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Planning application

120 Harley Street London W1G 7JW

Granted Westminster 25/06391/FULL Full Planning Permission Application

Relates to 25/06392/LBC

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

Proposal

Internal and external alterations in connection with the installation of plant, structural repairs to Juliet balcony and front entrance steps. (Linked to 25/06392/LBC)

As published by the council, reference 25/06391/FULL

Application record

Reference
25/06391/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
8 Sep 2025
Validated
8 Sep 2025
Decided
11 Nov 2025
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1G 7JW

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 25/06392/LBC Granted

    120 Harley Street London W1G 7JW

    Internal and external alterations in connection with the installation of plant, structural repairs to Juliet balcony and front entrance steps. (Linked to 25/06391/FULL)

    Decided 11 Nov 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 8 Sep 2025

    Received by Westminster

  2. 11 Nov 2025

    Decision issued: Application Permitted

  3. 21 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/06392/LBC Granted

    120 Harley Street London W1G 7JW

    Internal and external alterations in connection with the installation of plant, structural repairs to Juliet balcony and front entrance steps. (Linked to 25/06391/FULL)

    Decided 11 Nov 2025 Heritage and listed buildings

1 later application on the register refers to this one:

  • 25/06392/LBC Granted

    120 Harley Street London W1G 7JW

    Internal and external alterations in connection with the installation of plant, structural repairs to Juliet balcony and front entrance steps. (Linked to 25/06391/FULL)

    Decided 11 Nov 2025 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

Howard de Walden Estates Limited Agent, a developer registered in London

Active · incorporated 1963 · London

35 applications on PlanIndex

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

62 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 11 November 2025, 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

  • 120 Harley Street London W1G 7JW

    25/06392/LBC Submitted 8 Sep 2025 50 yards away

    Internal and external alterations in connection with the installation of plant, structural repairs to Juliet balcony and front entrance steps. (Linked to 25/06391/FULL)

    Granted Heritage and listed buildings 59 docs

  • 3 Devonshire Mews North London W1G 7BJ

    13/03948/FULL Submitted 30 Apr 2013 50 yards away

    External alterations to front and rear elevation, demolition of existing garage, erection of a new single storey front and rear extension at ground floor level and alterations at roof level to single family dwelling (Class C3).

    Granted Full applications Extension Demolition 16 docs
    Small domestic

  • 3 Devonshire Mews North London W1G 7BJ

    12/11070/FULL Submitted 1 Nov 2012 50 yards away

    External alterations to front and rear elevation, demolition of existing garage, erection of a new single storey front and rear extension at ground floor level and alterations at roof level to create additional residential accommodation to existing house..

    Granted Full applications Extension Demolition 14 docs
    Small domestic

  • Site At 114 To 118 Harley Street And 5 - 6 Devonshire Mews North London W1G 7JL

    04/09114/FULL Submitted 16 Nov 2004 50 yards away

    Redevelopment to include the demolition of 116 Harley Street and 5-6 Devonshire Mews North and facade retention of 114 and 118 Harley Street to provide a new building comprising basement, ground and part two, part four upper floors for use for medical purposes (Class D1(a)) throughout and two self contained flats fronting Devonshire Mews North. (Part use swap with various properties including Collingwood House and buildings in Queen Anne Street, Wimpole Street, Devonshire Place and Marylebone High Street).

    Granted Full applications New dwelling Demolition 14 docs

  • Site At 114 To 118 Harley Street And 5 - 6 Devonshire Mews North London W1G 7JL

    04/09115/CAC Submitted 16 Nov 2004 50 yards away

    Demolition of 116 Harley Street and 5 - 6 Devonshire Mews North and the demolition of 114-118 Harley Street behind retained facades.

    Granted Heritage and listed buildings Demolition 2 docs

  • Site At 114 To 118 Harley Street And 5 - 6 Devonshire Mews North London W1G 7JL

    08/05813/ADFULL Submitted 4 Jul 2008 50 yards away

    Details of public art pursuant to Condition 17.2 of planning permission dated 23 December 2005 (RN: 04/09114).

    Granted Full applications 4 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront with Medication Dispensing Outlet.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06317/FULL 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 26/06318/LBC)

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06273/FULL Awaiting decision

    9A Grosvenor Square London W1K 5AE

    Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications