790. Case 12: residence acquired for retirement.

Where the landlord1 ('the owner') intends to occupy the dwelling house as his residence at such time as he might retire from regular employment and has let2 it on a regulated tenancy3 before he has so retired, and:

  1.  

    (1)     not later than the relevant date4 the landlord has given notice in writing to the tenant5 that possession might be recovered under this Case6;

  2.  

    (2)     the dwelling house has not, since 14 August 1974, been let by the owner on a protected tenancy7 with respect to which the condition mentioned in head (1) above was not satisfied8; and

  3.  

    (3)     the