action for nuisance is maintainable against the landlord of the
premises on which the nuisance exists provided:
- he has expressly or impliedly authorised the
create the nuisance Smith v Scott (1973) Ch314.
- if the
nuisance was on the premises before he let them and the landlord knew
of it or ought to have known of it.
- if the landlord reserved the right to repair
to repair the landlord is subject to the same liability as an occupier
as to those matters over which he has reserved the right or undertaken
the duty of repair.