For the past few nights we have been kept awake by a very loud, irregular banging noise. It sounds like someone hitting wood with incredible force, or sometimes like single, resonant explosions. They are so loud I heard them over the storm and through double glazing and they make the windows shake. They seem totally random, no rhythm to them at all. I have leaned out the back of our house, towards Crystal Palace Road and can see other neighbours doing the same. They could be coming from gardens on Crystal Palace or Lacon Road, or even further as the noise reverberates around so much. It begins just before midnight and lasts until I can get to sleep through it and has woken me up every morning as early as 5am. This morning it has just finished. Can anyone shed ANY light on what this is?