Site At 1 - 15 Portsea Mews London W2 2BN

This site has had 4 applications since 2026: 2 approved, 0 refused.

• 26/03502/CLOPUD Awaiting decision

  Site At 1 - 15 Portsea Mews London W2 2BN

  Confirmation that the proposed works to the Site would be considered lawful under Section 55 of the Town and Country Planning Act if undertaken, and on completion of the proposed works, would lawfully implement the planning permission dated 29 June 2023 referenced 22/06901/FULL under Section 56 of the Town and Country Planning Act.

  Submitted 28 May 2026 Lawful development
• 26/01228/ADFULL Granted

  Site At 1 - 15 Portsea Mews London W2 2BN

  Details of signed appendix A checklist and Construction Management plan pursuant to condition 3 of planning permission dated 2 December 2024 (RN: 24/05595/FULL ).

  Decided 7 May 2026 Full applications
• 26/01085/ADFULL Granted

  Site At 1 - 15 Portsea Mews London W2 2BN

  Details of conservation strategy pursuant to Condition 24 of planning permission dated 2 December 2024 (RN: 24/05595/FULL ).

  Decided 1 Apr 2026 Full applications

1. 30 Mar 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 25 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 91 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 119 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Site At 1 - 15 Portsea Mews London W2 2BN

  26/01085/ADFULL Submitted 20 Feb 2026 50 yards away

  Details of conservation strategy pursuant to Condition 24 of planning permission dated 2 December 2024 (RN: 24/05595/FULL ).

  Granted Full applications 8 docs

• Site At 1 - 15 Portsea Mews London W2 2BN

  26/01228/ADFULL Submitted 26 Feb 2026 50 yards away

  Details of signed appendix A checklist and Construction Management plan pursuant to condition 3 of planning permission dated 2 December 2024 (RN: 24/05595/FULL ).

  Granted Full applications 10 docs

• Site At 1 - 15 Portsea Mews London W2 2BN

  26/03502/CLOPUD Submitted 28 May 2026 50 yards away

  84% historically approved · decision due ~23 Jul

  Confirmation that the proposed works to the Site would be considered lawful under Section 55 of the Town and Country Planning Act if undertaken, and on completion of the proposed works, would lawfully implement the planning permission dated 29 June 2023 referenced 22/06901/FULL under Section 56 of the Town and Country Planning Act.

  Awaiting decision Lawful development 7 docs

• 10 Connaught Street London W2 2AH

  11/03979/FULL Submitted 26 Apr 2011 50 yards away

  Demolition of non-original rear kitchen extension and reinstatement of rear lightwell at lower ground floor level, installation of boiler enclosure in rear lightwell, replacement of windows to rear elevation and associated external alterations.

  Granted Full applications Extension Demolition +1 11 docs

• 8 Connaught Street London W2 2AH

  07/06143/FULL Submitted 12 Jul 2007 50 yards away

  Infill below entrance steps, replacement of existing UPVC rear conservatory at first floor level, alterations to existing rear balcony and additional velux to roof.

  Granted Full applications Extension Loft or dormer 13 docs

• 8 Connaught Street London W2 2AH

  07/06148/LBC Submitted 12 Jul 2007 50 yards away

  Infill below entrance steps, replacement of existing UPVC rear conservatory at first floor level, alterations to existing rear balcony, additional velux to roof and internal alterations.

  Granted Heritage and listed buildings Extension Loft or dormer 8 docs

• 26/07528/FULL Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

  Received 5 Nov, published by the council 6 Nov 2026 Full applications
• 26/05200/FULL Decided

  1 The Court House 165 Seymour Place London W1H 4PU

  Installation of waterproofing system to the existing lead flat roofs

  Received 3 Aug, published by the council 28 Aug 2026 Full applications
• 26/07521/FULL Awaiting decision

  Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

  Installation of one external condenser unit

  Received 4 Nov, published by the council 6 Nov 2026 Full applications
• 26/07508/FULL Awaiting decision

  Buckingham Palace The Mall London SW1A 1AA

  Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

  Received 4 Nov, published by the council 5 Nov 2026 Full applications
• 26/07472/FULL Awaiting decision

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

  Received 3 Nov, published by the council 6 Nov 2026 Full applications