Ok so this is a bit geeky but has an effect on anyone living near a big building site. Anything more than a few storeys is likely to need deep foundations. Traditionally there used to be pile drivers that made a lot of noise driving concrete foundation poles into the ground. When I heard that the first part of the Gasholder/Tesco development on Kennington Lane needed 600 I was a bit alarmed by the prospect of noise and vibration. Happily I can report that the modern way of doing this is by using giant corkscrews that go into the ground and then have concrete poured down their centres as they withdraw from the hole.
Here is a link to a video about it and some pictures from the Tesco site.
Cllr. Jon Davies.