Conservatory Planning Permission

Good news: most conservatories don't need planning permission

Under Permitted Development rights, you can build a conservatory without planning permission if it meets certain conditions.

Permitted Development Rules

  • • No more than 50% of garden area covered by extensions
  • • Single storey only
  • • Maximum height 4m (3m if within 2m of boundary)
  • • Does not extend beyond the rear wall by more than 3m (semi/terrace) or 4m (detached)
  • • Not in front of the house
  • • Materials similar to existing house

When You DO Need Permission

  • • Listed building - always needs consent
  • • Conservation area - restrictions apply
  • • Exceeds permitted development limits
  • • Flat or maisonette