Quick and easy solution for skylights on a flat roof With a VELUX Flat Roof Skylight designed to meet the growing demand for skylights in homes with flat or low-pitch roofs, you can transform and improve virtually any space with daylight.Click to see full answer. In this regard, do roof lights need planning permission?Planning Permission. You do not normally need to apply for planning permission to re-roof your house or to insert roof lights or skylights as the permitted development rules allow for roof alterations subject to the following limits and conditions. No alteration to be higher than the highest part of the roof.Also Know, do you need planning permission to put a Velux window in the roof? When it comes to inserting rooflights or skylights into your home, generally there isn’t a need to apply for planning permission as long as the following limits and conditions are met: Any windows installed must protrude no more than 150 millimetres above the existing roof plane. Besides, how do you make a skylight roof? Constructing the Skylight Remove all roofing where hole is to be cut. Cut hole in your roof the size of your window. Measure and cut 2-by-6-inch board and frame under edge of hole, making a casing for the window to set in. Measure and cut 1-by-2-inch boards to fit inside of casing flush with bottom and nail. Can Dormer be higher than roof?No part of the roof light, dormer or extension is higher than the highest part of the existing roof.