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Planning application

52 Jermyn Street London SW1Y 6LX

Granted Westminster 25/09259/FULL Full Planning Permission Application

Works: Windows or glazing

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

Proposal

Installation of one external condenser unit at first-floor roof level and installation of lourves to first floor lightwell window.

As published by the council, reference 25/09259/FULL

Application record

Reference
25/09259/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
22 Dec 2025
Validated
22 Dec 2025
Decided
26 Mar 2026
Ward
St James's
Decision by
Delegated Decision
Postcode
SW1Y 6LX

Site history

Applications at this address on the Westminster register

This site has had 7 applications since 2022: 5 approved, 0 refused.

  • 26/04353/ADFULL Decided

    52 Jermyn Street London SW1Y 6LX

    Details of external windows and doors pursuant to condition 4 of planning permission dated 10 June 2026 (RN: 25/07507/FULL).

    Submitted 1 Jul 2026
  • 26/04341/ADLBC Decided

    52 Jermyn Street London SW1Y 6LX

    Details of external windows, doors and fireplace pursuant to condition 3 of Listed Building Consent dated 10 June 2026 (RN: 25/07508/LBC).

    Submitted 1 Jul 2026
  • 25/09260/LBC Granted

    52 Jermyn Street London SW1Y 6LX

    Installation of one external condenser unit at first-floor roof level and installation of lourves to first floor lightwell window.

    Decided 26 Mar 2026 Heritage and listed buildings
  • 25/07507/FULL Granted

    52 Jermyn Street London SW1Y 6LX

    Installation of an external door opening, window, and staircase to the central link block to provide access to an external courtyard, and internal refurbishment works.

    Decided 10 Jun 2026 Full applications
  • 25/07508/LBC Granted

    52 Jermyn Street London SW1Y 6LX

    Installation of an external door opening, window, and staircase to the central link block to provide access to an external courtyard, and internal refurbishment works.

    Decided 10 Jun 2026 Heritage and listed buildings
  • 22/04285/LBC Granted

    52 Jermyn Street London SW1Y 6LX

    Installation of an O2 Motion device and associated works on the building facade.

    Decided 18 Aug 2022 Heritage and listed buildings

Timeline

Dates from the published record

  1. 22 Dec 2025

    Received by Westminster

  2. 26 Mar 2026

    Decision issued: Application Permitted

  3. 20 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

DP9 Ltd Agent

Active · incorporated 2004

2,618 applications on PlanIndex · across 36 councils · 98% granted

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

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Documents

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

20 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.

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What this grant of permission means

Westminster granted permission on 26 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

  • 52 Jermyn Street London SW1Y 6LX

    25/09260/LBC Submitted 22 Dec 2025 50 yards away

    Installation of one external condenser unit at first-floor roof level and installation of lourves to first floor lightwell window.

    Granted Heritage and listed buildings Windows or glazing 17 docs

  • 52 Jermyn Street London SW1Y 6LX

    25/07507/FULL Submitted 16 Oct 2025 50 yards away

    Installation of an external door opening, window, and staircase to the central link block to provide access to an external courtyard, and internal refurbishment works.

    Granted Full applications Windows or glazing 21 docs

  • 52 Jermyn Street London SW1Y 6LX

    25/07508/LBC Submitted 16 Oct 2025 50 yards away

    Installation of an external door opening, window, and staircase to the central link block to provide access to an external courtyard, and internal refurbishment works.

    Granted Heritage and listed buildings Windows or glazing 19 docs

  • Piccadilly Arcade London

    26/00341/LBC Submitted 21 Jan 2026 50 yards away

    90% historically approved · decision due ~18 Mar

    Installation of wall mounted lighting on columns to provide vertical illumination; installation of speakers, CCTV and light projector; hidden LED strips within ceiling coves; linear uplighting and vertical lighting on the Piccadilly and Jermyn Street facades; installation of steel brackets, hidden behind pilasters for the hanging of seasonal decorations; and, restoration and enhancement of the decorative pendants, and general localised repairs and repainting throughout the arcade. (Linked to 26/00340/FULL)

    Awaiting decision Heritage and listed buildings 20 docs

  • Piccadilly Arcade London

    26/00340/FULL Submitted 21 Jan 2026 50 yards away

    88% historically approved · decision due ~18 Mar

    Installation of wall mounted lighting on columns to provide vertical illumination; installation of speakers, CCTV and light projector; hidden LED strips within ceiling coves; linear uplighting and vertical lighting on the Piccadilly and Jermyn Street facades; installation of steel brackets, hidden behind pilasters for the hanging of seasonal decorations; and, restoration and enhancement of the decorative pendants, and general localised repairs and repainting throughout the arcade. (Linked to 26/00341/LBC)

    Awaiting decision Full applications 23 docs

  • Egyptian House 170-173 Picadilly London W1J 9EJ

    23/03865/FULL Submitted 9 Jun 2023 50 yards away

    Internal and external refurbishment works including minor works of demolition including installation of plant, in order to combine no.172 and 173, two existing Class E units, for use of part ground floor and basement of 172-173 Piccadilly within a Class E a/b use, and to reestablish Unit 6 Piccadilly Arcade as a standalone Class E unit. (Linked with 23/03866/LBC)

    Granted Full applications Demolition 57 docs

In Westminster

  • 26/06234/FULL Decided

    40 Grosvenor Place London SW1X 7HJ

    Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

    Received 11 Sep, published by the council 18 Sep 2026 Full applications
  • 26/06015/FULL Decided

    129 Saltram Crescent London W9 3JT

    Erection of a two-storey rear extension.

    Received 3 Sep, published by the council 11 Sep 2026 Full applications
  • 26/07382/FULL Awaiting decision

    90 Gloucester Place London W1U 6HS

    Use of the building as an embassy (sui generis)

    Received 28 Oct, published by the council 2 Nov 2026 Full applications
  • 26/07363/FULL Awaiting decision

    36 Kilravock Street London W10 4HX

    Demolition of existing rear/side extension and construction of a new extension together with new glazing and doors, and changing the existing rooflights to the rear roof slope with new rooflights.

    Received 28 Oct, published by the council 2 Nov 2026 Full applications
  • 26/07371/FULL Awaiting decision

    8A Randolph Road London W9 1AN

    Amalgamation of two residential units with internal refurbishment and reconfiguration. (Linked with 26/07372/LBC)

    Received 28 Oct, published by the council 2 Nov 2026 Full applications