Your roof dormer cost will depend on a lot of different factors. One of the biggest of these is the type and style of dormer that you choose. Below is a look at the different types of dormer you might consider for your renovation project. For all the best tradesmen and loft conversion experts, Bristol Builders Network has got it covered.
Roof Dormer Cost: Types of Dormer
A dormer extension can be as simple as the addition of a small window to as complex as a large extension. The windows will be vertical and set into and projecting from a gable roof. The frame of the dormer will span the width between the supporting rafters. For a dormer window to look attractive it needs to be sympathetically designed. An extension will compose longer roof extensions. If you choose this option a steam beam known in the trade as a RSJ will be used to support the roof section of the dormer.
The style of your dormer will depend on:
- Where the dormer faces ( front, rear, or side)
- The size of room you need
- The existing shape of your roof
- Your budget
Dormer Designs
Your dormer roof cost will depend on the design of your extension. A basic flat roof, boxed shaped dormer is the cheapest design. Known as the Didsbury dormer, this design is cheaper than a sloping room Ramsbottom Velux dormer or a pedimented gable end. Dormer designs significantly increase your usable floor space and the general feeling of space in your conversion.
Planning Permission
In general you do not need planning permission for a dormer. Dormer conversions come under Permitted development rights that were introduced in 2008. Dormers are allowed without planning permission if their meet specified limited on size, etc. Planning permission would be required if you live in a listed builder or area that is listed for its natural beauty. It is however unlikely that you would be considering a dormer extension on a Grade II Building!
Some of the rules and regulations that you will find on dormers are that they should not exceed the original roof height of your home and that they cannot face the street. If your dormer is allowed to face the street, then it must be in keeping with your house and street. Verandahs and raised platforms are not allowed without planning permission.
Average Roof Dormer Cost
It is impossible to give a price for your dormer, as all prices vary. An approximate price for a 4 metre wide dormer is 4 thousand pounds. For a dormer that is twice this wide, the price will double accordingly. For the best prices on your roof dormer extension, allow Bristol Builders Network to find the best tradesmen with the most competitive prices. To ensure you keep to budget, ensure that you use a tradesman who can complete all the required work. Your prices will start spiraling out of control when you need a builder, a plumber, a plasterer, an electrician, and a decorator!