We often get asked if you can put a glass extension on a listed building and the answer not a straightforward yes or no. If you follow the process below you will have the best chance of being granted permission.
Listed building consent
Listed building consent is a type of planning control which protects buildings that are of special architectural or historic interest, and are in addition to any planning regulations. It is a criminal offence to carry out work which needs listed building consent without obtaining it beforehand.
Listed building consent must be applied for if you want to alter or extend a listed building in a way that will affect the character or appearance of the building. You must apply for listed building consent via your local planning authority. The local authority will then need to the appropriate planning division. For example, if your building is in Wales the local authority would need to apply to the planning division of the Welsh Government for consent. The majority of applications are processed within four weeks and returned to the appropriate local planning authority.
The whole process should take between eight to thirteen weeks which also includes a statutory 21-day consultation period where neighbours and any other interested relevant parties will be consulted.
If you are refused consent you have six months in which you can appeal to the secretary of state for communities and local government (DCLG). It is often advisable to employ the services of a good consultant who will have a full understanding of the planning law and will often have more knowledge than the Conservation officer.
If you get consent you still need to follow planning regulations to ensure your glass extension meets building regulations.
In order to get the best chance of your glass extension getting approval it should use a cohesive design which fits in with the character of the building. You can also use low iron glass which is a clearer glass then conversional glass and makes the glass much more transparent. In specialist cases it is also possible to have the glass coated with a non-reflective substance which can make the glass nearly invisible to passers-by.
We work with experienced architects who can help you plan an innovative extension that will meet and hopefully exceed your needs, while being inline with planning constraints.