Planning Permission in London: Extensions, Loft Conversions, and Renovations
One of the most searched renovation questions is “Do I need planning permission?”. The answer depends on the type of work, the property, and where you live in London. This guide breaks down the difference between planning permission and building regulations, explains what “permitted development” can cover, and highlights common triggers for approval such as rear extensions, loft conversions, structural alterations, and changes to the external appearance. We also cover key London-specific checks, including conservation areas, listed buildings, and flats (which often have different rules), plus what drawings and supporting information are typically needed before you submit anything. If you want to avoid delays, we’ll show you how to plan your timeline properly, when to speak to your local council, and how to keep your renovation moving with the right paperwork in place from the start.




