Technically the answer is no but it does depend on size, local planning requirements, conservation area restrictions, location, and other factors including how it may affect your neighbours, usually the most important!
Most glass structures of any size will probably require planning permission or building regulation approval but as the glass room starts life as a simple glass roof structure it certainly sits in a grey area for planning applications.
We have seen recent examples of local authorities preferring the glass roof or room concept in conservation areas and approvals given when applied for on the basis the structure is so minimalist it does not detract from the building or surrounding area. Of course every local authority has their own view and although we cannot suggest you don’t ask for permission a chat with one of your local architects might be worth while if yu are in a conservation area or have a listed building.
The aluminium roof structure is bolted to your property and bolted to the ground and does not require and footings like a brick wall or extension would require. This means not only can the glass room be erected fairly quickly it does not technically require planning permission by definition.
We are happy to assist in any drawings or visuals for submission or for an appointed architect you may be working with to use. We ensure the building meets current planning regulations when required by the local authorities.
Our many years of experience in installing all kinds of roof structures onto domestic and commercial properties has given us the knowledge to help and recommend when required with particular attention to the building the structure may be attached to as most of the roof structures we install are not free standing as they are an extension of an existing building.
Some help may be obtained on planning consent from this link:
Also see here for some assistance on permitted development rights: