Second Floor (Excluding North East Part) Devonshire House Mayfair Place London W1J 8AJ

This site has had 2 applications since 2026.

• 26/05129/FULL Decided

  Second Floor (Excluding North East Part) Devonshire House Mayfair Place London W1J 8AJ

  Installation of two air conditioning condenser units to the second floor lightwell, two internal air conditioning units, and associated pipework. (Linked with 26/05130/LBC)

  Submitted 30 Jul 2026 Full applications

1. 30 Jul 2026

   Received by Westminster

2. 20 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 30 Aug 2026

   Added to PlanIndex

4. 12 Oct 2026

   Status changed to Decided

   Previously Pending.

• 26/05129/FULL Decided

  Second Floor (Excluding North East Part) Devonshire House Mayfair Place London W1J 8AJ

  Installation of two air conditioning condenser units to the second floor lightwell, two internal air conditioning units, and associated pipework. (Linked with 26/05130/LBC)

  Submitted 30 Jul 2026 Full applications

1 later application on the register refers to this one:

• 26/05129/FULL Decided

  Second Floor (Excluding North East Part) Devonshire House Mayfair Place London W1J 8AJ

  Installation of two air conditioning condenser units to the second floor lightwell, two internal air conditioning units, and associated pipework. (Linked with 26/05130/LBC)

  Submitted 30 Jul 2026 Full applications

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.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• Devonshire House Mayfair Place London W1J 8AJ

  26/03963/ADLBC Submitted 16 Jun 2026 50 yards away

  89% historically approved · decision due ~11 Aug

  Details of facing materials pursuant to condition 3 of listed building consent dated 19 May 2026 (RN: 25/08851/LBC).

  Decided

• Second Floor (Excluding North East Part) Devonshire House Mayfair Place London W1J 8AJ

  26/05129/FULL Submitted 30 Jul 2026 50 yards away

  88% historically approved · decision due ~15 Oct

  Installation of two air conditioning condenser units to the second floor lightwell, two internal air conditioning units, and associated pipework. (Linked with 26/05130/LBC)

  Decided Full applications

• Devonshire House Mayfair Place London W1J 8AJ

  25/05061/ADFULL Submitted 21 Jul 2025 50 yards away

  Detailed drawings of the new doors pursuant to condition 6 of planning permission dated 13th February 2025 (RN:24/06627/FULL)

  Granted Full applications 9 docs

• Devonshire House Mayfair Place London W1J 8AJ

  25/05178/ADLBC Submitted 21 Jul 2025 50 yards away

  Detailed drawings of the new doors pursuant to Condition 2 of listed building consent dated 13th February 2025 (RN:24/06628/LBC)

  Granted Conditions 9 docs

• Devonshire House Mayfair Place London W1J 8AJ

  23/03662/FULL Submitted 1 Jun 2023 50 yards away

  Works to the tenth floor terrace to include installation of new timber furniture shed, decking, lighting, planting and new access doors. Internal alterations at ninth and tenth floor levels. (Linked with 23/03663/LBC)

  Granted Full applications 29 docs
  Small domestic

• Devonshire House Mayfair Place London W1J 8AJ

  23/03663/LBC Submitted 1 Jun 2023 50 yards away

  Works to the tenth floor terrace to include installation of new timber furniture shed, decking, lighting, planting and new access doors. Internal alterations at ninth and tenth floor levels. (Linked with 23/03662/FULL)

  Granted Heritage and listed buildings 23 docs
  Small domestic

• 26/06919/LBC Decided

  43 Berkeley Square London W1J 5AP

  Replacement glazing to the roof lantern.

  Received 9 Oct, published by the council 15 Oct 2026 Heritage and listed buildings
• 26/07223/LBC Awaiting decision

  Paddington Station Praed Street London W2 1HB

  Installation of a new louvred enclosure, with access doors, across the entrance to the under-croft area.

  Received 22 Oct, published by the council 26 Oct 2026 Heritage and listed buildings
• 26/07202/LBC Awaiting decision

  Basement East And Ground Floor And First Floor 33 Weymouth Street London W1G 7BY

  Replacement of 13 doorsets with fire doors.

  Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings
• 26/07183/LBC Awaiting decision

  306 - 308 Regent Street London W1B 3AT

  Installation of a manually operated retractable fabric awning to the existing shopfront at 308 Regent Street, comprising an orange fabric canopy with discreet printed lettering to the front valance, together with associated supporting framework, mounting brackets and fixings to the existing fa?ade.

  Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings
• 26/07191/LBC Awaiting decision

  6 Wilton Place London SW1X 8RH

  Layout alterations and replacement of internal doors.

  Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings