Any large trees or bushes removes nearby recently? If something that previously sucked up a load of water has been removed, depending on the local soil (London clay is pretty affected), it can significantly affect your foundations, particularly if it is an older house with shallow foundations. Similarly, if a new tree/bush has been introduced and is sucking up more water than before.
IWASE (I was a structural engineer)
Any large trees or bushes removes nearby recently? If something that previously sucked up a load of water has been removed, depending on the local soil (London clay is pretty affected), it can significantly affect your foundations, particularly if it is an older house with shallow foundations. Similarly, if a new tree/bush has been introduced and is sucking up more water than before.
Have a look here if you think it might affect you:
http://nhbccampaigns.co.uk/landingpages/techzone/previous_versions/2011/Part4/section2/appendix.htm#42A