If the legal documents passed to you when you bought a property in Stratford sub Castle contain phrases such as....
"The Vendor the Rt Rev. Father in God Wm. by Divine Permission Lord Bishop of Salisbury" ...
then an article written by Kerry O'Connor of the Stratford Local History Group will be of real interest to you. According to his article, if you own a property in Stratford sub Castle, there's a 78% chance that the land on which it was built was once owned by the Ecclesiastical Commissioners for England ie 'The Church'.