120 Harley Street London W1G 7JW

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

• 25/06391/FULL 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 25/06392/LBC)

  Decided 11 Nov 2025 Full applications

1. 8 Sep 2025

   Received by Westminster

2. 11 Nov 2025

   Decision issued: Application Permitted

3. 21 Jul 2026

   Added to PlanIndex

• 25/06391/FULL 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 25/06392/LBC)

  Decided 11 Nov 2025 Full applications

1 later application on the register refers to this one:

• 25/06391/FULL 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 25/06392/LBC)

  Decided 11 Nov 2025 Full applications

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.

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.

• 120 Harley Street London W1G 7JW

  25/06391/FULL 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 25/06392/LBC)

  Granted Full applications 62 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

• 26/06288/LBC Decided

  Barness Court 6 - 8 Westbourne Terrace London W2 3UW

  Installation of a gas pipework to south elevation and wall. (Linked with 26/06287/FULL)

  Received 14 Sep, published by the council 21 Sep 2026 Heritage and listed buildings
• 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