Sometimes it is possible to use these pressures to regenerate and revitalise places that have lost their economic rationale, most visibly at Docklands and Canary Wharf. But elsewhere, especially in the City, it isn't so easy. Space is scarce, forcing new office building onto sites that were, until recently, regarded as London's traditional East End. These changes, although inevitable, and in many cases welcome, require sensitivity and care, if they are to strengthen London's economy and lift the fortunes of the capital's poorer communities. Shoreditch, for example, where the offices of my own charitable foundation are, has enjoyed a tremendous renewal in recent years, as many small and medium-sized enterprises have found that this crowded network of adaptable, well-lit and robust old buildings offers a perfect urban environment in which to flourish.