Do I need planning permission?
Tell us about your home, the position and size of your proposed extension or conservatory. We’ll guide you towards the planning route to check.
FREE PLANNING & BUILDING REGULATIONS GUIDANCE
Planning an extension or conservatory?
Get free initial guidance on planning permission and building regulations before you take the next step. Check your extension or conservatory plans online and download your personal guide.
Get my free guide ↗Free · Around 5 minutes · No obligation
For extensions and conservatories attached to houses in England. An initial guide based on your answers.
KNOW WHAT COMES NEXT
Free guidance. Two important checks.
Do I need building regulations approval?
Your roof, heating and connection to the house all matter. We’ll help you understand which details need Building Control’s advice.
Make a more informed start.
Save your personal guide, then talk through the details with our team. Planning permission and building regulations are separate checks.
Local expertise.
Better together.
TWC and Permaframe are part of TWC Home Group. Two local brands, sharing knowledge and experience to help you make more of your home.
Start your free home check →A few things before you start.
Is this a council decision?
No. It is an initial guide based on your answers. Your final design, planning history and approval route need confirmation with the relevant professionals and council.
Which areas does this cover?
The automated rules cover houses in England. Homes elsewhere, flats and more complex proposals are directed for further checking.
What happens to my details?
TWC or Permaframe may call or email you to follow up on your enquiry, discuss your plans and help arrange a design consultation or quote. Your details and answers are encrypted before storage and available only to authorised staff.