Planning permission is an important part of any house or building works. This could be permission for a building to be built on a plot of land, or it could be an extension to an existing place. There are some circumstances where you may not need to to apply for planning permission and it is best to speak with the Residential Architects Notting Hill way like https://www.rbddesign.com/architectural-design/residential-architecture-london/architects-notting-hill/ that you use to design the plans for your home or extension.
There are a number of different applications that can be made from a planning perspective and it is important that you are aware of what forms you need to submit. Each planning application type will come with different costs and the information that you need to provide will also be different. This is another reason why it is important to work with professionals like the ones mentioned above as they will be aware of what the relevant planning requirements are.
Planning permission is essentially consent that a local authority gives for a proposed building. The local authority will assess what the impact will be on the local area as well as whether there are any conditions on the land that is being used. In the case of extensions they will consider the impact on the local neighbourhood and also whether there are any listings on the property.