In this article, we're going to explain everything, from your permitted development rights and planning permission, to building regulations and approval from your local authority.
Permitted development rules outline what alterations you can make to your property without seeking planning permission.
You can install or replace roof windows under permitted development subject to the following conditions:
However, you will always need planning permission for skylights or roof windows if you’re a leaseholder or you live in a building where your local authority has made an Article 4 Direction, removing your permitted development rights.
This is normally done in protected and conservation areas where the character of the area could be negatively impacted. If you are unsure whether this affects you, please contact your local planning authority.
If you do have to seek planning permission for windows, you can do this online.
It’s worth noting that, if you do live in a conservation area, there are certain kinds of roof windows that are more likely to be accepted by your planning authority due to their decreased visual impact. These are known as conservation windows and are designed to look more traditional and in-keeping with both slate and tiled roofs, making them less likely to affect the character of an area.
Whether you need planning permission to install your new roof windows or not, you must still follow any relevant building regulations outlined in the Planning Portal, and seek building regulations approval for any work you have carried out.
By law, all modifications to buildings must comply with these regulations, which highlight the minimum legal standards for design and safety. Of particular importance with regards to roof windows are section J and section L of the building regulations, which deal with energy efficiency, thermal insulation, and protection against fire.
Adding new or altering existing roof windows can undermine the integrity of the building, so special care must be taken to ensure that the roof continues to perform as it should and meet all building regulations requirements. This is because:
Please note: If the work is being carried out by a professional tradesperson who is registered with a competent person scheme, they can self-certify that any works meet the building regulation standards themselves. If you would like your roof windows to be installed without any hassle, we recommend hiring a professional team with years of experience to carry out the work for you.
Here at Roof Windows 4 You, we specialise in providing roof windows, flashings, and blinds to tradespeople and DIYers. With a huge range of styles to suit your home or property and a great selection of features with bespoke options available, we're sure to have what you need.
If you're installing roof windows as part of a loft conversion project, take a look at our guide to planning permission for loft conversions for more advice.
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