Underground Car Park Cavendish Square London W1G 0PG

This site has had 3 applications since 2026: 1 approved, 0 refused.

• 26/05731/ADFULL Awaiting decision

  Underground Car Park Cavendish Square London W1G 0PG

  Details of Site Environmental Management Plan pursuant to condition 3 of planning permission dated 24 May 2022 (RN: 19/08460/FULL).

  Submitted 21 Aug 2026
• 26/05469/NMA Decided

  Underground Car Park Cavendish Square London W1G 0PG

  Amendments to planning permission dated 24th May 2022 (RN:19/08460/FULL) for Demolition and erection of above ground structures in conjunction with the use of an underground car park (Sui Generis) as a flexible mixed use commercial development comprising uses within the following use classes A1-A5, B1,B2, B8, C1, C2, D1, and D2 along with the excavation of a 4th basement level, new entrances and associated landscaping and highways works to provide up to 25,953 sqm (GIA) of floorspace. Namely, a series of updated drawings relating to the southern entrance, gardeners pavilion, northeast pavilion, and the extent of pavement lights and grilles.

  Submitted 12 Aug 2026 Amendments

1. 21 Apr 2026

   Received by Westminster

2. 1 May 2026

   Decision issued: Application Permitted

3. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 1 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 20 - 21 Cavendish Square London W1G 0RN

  26/03510/LBC Submitted 28 May 2026 50 yards away

  90% historically approved · decision due ~23 Jul

  Installation of replacement roof top plant with a dummy mansard roof extension, replacement plant at ground floor and new third floor roof structure and new substation at the lower ground floor. [Linked to 26/03509/FULL]

  Awaiting decision Heritage and listed buildings Extension Loft or dormer +1 27 docs

• Market Hall West End 9 Holles Street London W1G 0BD

  25/07919/ADV Submitted 31 Oct 2025 100 yards away

  84% historically approved · decision due ~26 Dec

  High Level Illuminated Fascia Signage to Cavendish Square Elevation & 2no A Boards to the Holles Street Paved Entrance

  Awaiting decision Advertising 6 docs

• 3 Cavendish Square London W1G 0LB

  25/08061/LBC Submitted 5 Nov 2025 100 yards away

  90% historically approved · decision due ~31 Dec

  Internal fitout works to return a CAT B space back to a CAT A space as part of the landlord's dilapidation works.

  Awaiting decision Heritage and listed buildings 9 docs

• Third Floor 3 Cavendish Square London W1G 0LB

  25/05783/LBC Submitted 15 Aug 2025 100 yards away

  Fit out works to the third floor

  Granted Heritage and listed buildings 22 docs

• Flanders House 1A Cavendish Square London W1G 0PH

  26/04900/LBC Submitted 22 Jul 2026 100 yards away

  90% historically approved · decision due ~16 Sep

  Maintenance and repair works to the external elevations of the building including ironwork and windows.

  Decided Heritage and listed buildings Windows or glazing

• 3 Cavendish Square London W1G 0LB

  26/05556/LBC Submitted 14 Aug 2026 100 yards away

  90% historically approved · decision due ~9 Oct

  Internal fit out of office space on the fourth and fifth floor level.

  Awaiting decision Heritage and listed buildings

• 26/06232/NMA Awaiting decision

  37 Trevor Place London SW7 1LE

  Amendments to planning permission dated 17th July 2026 (RN 26/03030/FULL) for the Alterations including enlargement of louvres and installation of new plant in basement; landscaping of roof terrace; second floor windows replaced with door sets; partial demolition at ground and first floor levels to create new lightwell and landscaped courtyard. NAMELY, addition of a free-standing sauna to the second-floor roof terrace.

  Received 11 Sep, published by the council 21 Sep 2026 Amendments
• 26/06256/NMA Awaiting decision

  Queens Court Queensway London W2 4QN

  Amendments to planning permission dated 21st May 2026 (RN:25/05013/FULL) for Variation of conditions 1, 3, 8, 9 and 17 of planning permission dated 11th May 2022 (RN 18/09765/FULL) for the Change of use of rear part of Queensway Market to Retail, Financial and Professional services, Office and Restaurant (within Class E) use and 5 residential units facing Princes Court, reconfiguration of retail units along Queensway including introduction of Retail uses at Nos.23 and 33 (current entrances to Queensway Market) and use of Nos.25 and 41-43 Queensway as Restaurant uses, installation of new shopfronts to Nos.23 to 43 Queensway 23-43, erection of infill extension to rear at ground floor level, erection of two new pavilion structures for Retail use and associated new hard and soft landscaping on land between Queens Court and Princes Court, installation of green roofs, rooflights and mechanical plant within enclosures to first floor level roofs between projecting rear wings of Queens Court installation of kitchen extract ducts to rear elevations, and associated cycle parking, waste storage, plant and other ancillary alterations ('Application 2'). Namely, to vary the hours of operation for the refrigeration plant controlled by condition 6.

  Received 11 Sep, published by the council 21 Sep 2026 Amendments
• 26/06251/NMA Awaiting decision

  19 Cumberland Street London SW1V 4LS

  Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.

  Received 11 Sep, published by the council 18 Sep 2026 Amendments
• 26/06201/NMA Awaiting decision

  Almack House 28 King Street St James's London SW1Y 6QW

  Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.

  Received 10 Sep, published by the council 17 Sep 2026 Amendments
• 26/06212/NMA Awaiting decision

  10 - 11 Lancaster Gate London W2 3LH

  Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)

  Received 10 Sep, published by the council 17 Sep 2026 Amendments