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Planning application

13 Upper Belgrave Street London SW1X 8BA

Granted Westminster 25/08078/FULL Full Planning Permission Application

Relates to 25/08079/LBC

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Installation of a condenser unit on the roof.

As published by the council, reference 25/08078/FULL

Application record

Reference
25/08078/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
6 Nov 2025
Validated
11 Nov 2025
Decided
19 Mar 2026
Ward
Knightsbridge & Belgravia
Decision by
Delegated Decision
Postcode
SW1X 8BA

Site history

Applications at this address on the Westminster register

This site has had 9 applications since 2012: 3 approved, 1 refused.

  • 26/07298/FULL Awaiting decision

    13 Upper Belgrave Street London SW1X 8BA

    Replacement water tank room at roof level.

    Submitted 26 Oct 2026 Full applications
  • 26/07299/LBC Awaiting decision

    13 Upper Belgrave Street London SW1X 8BA

    Replacement water tank room at roof level (Linked to 26/07298/FULL)

    Submitted 26 Oct 2026 Heritage and listed buildings
  • 26/03800/LBC Decided

    13 Upper Belgrave Street London SW1X 8BA

    Removal of temporary timber ply structure, and infill existing opening with timber joists, finished with an asphalt finish.

    Submitted 10 Jun 2026 Heritage and listed buildings
  • 26/03799/FULL Decided

    13 Upper Belgrave Street London SW1X 8BA

    Removal of temporary timber ply structure, and infill existing opening with timber joists, finished with an asphalt finish at roof level.

    Submitted 10 Jun 2026 Full applications
  • 26/02241/LBC Awaiting decision

    13 Upper Belgrave Street London SW1X 8BA

    Installation of internal fan coil units.

    Submitted 2 Apr 2026 Heritage and listed buildings
  • 25/08079/LBC Refused

    13 Upper Belgrave Street London SW1X 8BA

    Installation of an external condenser at main roof level and six internal fan coil units and associated service routes at first floor level.

    Decided 19 Mar 2026 Heritage and listed buildings
  • 25/05795/LBC Granted

    13 Upper Belgrave Street London SW1X 8BA

    Internal alterations at first and mezzanine floor levels.

    Decided 6 Oct 2025 Heritage and listed buildings
  • 12/11274/FULL Granted

    13 Upper Belgrave Street London SW1X 8BA

    Installation of 85cm diameter transparent satellite dish on chimney stack to the rear.

    Decided 16 Jan 2013 Full applications

Timeline

Dates from the published record

  1. 6 Nov 2025

    Received by Westminster

  2. 11 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 19 Mar 2026

    Decision issued: Application Permitted

  4. 20 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/08079/LBC Refused

    13 Upper Belgrave Street London SW1X 8BA

    Installation of an external condenser at main roof level and six internal fan coil units and associated service routes at first floor level.

    Decided 19 Mar 2026 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

Leconfield Property Group Ltd Agent, registered in Chelsea

Active · incorporated 2010 · Chelsea

9 applications on PlanIndex · across 2 councils

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

25 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Westminster granted permission on 19 March 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.

About full applications

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.

Nearby applications

Within 0.3 miles

  • 13 Upper Belgrave Street London SW1X 8BA

    25/08079/LBC Submitted 6 Nov 2025 50 yards away

    Installation of an external condenser at main roof level and six internal fan coil units and associated service routes at first floor level.

    Refused Heritage and listed buildings 9 docs
  • 13 Upper Belgrave Street London SW1X 8BA

    25/05795/LBC Submitted 15 Aug 2025 50 yards away

    Internal alterations at first and mezzanine floor levels.

    Granted Heritage and listed buildings 21 docs
  • 12 Upper Belgrave Street London SW1X 8BA

    25/09276/LBC Submitted 22 Dec 2025 50 yards away

    Cladding of the treads and risers of the secondary stair in timber and replacement of existing door reveal between the main stair and the dining room with a traditional panelled timber reveal at first floor level.

    Granted Heritage and listed buildings 3 docs
  • 12 Upper Belgrave Street London SW1X 8BA

    25/04975/ADFULL Submitted 17 Jul 2025 50 yards away

    Details of door sets under entrance bridge pursuant to condition 7 (v) of planning permission dated 31 August 2023 (RN: 23/01615/FULL).

    Granted Full applications 9 docs
  • 13 Upper Belgrave Street London SW1X 8BA

    26/02241/LBC Submitted 2 Apr 2026 50 yards away

    90% historically approved · decision due ~28 May

    Installation of internal fan coil units.

    Awaiting decision Heritage and listed buildings 19 docs
  • 12 Upper Belgrave Street London SW1X 8BA

    25/04872/ADLBC Submitted 15 Jul 2025 50 yards away

    Details of door sets under entrance bridge pursuant to condition 5 (v) of listed building consent dated 31 August 2023 (RN: 23/01616/LBC).

    Granted Conditions 9 docs

In Westminster

  • 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