4 Mansfield Mews London W1G 9NL

This site has had 4 applications since 2025: 2 approved, 0 refused.

• 25/08603/FULL Granted

  4 Mansfield Mews London W1G 9NL

  Replacement of garage door with smaller size door; internal layout alterations; and associated works. (Linked with 25/08604/LBC)

  Decided 24 Apr 2026 Full applications
• 25/05100/LBC Withdrawn

  4 Mansfield Mews London W1G 9NL

  Partial removal of existing roof to create new roof terrace, accessible via a new stair with 0.9m balustrade perimeter; new glazed screen to courtyard; new window to the South Elevation; replacement of external door with a window at south elevation; re-covering and reinsulation ofr oof pitch on the Mews road elevation; modifications to the Mews Elevation and the creation of an internal bin store; and internal alterations to create a new double-height living space and reconfiguring the layout to incorporate one bedroom, a kitchen, a shower room, and a WC. (Linked to 25/05099/FULL)

  Decided 1 Oct 2025 Heritage and listed buildings
• 25/05099/FULL Withdrawn

  4 Mansfield Mews London W1G 9NL

  Partial removal of existing roof to create new roof terrace, accessible via a new stair with 0.9m balustrade perimeter; new glazed screen to courtyard; new window to the South Elevation; replacement of external door with a window at south elevation; re-covering and reinsulation of roof pitch on the Mews road elevation; modifications to the Mews Elevation and the creation of an internal bin store; and internal alterations to create a new double-height living space and reconfiguring the layout to incorporate one bedroom, a kitchen, a shower room, and a WC. (Linked with 25/05100/LBC)

  Decided 1 Oct 2025 Full applications

1. 25 Nov 2025

   Received by Westminster

2. 24 Apr 2026

   Decision issued: Application Permitted

3. 1 Aug 2026

   Added to PlanIndex

• 25/08603/FULL Granted

  4 Mansfield Mews London W1G 9NL

  Replacement of garage door with smaller size door; internal layout alterations; and associated works. (Linked with 25/08604/LBC)

  Decided 24 Apr 2026 Full applications

1 later application on the register refers to this one:

• 25/08603/FULL Granted

  4 Mansfield Mews London W1G 9NL

  Replacement of garage door with smaller size door; internal layout alterations; and associated works. (Linked with 25/08604/LBC)

  Decided 24 Apr 2026 Full applications

Westminster granted permission on 24 April 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.

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.

• 4 Mansfield Mews London W1G 9NL

  25/08603/FULL Submitted 25 Nov 2025 50 yards away

  Replacement of garage door with smaller size door; internal layout alterations; and associated works. (Linked with 25/08604/LBC)

  Granted Full applications 14 docs

• 4 Mansfield Mews London W1G 9NL

  25/05099/FULL Submitted 22 Jul 2025 50 yards away

  Partial removal of existing roof to create new roof terrace, accessible via a new stair with 0.9m balustrade perimeter; new glazed screen to courtyard; new window to the South Elevation; replacement of external door with a window at south elevation; re-covering and reinsulation of roof pitch on the Mews road elevation; modifications to the Mews Elevation and the creation of an internal bin store; and internal alterations to create a new double-height living space and reconfiguring the layout to incorporate one bedroom, a kitchen, a shower room, and a WC. (Linked with 25/05100/LBC)

  Withdrawn Full applications Roofing Windows or glazing 20 docs

• 4 Mansfield Mews London W1G 9NL

  25/05100/LBC Submitted 22 Jul 2025 50 yards away

  Partial removal of existing roof to create new roof terrace, accessible via a new stair with 0.9m balustrade perimeter; new glazed screen to courtyard; new window to the South Elevation; replacement of external door with a window at south elevation; re-covering and reinsulation ofr oof pitch on the Mews road elevation; modifications to the Mews Elevation and the creation of an internal bin store; and internal alterations to create a new double-height living space and reconfiguring the layout to incorporate one bedroom, a kitchen, a shower room, and a WC. (Linked to 25/05099/FULL)

  Withdrawn Heritage and listed buildings Roofing Windows or glazing 25 docs

• Orbis House 5 Mansfield Street London W1G 9NG

  25/08080/CLEUD Submitted 6 Nov 2025 50 yards away

  86% historically approved · decision due ~1 Jan

  Confirmation that the material change of use from office to use as a single family dwelling house under planning permission (RN 12/09926/FULL) has taken place and that use as a single family dwelling house is now the building's existing lawful use.

  Awaiting decision Lawful development 20 docs
  Domestic

• 48 Harley Street London W1G 9PU

  26/02761/LBC Submitted 24 Apr 2026 50 yards away

  90% historically approved · decision due ~19 Jun

  Internal alterations in the form of new stud wall partitions to lower ground floor.

  Awaiting decision Heritage and listed buildings 11 docs

• Orbis House 5 Mansfield Street London W1G 9NG

  26/00954/ADFULL Submitted 16 Feb 2026 50 yards away

  Detailed specifications, and drawings at 1:10 with full size details, of refurbishment works to the windows, and of detailed drawings at 1: 10 with full size sections through the glazing bars of the new sash windows and French windows pursuant to condition 6 of planning permission dated 5th September 2024 (RN:24/01895/FULL)

  Granted Full applications Windows or glazing 41 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
• 26/04141/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
• 26/06288/LBC Awaiting decision

  Barness Court 6 - 8 Westbourne Terrace London W2 3UW

  Installation of a new riser as per GW10 design comprising a single riser with 7 entries and 9 Taylor valves to be installed. (Linked with 26/06287/FULL)

  Received 14 Sep, published by the council 21 Sep 2026 Heritage and listed buildings
• 26/06270/LBC Awaiting decision

  Maisonette Basement And Ground Floor 101 Hereford Road London W2 5BB

  Amalgamation of existing lower ground and ground floor maisonette with the first floor flat to create a single dwelling and associated internal works including creation of a staircase. (Linked with 26/06269/FULL)

  Received 14 Sep, published by the council 21 Sep 2026 Heritage and listed buildings
• 26/06230/LBC Awaiting decision

  10 Bedford Street London WC2E 9HE

  Internal redecoration/refurbishment to the existing Caffe Nero including redecorating throughout, replacing the tiled floor in the customer area, raising the timber floor by 180mm on the left-hand side upon entry to bring interest to the area, for the existing large, boxed window cils on right-hand side upon entry; the one on the far right will be removed to give way for more seating, with the other being adapted to allow for leg space below, and two bespoke decorative chandeliers to be hung in the customer area which will be installed with structural engineer approval.

  Received 11 Sep, published by the council 21 Sep 2026 Heritage and listed buildings