Browse planning permission guidance for house extension projects across Greater London.
Select a local planning authority below to view permitted development limits, planning considerations and council planning guidance.
Planning permission guidance for house extension projects in Barking and Dagenham.
Planning permission guidance for house extension projects in Barnet.
Planning permission guidance for house extension projects in Bexley.
Planning permission guidance for house extension projects in Brent.
Planning permission guidance for house extension projects in Bromley.
Planning permission guidance for house extension projects in Camden.
Planning permission guidance for house extension projects in City of London.
Planning permission guidance for house extension projects in Croydon.
Planning permission guidance for house extension projects in Ealing.
Planning permission guidance for house extension projects in Enfield.
Planning permission guidance for house extension projects in Greenwich.
Planning permission guidance for house extension projects in Hackney.
Planning permission guidance for house extension projects in Hammersmith and Fulham.
Planning permission guidance for house extension projects in Haringey.
Planning permission guidance for house extension projects in Harrow.
Planning permission guidance for house extension projects in Havering.
Planning permission guidance for house extension projects in Hillingdon.
Planning permission guidance for house extension projects in Hounslow.
Planning permission guidance for house extension projects in Islington.
Planning permission guidance for house extension projects in Kensington and Chelsea.
Planning permission guidance for house extension projects in Kingston upon Thames.
Planning permission guidance for house extension projects in Lambeth.
Planning permission guidance for house extension projects in Lewisham.
Planning permission guidance for house extension projects in Merton.
Planning permission guidance for house extension projects in Newham.
Planning permission guidance for house extension projects in Redbridge.
Planning permission guidance for house extension projects in Richmond upon Thames.
Planning permission guidance for house extension projects in Southwark.
Planning permission guidance for house extension projects in Sutton.
Planning permission guidance for house extension projects in Tower Hamlets.
Planning permission guidance for house extension projects in Waltham Forest.
Planning permission guidance for house extension projects in Wandsworth.
Planning permission guidance for house extension projects in Westminster.
Planning permission rules affecting house extension developments may vary depending on design, location and council planning policies.
National permitted development rules set limits on height, size and location of many types of home improvement projects.
Last updated March 2026