49 - 51 Leinster Square London W2 4PU

This site has had 2 applications since 2026.

• 26/06220/LBC Awaiting decision

  49 - 51 Leinster Square London W2 4PU

  Alterations to rear basement area across all 3 buildings, including removal of existing rooflights and creation of 3 lightwells, basement elevation alterations and landscaping changes. Internal works (Linked to 26/06219/FULL)

  Submitted 10 Sep 2026 Heritage and listed buildings

1. 10 Sep 2026

   Received by Westminster

2. 21 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 5 November 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 66 days over the applications it decided in the last year.

• 26/06220/LBC Awaiting decision

  49 - 51 Leinster Square London W2 4PU

  Alterations to rear basement area across all 3 buildings, including removal of existing rooflights and creation of 3 lightwells, basement elevation alterations and landscaping changes. Internal works (Linked to 26/06219/FULL)

  Submitted 10 Sep 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 26/06220/LBC Awaiting decision

  49 - 51 Leinster Square London W2 4PU

  Alterations to rear basement area across all 3 buildings, including removal of existing rooflights and creation of 3 lightwells, basement elevation alterations and landscaping changes. Internal works (Linked to 26/06219/FULL)

  Submitted 10 Sep 2026 Heritage and listed buildings

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 91 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.

• Fourth Floor Flat 44 Leinster Square London W2 4PU

  26/04426/FULL Submitted 3 Jul 2026 50 yards away

  87% historically approved · decision due ~3 Sep

  Installation of railings and retention of timber decking in association with use of roof terrace (part retrospective) [Linked to 26/04427/LBC]

  Decided Full applications 25 docs

• Fourth Floor Flat 44 Leinster Square London W2 4PU

  26/04427/LBC Submitted 3 Jul 2026 50 yards away

  90% historically approved · decision due ~3 Sep

  Installation of railings and retention of timber decking in association with use of roof terrace (part retrospective) [Linked to 26/04426/FULL]

  Decided Heritage and listed buildings 25 docs

• 49 - 51 Leinster Square London W2 4PU

  26/06220/LBC Submitted 10 Sep 2026 50 yards away

  90% historically approved · decision due ~5 Nov

  Alterations to rear basement area across all 3 buildings, including removal of existing rooflights and creation of 3 lightwells, basement elevation alterations and landscaping changes. Internal works (Linked to 26/06219/FULL)

  Awaiting decision Heritage and listed buildings Loft or dormer

• Flat 7 42 Leinster Square London W2 4PU

  26/03450/LBC Submitted 26 May 2026 50 yards away

  90% historically approved · decision due ~26 Jul

  Retrospective application for alterations to top floor flat including removal of ceiling in reception room and bedroom; installation of mezzanine to bedroom; creation of escape dormer in roof space; insertion of rooflights and associated works.

  Awaiting decision Heritage and listed buildings Loft or dormer 29 docs

• Flat 4 52 - 53 Leinster Square London W2 4PU

  25/08114/LBC Submitted 6 Nov 2025 50 yards away

  90% historically approved · decision due ~1 Jan

  Internal alterations to reconfigure the layout of the second floor flat including the addition of 1no. bedroom and relocation of the kitchen including upgrades to existing lighting and small power.

  Awaiting decision Heritage and listed buildings 15 docs

• 63 Prince's Square London W2 4PX

  25/07611/CLEUD Submitted 21 Oct 2025 50 yards away

  Use of 63 Princes Square as a hostel providing visitor accommodation (tourist accommodation).

  Granted Lawful development 18 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06287/FULL Awaiting decision

  Barness Court 6 - 8 Westbourne Terrace London W2 3UW

  Installation of a new riser as per GW10 design comprising a single riser with 7 entries and 9 Taylor valves to be installed. (Linked with 26/06288/LBC)

  Received 14 Sep, published by the council 21 Sep 2026 Full applications
• 26/06278/FULL Awaiting decision

  40 Wellington Road London NW8 9TJ

  Installation of a new external access ramp/slope to provide accessibility to the Barclays bank ATM.

  Received 14 Sep, published by the council 21 Sep 2026 Full applications
• 26/06269/FULL Awaiting decision

  Maisonette Basement And Ground Floor 101 Hereford Road London W2 5BB

  Amalgamation of existing lower ground and ground floor maisonette with the first floor flat to create a single dwelling and associated internal works including creation of a staircase. (Linked with 26/06270/LBC)

  Received 14 Sep, published by the council 21 Sep 2026 Full applications