12 Golden Square London W1F 9JE

This site has had 2 applications since 2026.

• 26/01631/FULL Awaiting decision

  12 Golden Square London W1F 9JE

  Installation of external air conditioning units and screen to the roof.

  Submitted 12 Mar 2026 Full applications

1. 1 Sep 2026

   Received by Westminster

2. 7 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 11 Sep 2026

   Added to PlanIndex

4. 19 Oct 2026

   Status changed to Decided

   Previously Pending.

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

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.

• 12 Golden Square London W1F 9JE

  26/01631/FULL Submitted 12 Mar 2026 50 yards away

  88% historically approved · decision due ~7 May

  Installation of external air conditioning units and screen to the roof.

  Awaiting decision Full applications 26 docs

• 3 - 3A Lower James Street London W1F 9EQ

  05/01147/AD7 Submitted 14 Feb 2005 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building outside No. 3A, at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

  Granted Advertising 2 docs

• 3 Lower James Street London W1F 9EQ

  10/06033/ADV Submitted 15 Jul 2010 50 yards away

  Display of externally illuminated fascia sign measuring 2.75m x 0.58mn (split decision).

  Granted Advertising 1 doc

• 3 Lower James Street London W1F 9EQ

  10/05974/FULL Submitted 13 Jul 2010 50 yards away

  Installation of two air conditioning units on raised platform at rear first floor level within acoustic enclosure.

  Granted Full applications 7 docs

• 3 - 3A Lower James Street London W1F 9EQ

  04/05969/AD7 Submitted 29 Jul 2004 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building outside No.3A, at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

  Granted Advertising 2 docs

• 3 - 3A Lower James Street London W1F 9EQ

  04/00381/AD7 Submitted 20 Jan 2004 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building outside No.3A, at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

  Granted Advertising 3 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