364. Meaning of 'party wall' at common law.

The term 'party wall' may be used in a number of different senses1. At common law, the term may now be used in relation to: (1) a wall which belongs entirely to one of the adjoining owners, but is subject to an easement or right in the other to have it maintained as a dividing wall between the two adjoining properties2; (2) a wall divided vertically into two strips, one belonging to each of the adjoining owners3; (3) a wall divided vertically into halves, each half being subject to a cross easement in favour of the owner of the