1172. Value limits where tenancy entered into before 1 April 1990.

If the tenancy1 is a long tenancy2 at a low rent3 and was entered into before 1 April 1990 or on or after 1 April 1990 in pursuance of a contract made before that date, and the house4 and premises5 had a rateable value6 at the date of commencement of the tenancy or else at any time before 1 April 1990, the tenancy is one to which the right to acquire an extended lease7 applies if the rateable value of the house and premises on the appropriate day8 was not more than £200 or, if it is Greater London9,