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Planning application

17 Hertford Street London W1J 7RS

Granted Westminster 25/07828/LBC Listed Building Consent Application

Relates to 25/07827/FULL

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

Proposal

Internal reconfigurations, restoration and associated works.

As published by the council, reference 25/07828/LBC

Application record

Reference
25/07828/LBC
Type
Listed Building Consent Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
29 Oct 2025
Validated
6 Nov 2025
Decided
31 Mar 2026
Ward
West End
Decision by
Delegated Decision
Postcode
W1J 7RS

Site history

Applications at this address on the Westminster register

This site has had 11 applications since 2007: 3 approved, 0 refused.

  • 26/06165/LBC Decided

    17 Hertford Street London W1J 7RS

    Internal alterations to the basement including new lightweight timber-stud partitions to reorganise the existing basement layout; Installation of new sanitaryware in a newly configured bathroom; Replacement of modern kitchen fittings; and Installation of traditional four-panel timber doors, architraves and ironmongery designed to match existing doors.

    Submitted 9 Sep 2026 Heritage and listed buildings
  • 26/03409/FULL Awaiting decision

    17 Hertford Street London W1J 7RS

    Replacement of the mansard infill extension to the south east of the property by extending the existing bay upwards by a single storey (3-storeys total) and associated roof works to improve the internal space. (Linked with 26/03410/LBC)

    Submitted 22 May 2026 Full applications
  • 26/03484/ADLBC Decided

    17 Hertford Street London W1J 7RS

    Details of all new windows / reduction in size of dormer windows / facing materials pursuant to conditions 4, 5 and 7 of listed building consent dated 13 February 2025 (RN: 24/03932/LBC) [Linked to 26/03406/ADFULL]

    Submitted 22 May 2026
  • 26/03410/LBC Awaiting decision

    17 Hertford Street London W1J 7RS

    Replacement of the mansard infill extension to the south east of the property by extending the existing bay upwards by a single storey (3-storeys total) and associated roof works to improve the internal space. (Linked with 26/03409/FULL)

    Submitted 22 May 2026 Heritage and listed buildings
  • 26/03406/ADFULL Decided

    17 Hertford Street London W1J 7RS

    Details of all new windows / reduction in size of dormer windows / facing materials pursuant to conditions 4, 5 and 6 of planning permission dated 13 February 2025 (RN: 24/03931/FULL) [Linked to 26/03484/ADLBC]

    Submitted 22 May 2026
  • 26/02817/FULL Withdrawn

    17 Hertford Street London W1J 7RS

    Replacement of non-original casement windows at Level 03 with timber sash windows; new structure for mansard extension, infill of existing lightwell and repositioning of skylight above stairwell. [Linked to 26/02818/LBC]

    Submitted 28 Apr 2026 Full applications
  • 26/02818/LBC Awaiting decision

    17 Hertford Street London W1J 7RS

    Replacement of non-original casement windows at Level 03 with timber sash windows; new structure for mansard extension, infill of existing lightwell and repositioning of skylight above stairwell. [Linked to 26/02817/FULL]

    Submitted 28 Apr 2026 Heritage and listed buildings
  • 25/07827/FULL Withdrawn

    17 Hertford Street London W1J 7RS

    Addition of a fourth-floor mansard roof to allow for the creation of a one-bedroom apartment for short term letting purposes, replacement of windows at third floor level, internal and external restoration, redecoration and minor reconfigurations and other associated works. (Linked 25/07828/LBC)

    Decided 26 Feb 2026 Full applications
  • 07/01340/LBC Granted

    17 Hertford Street London W1J 7RS

    Installation of nine air-conditioning units at roof level and replacement of roof access enclosure and rooflight; installation of associated internal units and pipework.

    Decided 3 Jul 2008 Heritage and listed buildings
  • 07/01339/FULL Granted

    17 Hertford Street London W1J 7RS

    Installation of nine air-conditioning units at roof level and replacement of roof access enclosure and rooflight.

    Decided 3 Jul 2008 Full applications

Timeline

Dates from the published record

  1. 29 Oct 2025

    Received by Westminster

  2. 6 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 31 Mar 2026

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/07827/FULL Withdrawn

    17 Hertford Street London W1J 7RS

    Addition of a fourth-floor mansard roof to allow for the creation of a one-bedroom apartment for short term letting purposes, replacement of windows at third floor level, internal and external restoration, redecoration and minor reconfigurations and other associated works. (Linked 25/07828/LBC)

    Decided 26 Feb 2026 Full applications

1 later application on the register refers to this one:

  • 25/07827/FULL Withdrawn

    17 Hertford Street London W1J 7RS

    Addition of a fourth-floor mansard roof to allow for the creation of a one-bedroom apartment for short term letting purposes, replacement of windows at third floor level, internal and external restoration, redecoration and minor reconfigurations and other associated works. (Linked 25/07828/LBC)

    Decided 26 Feb 2026 Full applications

Who's behind it

Company information only, from the register and Companies House

Arya Douge Agent, registered in London

Active · incorporated 2021 · London

15 applications on PlanIndex · across 3 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

56 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 31 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 heritage and listed building applications

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.

Nearby applications

Within 0.3 miles

  • 17 Hertford Street London W1J 7RS

    25/07827/FULL Submitted 29 Oct 2025 50 yards away

    Addition of a fourth-floor mansard roof to allow for the creation of a one-bedroom apartment for short term letting purposes, replacement of windows at third floor level, internal and external restoration, redecoration and minor reconfigurations and other associated works. (Linked 25/07828/LBC)

    Withdrawn Full applications Loft or dormer Windows or glazing 37 docs

  • 17 Hertford Street London W1J 7RS

    26/03409/FULL Submitted 22 May 2026 50 yards away

    88% historically approved · decision due ~6 Aug

    Replacement of the mansard infill extension to the south east of the property by extending the existing bay upwards by a single storey (3-storeys total) and associated roof works to improve the internal space. (Linked with 26/03410/LBC)

    Awaiting decision Full applications Extension Loft or dormer 32 docs
    Small domestic

  • 17 Hertford Street London W1J 7RS

    26/03410/LBC Submitted 22 May 2026 50 yards away

    90% historically approved · decision due ~6 Aug

    Replacement of the mansard infill extension to the south east of the property by extending the existing bay upwards by a single storey (3-storeys total) and associated roof works to improve the internal space. (Linked with 26/03409/FULL)

    Awaiting decision Heritage and listed buildings Extension Loft or dormer 28 docs
    Small domestic

  • 17 Hertford Street London W1J 7RS

    26/02817/FULL Submitted 28 Apr 2026 50 yards away

    Replacement of non-original casement windows at Level 03 with timber sash windows; new structure for mansard extension, infill of existing lightwell and repositioning of skylight above stairwell. [Linked to 26/02818/LBC]

    Withdrawn Full applications Extension Loft or dormer +1 1 doc

  • 17 Hertford Street London W1J 7RS

    26/02818/LBC Submitted 28 Apr 2026 50 yards away

    90% historically approved · decision due ~23 Jun

    Replacement of non-original casement windows at Level 03 with timber sash windows; new structure for mansard extension, infill of existing lightwell and repositioning of skylight above stairwell. [Linked to 26/02817/FULL]

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

  • 17 Hertford Street London W1J 7RS

    07/01340/LBC Submitted 12 Feb 2007 50 yards away

    Installation of nine air-conditioning units at roof level and replacement of roof access enclosure and rooflight; installation of associated internal units and pipework.

    Granted Heritage and listed buildings Loft or dormer 2 docs

In Westminster

  • 26/07529/LBC Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water supply pipe on rear courtyard elevation. (Linked with 26/07528/FULL)

    Received 5 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 26/07509/LBC 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 26/07508/FULL)

    Received 4 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
  • 26/07473/LBC Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07472/FULL)

    Received 3 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 26/07471/LBC Awaiting decision

    12 Queen Anne's Gate London SW1H 9AA

    Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)

    Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
  • 26/07461/LBC Awaiting decision

    1 Savile Row London W1S 3JR

    Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

    Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings