experts. And now we’re launching a call for ideas from urban visionaries and place-makers to help make Grosvenor Square a sensation once again.