My Lords, the noble Lord, Lord Dubs, is definitely on to something here. What one reads about in the Evening Standard and elsewhere being done to basements is amazing. I do not know whether anyone else here watches the “Grand Designs” programme, but being an addict of property porn I watch it from time to time. Recently, there was an example of a small, typical mews house in a mews area of London, where the owner decided that he wanted to have a ballroom in the basement and, underneath that, it could be collapsed into a swimming pool. This was constructed, after immense difficulty affecting the local inhabitants. Unfortunately, a subterranean stream was discovered when they dug down into the basement, which flooded the whole area. That is the sort of thing can happen as a result of the megalomania, frankly, of some people. One billionaire in London wanted to show all his 24 Jaguars in an exhibition space in his basement. This is absurd and should not be allowed; it will have consequences.
Secondly, the noble Lord is absolutely right: party wall agreements do not protect people at present. I live in Hammersmith and Fulham, and I know from personal example that the noise is horrendous. My noble friend Lady Gardner is quite right: you want some relief at weekends from the noise. A friend of mine has had to vacate her property in Piccadilly, where someone is constructing a huge bar and God knows what in the basement, to live somewhere else at her own expense, because she cannot live with the noise at night: it is horrendous. That is all-night work, never mind at weekends.
So London is experiencing a real problem at the moment, and not just in rich areas. As a former MP for Orpington, I could give examples of what is happening there. Although I understand that the amendments may not be perfect, as my noble friend Lady Gardner said, I hope that the Government will be sympathetic. It is a widespread problem in London, and the Government should look at it with great care.