Before you start any work you must make sure you.
Pitched roof extension planning permission.
Depending on why you want to replaces your roof also means that you have to comply with different rules.
Pitched roof extensions afford a more traditional look and that means they blend in better with the style of many houses.
If you are wanting to knock down a rebuild or build a huge extension then yes you will need need permission from your local authority before you begin.
However when carrying out larger structural alterations this may be a little more difficult.
You could apply for a planning easement as you have a existing roof.
Always contact your local planning authority to be sure.
If your house has been extended before the floor area of the extension you are now proposing and the floor area of any previous extension including those for which you previously got planning permission must not exceed 40 square metres.
This is a factor that planning departments tend to look on favourably.
Roof pitch must match existing house as far as practicable note that this also applies to any upper storey built on an existing extension.
A low pitched roof should be easy enough to gain planning permission for.
There are also other height restrictions.
For instance if you are planning on increasing the amount of space within your home you must also adhere to the rules regarding loft conversions.
When converting your flat roof into a pitched roof that s when planning permission may come into play.
But there are numerous smaller improvements that you may be surprised to learn can be undertaken without planning permission.
Pros of a pitched roof extension.
The boundary will be clearly shown on your deed plan.
It is a planning rule you cannot have the roof more than 2 5 m.
If within 2m of the boundaries if the building is under 30m2 you will not require any building control approval.
Converting your flat roof to a pitched roof does require planning permission as any alteration that is higher than the highest part of the existing roof requires approval.
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.
Any alteration to project no more than 150 millimetres from the existing roof plane.
And non opening unless the openable part is more than 1 7 metres above the floor.
Pitched roof extensions typically cost more simply because they involve more work and take longer to complete.
In my opinion this means that no part of the extension should be visible to the side facing the front.
Projects such as installing rooflights converting your garage changing your cladding or adding a conservatory can all be completed with implied consent known as permitted development pd.