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

• 26/04878/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