Flat 10 2 Mansfield Street London W1G 9NF

This site has had 2 applications since 2026.

• 26/01152/LBC Awaiting decision

  Flat 10 2 Mansfield Street London W1G 9NF

  Re-location of previously approved external air conditioning unit at roof level. Linked with 26/01151/FULL

  Submitted 24 Feb 2026 Heritage and listed buildings

1. 24 Feb 2026

   Received by Westminster

2. 13 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 8 June 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.

• 26/01152/LBC Awaiting decision

  Flat 10 2 Mansfield Street London W1G 9NF

  Re-location of previously approved external air conditioning unit at roof level. Linked with 26/01151/FULL

  Submitted 24 Feb 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 26/01152/LBC Awaiting decision

  Flat 10 2 Mansfield Street London W1G 9NF

  Re-location of previously approved external air conditioning unit at roof level. Linked with 26/01151/FULL

  Submitted 24 Feb 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.

• Flat 10 2 Mansfield Street London W1G 9NF

  26/01152/LBC Submitted 24 Feb 2026 50 yards away

  90% historically approved · decision due ~8 Jun

  Re-location of previously approved external air conditioning unit at roof level. Linked with 26/01151/FULL

  Awaiting decision Heritage and listed buildings 14 docs

• Flat 49 2 Mansfield Street London W1G 9NF

  26/01207/LBC Submitted 25 Feb 2026 50 yards away

  90% historically approved · decision due ~29 Jul

  Replacement of seven windows.

  Awaiting decision Heritage and listed buildings Windows or glazing 15 docs

• 4 Queen Anne Street London W1G 9LQ

  25/07282/FULL Submitted 8 Oct 2025 50 yards away

  Variaiton of Conditon 1 of planning permission dated 18 November 2024 (RN: 24/05063/FULL) for, 'Installation of two air conditioning units at main roof level with associated pipework on the rear elevation, installation of two grilles on the rear wall in the lightwell at lower ground floor level and internal alterations at lower ground and ground floor levels'; Namely, to amend the location of the two items of plant on the roof in addition to amending the specification of the anti-vibration mounts. (Linked with 25/07252/LBC) (Application under Section 73 of the Act).

  Granted Full applications 26 docs

• 4 Queen Anne Street London W1G 9LQ

  25/07255/FULL Submitted 7 Oct 2025 50 yards away

  Variation of Condition 1 of planning permission dated 22nd November 2024 (RN: 24/05074/FULL) for, 'Installation of one air conditioning unit at main roof level and two grilles within the window in the rear lightwell at ground floor level with associated pipework and internal alterations'; Namely, to allow for repositioning of the plant unit on the roof in addition to providing new higher performance anti-vibration mounts. (Linked with 25/07251/LBC) (Application under Section 73 of the Act).

  Granted Full applications Windows or glazing 29 docs

• 4 Queen Anne Street London W1G 9LQ

  25/07251/LBC Submitted 7 Oct 2025 50 yards away

  Installation of one air conditioning unit at main roof level and two grilles within the window in the rear lightwell at ground floor level with associated pipework and internal alterations. (Linked with 25/07255/FULL)

  Granted Heritage and listed buildings Windows or glazing 24 docs

• 4 Queen Anne Street London W1G 9LQ

  25/07252/LBC Submitted 7 Oct 2025 50 yards away

  Installation of two air conditioning units at main roof level with associated pipework on the rear elevation, installation of two grilles on the rear wall in the lightwell at lower ground floor level and internal alterations at lower ground and ground floor levels. (Linked with 25/07282/FULL)

  Granted Heritage and listed buildings 22 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront with Medication Dispensing Outlet.

  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 replacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06294/FULL Awaiting decision

  15 Eaton Mews South London SW1W 9HP

  Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06273/FULL Awaiting decision

  9A Grosvenor Square London W1K 5AE

  Installation of new natural Portland Stone step surfaces to the two highway facing front entrance doors. (Linked to 26/05473/LBC)

  Received 14 Sep, published by the council 22 Sep 2026 Full applications
• 26/06277/FULL Awaiting decision

  Hospital 60 Grove End Road London NW8 9NH

  Variation of conditions 1 and removal of condition 6 of planning permission dated 12th November 2019 (RN 19/07202/FULL) for the Variation of condition 12 of planning permission dated 21 June 2013 (RN: 13/01330/FULL) for the: Demolition of single storey block to north east elevation of main hospital building. Erection of three storey building (plus basement level) with link to existing hospital fronting onto Grove End Road and erection of two storey extension to the main entrance building, both to provide additional hospital accommodation (Class D1). Installation of mechanical plant and associated external alterations. NAMELY, to include amended phase 2 drawings and condition 6 to be removed as the as approved 11 car parking space are no longer proposed and the car lift is no longer shown on the amended plans.

  Received 14 Sep, published by the council 22 Sep 2026 Full applications