You can be forgiven for passing by this crumbling ruin even without a first look. It is certainly not an advertisement for the attractions of Fort St George; even though it is listed as a protected monument, it has certainly been left unprotected for a very long time.
Once upon a time, this was the residence of Arthur Wellesley, 1st Duke of Wellington. This is the same Wellesley who went on to be a hero at the battle of Waterloo, but for all that, he does not seem to have had made much of an impression on the good people of Madras.
Unlike its neighbour, Clive House, the Wellesley house is just marking time until it comes down completely. So, if you want to see (what is left of) it, head out to the Fort right now!