its amazing what Google Maps and the net can do!! This image is of the
Cavalry Barracks outside of Hounslow, just before the Heathrow Airport runway.

Originally built to defend London against the French in 1793, it is known as the worst military housing in the UK — and was condemned in the 1960s.

The last soldier to be flogged to death in the British Army died at Hounslow Barracks in July 1846.

The famous Crimean War nursing icon Florence Nightingale undertook some of her early training here, and within the barracks are some of the original army accommodation of the period.

from: Wikipedia and other sources