123 - 125 Gloucester Place London W1U 6JZ

This site has had 2 applications since 2026.

• 26/01709/FULL Awaiting decision

  123 - 125 Gloucester Place London W1U 6JZ

  Change of use of one room in a Class C3 Dwellinghouse, currently used as an ancillary office, to Class E (e) Medical or Health services, with minor internal changes. Existing residential use in Unit F is to be maintained. (Linked to 26/01710/LBC)

  Submitted 17 Mar 2026 Full applications

1. 17 Mar 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 12 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 66 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 94 days. More in our guide to how long planning decisions take.

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.

• 123 - 125 Gloucester Place London W1U 6JZ

  26/01709/FULL Submitted 17 Mar 2026 50 yards away

  87% historically approved · decision due ~12 May

  Change of use of one room in a Class C3 Dwellinghouse, currently used as an ancillary office, to Class E (e) Medical or Health services, with minor internal changes. Existing residential use in Unit F is to be maintained. (Linked to 26/01710/LBC)

  Awaiting decision Full applications 16 docs
  Domestic

• Flat 1 123 - 125 Gloucester Place London W1U 6JZ

  26/05646/LBC Submitted 18 Aug 2026 50 yards away

  90% historically approved · decision due ~19 Oct

  Internal alterations including removal of the existing false ceiling and installation of a bathroom ventilation outlet to the rear elevation (Linked to 26/05450/FULL)

  Awaiting decision Heritage and listed buildings

• Flat 1 123 - 125 Gloucester Place London W1U 6JZ

  26/05450/FULL Submitted 11 Aug 2026 50 yards away

  87% historically approved · decision due ~19 Oct

  Internal alterations including the removal of the false ceiling, and the installation of a bathroom vent at the rear of the property (Linked to 26/05646/LBC)

  Awaiting decision Full applications

• 22 Portman Square London W1H 7BG

  25/06160/FULL Submitted 29 Aug 2025 50 yards away

  Use of part of basment car park as self storgae (class B8) purposes, together with external alterations to access points, installation of a platform lift, a canopy and associated works.

  Granted Full applications 26 docs

• 119 Gloucester Place London W1U 6JX

  08/05512/FULL Submitted 25 Jun 2008 50 yards away

  Use as a single dwelling house (Class C3). Minor alterations to front facade, demolition and rebuilding of ground and basement rear extension and enlargement of courtyard at rear ground and first floor levels.

  Granted Full applications Extension Demolition 15 docs
  Domestic

• 119 Gloucester Place London W1U 6JX

  08/05513/LBC Submitted 25 Jun 2008 50 yards away

  Internal alterations in connection with the use of the building as a single family dwelling. Minor alterations to front facade demolition and rebuild of ground and basement rear extension and enlargement of courtyard at rear ground and first floor level.

  Granted Heritage and listed buildings Extension Demolition 2 docs
  Domestic

• 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