Flat 3 17 Hyde Park Square London W2 2JR

This site has had 2 applications since 2026.

• 26/06425/LBC Awaiting decision

  Flat 3 17 Hyde Park Square London W2 2JR

  Installation of air conditioning including an external unit within an acoustic enclosure at fourth floor level; formation of a new dormer window to the rear mansard roof; window replacement; replacement of the roof to the first-floor annex & internal alterations. (Linked with 26/06424/FULL)

  Submitted 18 Sep 2026 Heritage and listed buildings

1. 18 Sep 2026

   Received by Westminster

2. 28 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 13 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 86 days over the applications it decided in the last year.

1 later application on the register refers to this one:

• 26/06425/LBC Awaiting decision

  Flat 3 17 Hyde Park Square London W2 2JR

  Installation of air conditioning including an external unit within an acoustic enclosure at fourth floor level; formation of a new dormer window to the rear mansard roof; window replacement; replacement of the roof to the first-floor annex & internal alterations. (Linked with 26/06424/FULL)

  Submitted 18 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 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.

• Flat 3 17 Hyde Park Square London W2 2JR

  26/06425/LBC Submitted 18 Sep 2026 50 yards away

  90% historically approved · decision due ~13 Nov

  Installation of air conditioning including an external unit within an acoustic enclosure at fourth floor level; formation of a new dormer window to the rear mansard roof; window replacement; replacement of the roof to the first-floor annex & internal alterations. (Linked with 26/06424/FULL)

  Awaiting decision Heritage and listed buildings Loft or dormer Windows or glazing

• Flat 4 13 Hyde Park Square London W2 2JP

  25/08164/FULL Submitted 10 Nov 2025 50 yards away

  Installation of double glazed windows to front and rear elevations at third floor level. Linked with 25/08165/LBC

  Refused Full applications Windows or glazing 35 docs

• Flat 4 13 Hyde Park Square London W2 2JP

  25/08165/LBC Submitted 10 Nov 2025 50 yards away

  Installation of double glazed windows to front and rear elevations at third floor level. Linked with 25/08164/FULL

  Refused Heritage and listed buildings Windows or glazing 12 docs

• Flat 4 13 Hyde Park Square London W2 2JP

  25/08161/LBC Submitted 7 Nov 2025 50 yards away

  Replacement of doors to compartmentalize the corridor as a means of escape; refurbishment of the apartment; relocation of existing radiators; reconfiguration of the existing bathroom; and associated works.

  Granted Heritage and listed buildings 17 docs

• Flat 4 13 Hyde Park Square London W2 2JP

  25/08124/LBC Submitted 7 Nov 2025 50 yards away

  Replacement of doors to create fire-rated compartments within the corridor as a means of escape; refurbishment of internal finishes; relocation of existing radiators; reconfiguration of the existing bathroom to create two separate facilities; window refurbishment.

  Withdrawn Heritage and listed buildings Windows or glazing 32 docs

• 35 Gloucester Square London W2 2TD

  25/06965/NMA Submitted 29 Sep 2025 100 yards away

  Amendments to planning permission dated 18 March 2025 (RN: 24/08548/FULL) for the: Erection of a rear extension at lower ground floor level including some excavation of the existing ground floor garden/terrace; full width rear extension at ground floor; re-alignment of ground floor front window; repositioning of rear lower ground-ground floor level access stair; new dormers and roof light, alterations to rear fenestration and balconies. NAMELY, to allow alteration to lower ground floor extension by squaring off south west corner, alteration to external staircase, widening portal to main house.

  Granted Amendments Extension Loft or dormer +1 10 docs

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications