By Borough
Planning Permission by London Council
Borough-by-borough guidance on planning permission — local conservation areas, Article 4 directions and validation quirks for each council.
Ealing
London Borough of EalingWandsworth
London Borough of WandsworthBromley
London Borough of BromleyBarnet
London Borough of BarnetHarrow
London Borough of HarrowRichmond
London Borough of Richmond upon ThamesCamden
London Borough of CamdenIslington
London Borough of IslingtonLambeth
London Borough of LambethSouthwark
London Borough of SouthwarkWaltham Forest
London Borough of Waltham ForestHackney
London Borough of HackneyHaringey
London Borough of HaringeyHammersmith & Fulham
London Borough of Hammersmith & FulhamKensington & Chelsea
Royal Borough of Kensington and ChelseaWestminster
Westminster City CouncilGreenwich
Royal Borough of GreenwichLewisham
London Borough of LewishamCroydon
Croydon CouncilRedbridge
London Borough of RedbridgeEnfield
London Borough of EnfieldHounslow
London Borough of HounslowKingston
Royal Borough of Kingston upon ThamesMerton
London Borough of MertonSutton
London Borough of SuttonBrent
London Borough of BrentNewham
London Borough of NewhamTower Hamlets
London Borough of Tower HamletsHavering
London Borough of HaveringBexley
London Borough of BexleyHillingdon
London Borough of HillingdonBarking & Dagenham
London Borough of Barking and DagenhamCity of London
City of London Corporation
London Borough of EalingWandsworth
London Borough of WandsworthBromley
London Borough of BromleyBarnet
London Borough of BarnetHarrow
London Borough of HarrowRichmond
London Borough of Richmond upon ThamesCamden
London Borough of CamdenIslington
London Borough of IslingtonLambeth
London Borough of LambethSouthwark
London Borough of SouthwarkWaltham Forest
London Borough of Waltham ForestHackney
London Borough of HackneyHaringey
London Borough of HaringeyHammersmith & Fulham
London Borough of Hammersmith & FulhamKensington & Chelsea
Royal Borough of Kensington and ChelseaWestminster
Westminster City CouncilGreenwich
Royal Borough of GreenwichLewisham
London Borough of LewishamCroydon
Croydon CouncilRedbridge
London Borough of RedbridgeEnfield
London Borough of EnfieldHounslow
London Borough of HounslowKingston
Royal Borough of Kingston upon ThamesMerton
London Borough of MertonSutton
London Borough of SuttonBrent
London Borough of BrentNewham
London Borough of NewhamTower Hamlets
London Borough of Tower HamletsHavering
London Borough of HaveringBexley
London Borough of BexleyHillingdon
London Borough of HillingdonBarking & Dagenham
London Borough of Barking and DagenhamCity of London
City of London Corporation
Planning Permission guides that apply in every borough
These are the same in all 33 councils, so they are worth reading once rather than borough by borough.
How Much Do Planning Drawings Cost in London? (2026)Loft Conversion Cost in London (2026 Guide)How Much Does a House Extension Cost in London? (2026)Permitted Development in London, Decoded (2026)Do I Need Planning Permission for a Loft Conversion in London? (2026)Do I Need Planning Permission for a Rear Extension in London? (2026)Do I Need Planning Permission for a Garage Conversion in London? (2026)Do I Need Planning Permission for a Side Return Extension in London? (2026)Do I Need Planning Permission for a Basement Conversion in London? (2026)Do I Need Planning Permission for a Two-Storey Extension in London? (2026)Do I Need a Lawful Development Certificate in London? (2026)Do I Need Planning Permission for a Change of Use in London? (2026)Do I Need Planning Permission for an HMO in London? (2026)Do I Need Planning Permission for a Garden Room in London? (2026)Do I Need Planning Permission for a Driveway in London? (2026)Do I Need Planning Permission for Solar Panels in London? (2026)How Long Does Planning Permission Take in London? (2026)What Happens If You Build Without Planning Permission in London? (2026)Do I Need Planning Permission to Convert a House into Flats in London? (2026)Do I Need Planning Permission for a Fence or Wall in London? (2026)How Long Does a Loft Conversion Take in London? The Full TimelineHow to Get Planning Permission in London: A Step-by-Step GuideMansard Loft Conversion Cost London: A 2026 Price GuideConservation Area Extension Rules in London (2026)Article 4 Directions in London, Explained (2026)Basement Conversion Planning Permission in London (2026)Two-Storey Side Extension Planning Permission in London (2026)New Build House Planning Permission in London (2026 Guide)The Planning Appeal Process in London After a Refusal (2026)Larger Home Extension Prior Approval in London (2026 Guide)Listed Building Consent in London: The Complete 2026 GuideHow to Discharge Planning Conditions in London (2026 Guide)Community Infrastructure Levy in London: The Complete 2026 GuideRetrospective Planning Permission in London: How It Works (2026)Tree Preservation Orders and Planning in London: What Protected Trees Mean for Your ExtensionWhat Is a Design and Access Statement? A London Homeowner's GuidePlanning Enforcement in London: What Happens If You Build Without Permission