BEFORE INSTALLATION / ENGLAND

Do I need
planning permission?

It depends on your property and the exact project. A product name alone does not determine whether permission is needed.

Check the proposed structure.

Some qualifying outbuildings benefit from permitted development, subject to limits on height, position, coverage and use. Planning Portal explicitly excludes verandas, balconies and raised platforms from the outbuilding allowance. You cannot assume every pergola, veranda or glazed enclosure is exempt.

Attached structures, enclosed outdoor rooms, listed properties and locations with restrictions need particular attention. Obtain advice from your local planning authority before committing to work.

What to take to the planning authority

• Product drawings and overall dimensions.
• Distance from boundaries and position relative to the house.
• Whether it is attached, freestanding or enclosed with glass.
• Roof design, ground levels and intended use.
• Any listed status or local planning restrictions.

Government guidance explains that a lawful development certificate can confirm whether a proposal is lawful without a planning application. Permitted development does not remove separate building regulations or other consent requirements.

Official guidance

Planning Portal: outbuildings
GOV.UK: householder permitted development

Introductory guidance for England, checked 12 October 2026. Your local authority or a qualified planning adviser should confirm the requirements for your project.