This section applies to the consent required by virtue of section 93(1)(b) (landlord's consent to subletting of part of dwelling-house).
Consent shall not be unreasonably withheld (and if unreasonably withheld shall be treated as given), and if a question arises whether the withholding of consent was unreasonable it is for the landlord to show that it was not.
In determining that question the following matters, if shown by the landlord, are among those to be taken into account—
Consent may be validly given notwithstanding that it follows, instead of preceding, the action requiring it.
Consent cannot be given subject to a condition (and it purporting to be given subject to a condition shall be treated as given unconditionally).
Where the tenant has applied in writing for consent, then—