You would be forgiven, reading the papers today, for thinking that our MP's can't get by for a day without a tipple. Interesting point about possible restrictions on use. 

Other interesting and similar covenants I know of include an area of land off the A13 in Southend (yes I am an Essex girl!) where there are no pubs or restaurants owing to the land having been previously owned by the Society of Friends (Quakers to you and me). These odd provisions can catch you out if you're not careful.