Who has to agree before a rooflight goes into the roof of a flat?
In a house, the roof is usually yours. In a flat, it is often part of the building as a whole, and the lease sets out who owns it and what you may change. A rooflight is a hole in the roof, so it is a change the owner of the roof will want to approve.
Ask before you design
Start with the lease and the people who manage the block. If your flat is on the top floor, with a flat roof over your own rooms, the owner may be willing to agree in writing, with conditions about who does the work and who looks after the roof afterwards. Our survey can describe the job clearly enough for that conversation, but we cannot give consent on the owner's behalf.
What the owner will ask
Expect questions about the roof covering, the guarantee on the roof and who is responsible for leaks around the new unit. The page on fitting into an existing flat roof shows what is involved, including how the roof is dressed around the upstand.
Planning and regulations
Flats have no householder permitted development rights, so putting a rooflight into a flat means a planning application, as the planning guide explains. The Building Regulations still apply to the work, and where it is notifiable we deal with the notification.
Daily use
Think about the room before the product. A living room that gets the sun may want solar control glass or a blind. In a bathroom, think about who will open the window and how often, because steam is a daily thing. And the question of who cleans the glass is a real one, because a block roof may not be somewhere residents can go.
Before the survey
Read the lease and speak to the roof's owner first. A rooflight nobody has agreed to is a rooflight that cannot go in.





