Loft conversion
Planning permission and building regulations
Do you need planning permission for a loft conversion?
Planning permission is not usually required for a loft conversion. However, if you are altering a roof space that exceeds set limits and conditions, permission will be required.
It is best to check with your local authority or refer to our interactive house and mini guide to find out the rules on permitted development concerning lofts.
Do you need building regulations approval for a loft conversion?
Building regulations approval will always be required to convert a loft into a liveable space.
Things to consider
You may find it helpful to use the following third-party commercial service to plan your home improvement project:
This link will take you to information about their services.
- https://www.planningportal.co.uk/permission/home-improvement/planning-consultancy-calculator
Useful links
Find a Professional
Use our partner directories from CIAT, FMB or RTPI to find an architectural technologist, builder or planning consultant to help with your project or development.
Find a professional (https://www.planningportal.co.uk/planning/planning-applications/find-a-trade-professional)
Find a professionalUseful links
Interactive guides (https://interactive.planningportal.co.uk/)
Interactive guidesCommon projects (https://www.planningportal.co.uk/permission/common-projects)
Common projectsMake an application (https://www.planningportal.co.uk/applications)
Make an applicationPlanning Consultancy Calculator (https://www.planningportal.co.uk/permission/home-improvement/planning-consultancy-calculator)
Planning Consultancy Calculator- https://www.planningportal.co.uk/permission/common-projects/loft-conversion/is-building-regulations-approval-needed-for-a-loft-conversion