Broxtowe Borough Council decides planning questions in Beeston, and its site at broxtowe.gov.uk shows what bears on any one street. Beeston has conservation areas. The West End conservation area takes in buildings along Dovecote Lane, Grange Avenue, West End and Church Street, and the St John's Grove Estate is also a conservation area. A house on or near those roads should have the road-facing slope checked with the council before a rooflight is drawn on it.
Further out, a house rooflight commonly sits within householder permitted development, though that comes with conditions. We do not repeat them here, because they are set out, with the government source, in our planning guide. Householder rights of that kind are not available to flats and maisonettes. Where a house is listed, consent must be obtained before the roof is touched. Only the council can say whether a particular street has lost its permitted development, so we put your address to them before the survey.
Planning is separate from Building Regulations. Building work is what a fresh roof opening amounts to. Broxtowe or a registered building control approver receives the notification from us, wherever the job is notifiable. A like-for-like swap is still governed by Part L. On figures, 2.2 W/m²K is the line for any rooflight, lantern or otherwise, and roof windows have a stricter 1.4.
Where the road-facing slope is the only route to the dark corner, the conservation pattern is worth a look: a slim frame, one central bar, and a profile that lies close to the slates. That is the unit we show first on any road where appearance counts.