Dave East wrote:
This rampant bamboo is growing to within a few feet of this 1936 terraced
house which is built on ground which has the top 12 inches being Loam and
then Clay below that.

http://tinypic.com/r/22hmz5/7


Might this situation result in excessive moisture absorption by the bamboo
resulting in movement to the foundations?



It apparently unusual for bamboo roots to go deeper than 12", so its
unlikely they will go under the foundations.

Trees are far more dangerous - willows in particular.

I would not worry.