Subject to regulations 13(5)(a) and 14(3), where a superior landlord is served with copies of a tenant's request and a landlord's initial response, or a landlord's full response, in accordance with regulation 12(5), the superior landlord must not unreasonably refuse consent to the making of a relevant energy efficiency improvement falling within regulation 12(4).
A superior landlord's refusal of consent is not unreasonable where—
This paragraph applies where—
This paragraph applies where the relevant energy efficiency improvement falls within any of paragraphs (d), (n) or (v) of the Schedule to the Green Deal (Qualifying Energy Improvements) Order 2012, and the landlord, or the superior landlord, has obtained a written opinion described in regulation 10(4).
A superior landlord must, no later than six weeks after the date of service on the superior landlord of a copy of the landlord's initial response or, where the landlord's initial response states that the landlord intends to serve a counter proposal, no later than six weeks after the date of service of the landlord's intended counter proposal, serve a notice (a "superior landlord's response") on the landlord—