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Planning application

17 Welbeck Street London W1G 9XJ

Granted Westminster 25/06438/LBC Listed Building Consent Application

Works: Loft or dormer Windows or glazing

Relates to 25/06437/FULL

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

Proposal

Installation of five condenser units to internal lightwell and internal fan coil units with associated pipework, refurbishment works including repairs to external staircase, removal of non-original metal shutters to windows, reconstruct existing internal riser in fireproof material, replace non-original internal doors with panelled doors, replaced existing WCs, remove non-original internal glazing and rebuilt partition, insulation to roof, new partition to mansard roof. (Linked to 25/06437/FULL)

As published by the council, reference 25/06438/LBC

Application record

Reference
25/06438/LBC
Type
Listed Building Consent Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
9 Sep 2025
Validated
9 Sep 2025
Decided
3 Mar 2026
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1G 9XJ

Site history

Applications at this address on the Westminster register

This site has had 3 applications since 2025: 3 approved, 0 refused.

  • 26/02773/ADLBC Granted

    17 Welbeck Street London W1G 9XJ

    Detailed drawings (scale 1:20 and 1:5) of the new doors, with key details and locations, including labelled and located photographs of existing to be replaced pursuant to condition 4 of listed building consent dated 3rd March 2026 (RN: 25/06438/LBC)

    Decided 15 May 2026 Conditions
  • 25/06437/FULL Granted

    17 Welbeck Street London W1G 9XJ

    Installation of five condenser units to internal lightwell and associated pipework and refurbishment works including repairs to external staircase. (Linked to 25/06438/LBC)

    Decided 3 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 9 Sep 2025

    Received by Westminster

  2. 3 Mar 2026

    Decision issued: Application Permitted

  3. 21 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/06437/FULL Granted

    17 Welbeck Street London W1G 9XJ

    Installation of five condenser units to internal lightwell and associated pipework and refurbishment works including repairs to external staircase. (Linked to 25/06438/LBC)

    Decided 3 Mar 2026 Full applications

1 later application on the register refers to this one:

  • 25/06437/FULL Granted

    17 Welbeck Street London W1G 9XJ

    Installation of five condenser units to internal lightwell and associated pipework and refurbishment works including repairs to external staircase. (Linked to 25/06438/LBC)

    Decided 3 Mar 2026 Full applications

Who's behind it

Company information only, from the register and Companies House

Howard de Walden Estate ltd Agent

25 applications on PlanIndex · 95% granted

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

21 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 3 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 Welbeck Street London W1G 9XJ

    26/02773/ADLBC Submitted 27 Apr 2026 50 yards away

    Detailed drawings (scale 1:20 and 1:5) of the new doors, with key details and locations, including labelled and located photographs of existing to be replaced pursuant to condition 4 of listed building consent dated 3rd March 2026 (RN: 25/06438/LBC)

    Granted Conditions 9 docs

  • 17 Welbeck Street London W1G 9XJ

    25/06437/FULL Submitted 9 Sep 2025 50 yards away

    Installation of five condenser units to internal lightwell and associated pipework and refurbishment works including repairs to external staircase. (Linked to 25/06438/LBC)

    Granted Full applications 24 docs

  • 13 - 14 Welbeck Street London W1G 9BN

    22/03333/FULL Submitted 18 May 2022 50 yards away

    Internal and external alterations to the buildings including new doors, a new lightwell at lower ground floor level of 14 Welbeck Street, new rear ground floor terrace to 13 Welbeck Street and installation of plant in the front pavement vaults, at main roof level and rear first floor level.

    Granted Full applications 37 docs

  • 13 - 14 Welbeck Street London W1G 9BN

    22/03334/LBC Submitted 18 May 2022 50 yards away

    Internal and external alterations to the buildings including new doors, a new lightwell at lower ground floor level of 14 Welbeck Street, new rear ground floor terrace to 13 Welbeck Street and installation of plant in the front pavement vaults, at main roof level and rear first floor level.

    Granted Heritage and listed buildings 37 docs

  • Ground Floor 1 Bentinck Street London W1U 2EA

    26/05405/FULL Submitted 7 Aug 2026 50 yards away

    87% historically approved · decision due ~2 Oct

    Use of the ground floor for Dual Use as Retail (Class E (a)) and Caf/e (Class E (b)) for a temporary period of 20 years.

    Awaiting decision Full applications

  • 1 Bentinck Street London W1U 2EA

    26/05398/FULL Submitted 7 Aug 2026 50 yards away

    87% historically approved · decision due ~12 Oct

    Installation of external air condensers to lower-ground lightwell with corresponding internal alterations to lower-ground floor - third floor including: degassing and associated piped heating system, installation of fan coil units and panel heaters, acoustic improvements and slimline double glazing throughout. (Linked with 26/05399/LBC)

    Awaiting decision Full applications Windows or glazing

In Westminster

  • 26/04878/LBC Decided

    34 Grosvenor Street London W1K 4QU

    Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

    Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
  • 26/06299/LBC Awaiting decision

    Apartment 33 24 Park Crescent London W1B 1AA

    Alterations to internal partitions, door openings, doors and floor finishes.

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/06305/LBC Awaiting decision

    33A Dean Street London W1D 4PP

    Installation of new concrete slab with drainage channels at basement level and new fire surround in B.01.

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/06318/LBC Awaiting decision

    124 Hamilton Terrace London NW8 9UT

    Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06317/FULL)

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/04141/LBC Decided

    80E Randolph Avenue London W9 1BG

    Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)

    Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings