My Lords, the noble Lord, Lord Campbell-Savours, gave an extremely eloquent description of the Churchill Estate in Westminster and the various problems it faces, which are very real. It is possible to look at other estates across central London that have quite similar problems and a trajectory that has led to the same type of housing tenure and ownership. However, many of the problems he described come from the overall shortage of housing supply in London and would be not necessarily eliminated but largely cured if many more houses were provided in London.
That is why the provision of two-for-one replacement in London is so welcome. It is not without its problems. The noble Lord, Lord Kerslake, mentioned that the replacement housing should be in the same local authority or general area. There is a tradition that London boroughs build social housing outside their own areas. I return to the City of London Corporation, which owns social housing spread out over quite a wide area across London. It has traditionally always done so. It is important that the replacement housing should be where the people who will occupy it wish to live. That is a critical deciding factor, and one that can be dealt with only by the local authority. It is not one that we can impose in the Bill, nor one that we should even contemplate imposing.