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• 25/05100/LBC Withdrawn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• 25/05099/FULL Withdrawn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

  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 lawful use.

  Granted Lawful development 25 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

• 26/07509/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
• 26/07471/LBC Awaiting decision

  12 Queen Anne's Gate London SW1H 9AA

  Excavation of single-storey basement, internal reconfiguration, installation of modern services and associated works. (Linked with 26/07470/FULL)

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07461/LBC Awaiting decision

  1 Savile Row London W1S 3JR

  Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07442/LBC Awaiting decision

  2 Charing Cross Road London WC2H 0HH

  Installation of festoon lights to the front elevation from top of existing columns to canopy fascia level including installation of perimeter lightbox to main top sign and coloured light to columns.

  Received 2 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07445/LBC Awaiting decision

  29 Gloucester Place London W1U 8HT

  Installation of glazed partitions and door sets to form meeting rooms on 2nd , 3rd and 4th floor offices.

  Received 2 Nov, published by the council 5 Nov 2026 Heritage and listed buildings