(1)This section applies where a rent is registered for a dwelling-house subject to a statutory tenancy.
(2)If the rent payable for any period of the statutory tenancy beginning on or after the date of registration would be less than the registered rent, it may be increased up to the amount of that rent by a notice of increase served by the landlord on the tenant.
(3)The notice shall specify the amount of the registered rent, and the date from which the notice is to take effect, which shall not be earlier than four weeks before service of the notice, and not at a time when an agreement under section 11 of this Act is in force.
(4)If the notice takes effect from the termination of an agreement under section 11 of this Act, it shall state that fact, and specify the rent payable, or last payable, under that agreement.
(5)If a notice is served under this section at a time when an agreement under section 11 of this Act is in force, and the date stated in the notice as that from which it is to take effect is—
(a)a date after service of the notice, and
(b)a date as at which the landlord could by notice served with the first-mentioned notice terminate the agreement,
the first-mentioned notice shall operate as a notice to terminate the agreement as at that date.