46 Eaton Place London SW1X 8AL

1. 27 Jun 2025

   Received by Westminster

2. 17 Mar 2026

   Decision issued: Application Permitted

3. 30 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.

More on heritage and listed buildings applications in our guide

• 46 Eaton Place London SW1X 8AL

  25/04439/FULL Submitted 27 Jun 2025 5m away

  Erection of extensions at rear lower-ground, ground, first and second floor levels with roof terrace at rear first floor level; replacement mansard roof and facade alterations to mews building; basement extension; roof terrace, plant enclosure and lift overrun at main roof level. Change of use from embassy to two dwellings (Site includes 20 Eaton Mews North).

  Granted Full applications Extension Loft or dormer 144 docs
  Several homes

• 46 Eaton Place London SW1X 8AL

  25/09311/CLOPUD Submitted 23 Dec 2025 7m away

  Confirmation that the planning permission dated 26th April 2023 (RN: 22/05260/FULL) for the 'Use of existing buildings as two separate dwellings with associated alterations and extensions, including new rear courtyard with green living wall at lower ground and ground floor levels, creation of roof terraces at rear upper ground floor and main roof levels, alterations to terrace at first floor level, replacement rear closet wing extension at first and second floor levels, replacement of mansard roof, and replacement of windows and doors on all elevations (site includes 20 Eaton Mews North)' was lawfully implemented prior to the expiration date and that it is lawful to complete the outstanding works.

  Granted Lawful development Extension Loft or dormer +1 13 docs

• 52 Eaton Place London SW1X 8AL

  26/02230/ADLBC Submitted 2 Apr 2026 10m away

  90% historically approved · decision due ~28 May

  Detailed elevations and section of the front door and its surrounds, pursuant to condition 4 of Listed Building Consent dated 25th September 2025 (25/05109/LBC)

  Awaiting decision Conditions 4 docs

• 52 Eaton Place London SW1X 8AL

  25/08102/ADFULL Submitted 6 Nov 2025 10m away

  87% historically approved · decision due ~8 Jan

  Details of the front door pursuant to Condition 4 of planning permission dated 25th September 2025 (RN: 25/05108/FULL).

  Awaiting decision Full applications 6 docs

• 52 Eaton Place London SW1X 8AL

  26/05674/NMA Submitted 19 Aug 2026 10m away

  92% historically approved · decision due ~14 Oct

  Amendments to planning permission dated 25 September 2025 (25/05108/FULL) for: Alterations to rear extension at first floor level including creation of rear roof terrace at second floor level; replacement of first and second floor level front windows with double glazed timber sash windows; replacement of front door; reinstatement of period windows and doors namely, to allow replacement of second floor rear full height sash window with set of french doors.

  Awaiting decision Amendments Extension Windows or glazing

• 52 Eaton Place London SW1X 8AL

  25/05109/LBC Submitted 22 Jul 2025 22m away

  Alterations to rear extension at first floor level including creation of rear roof terrace at second floor level; replacement of first and second floor level front windows with double glazed timber sash windows; replacement of front door; reinstatement of period windows and doors to first floor flat, second floor flat, and the common parts; and, internal alterations to the first floor flat, second floor flat, and common parts.

  Granted Heritage and listed buildings Extension Windows or glazing 35 docs

• 26/06025/LBC Awaiting decision

  House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

  Installation of new and replacement electronic equipment within Speaker?s Green

  3 Sep 2026 Heritage and listed buildings
• 26/05971/LBC Awaiting decision

  House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

  Automation of door at principal floor level.

  1 Sep 2026 Heritage and listed buildings
• 26/05911/LBC Awaiting decision

  74 Eaton Place London SW1X 8AU

  Waterproofing works to the basement, comprising the removal of existing plaster and replacement with a waterproofing plaster.

  28 Aug 2026 Heritage and listed buildings
• 26/05916/LBC Awaiting decision

  Noel Coward Theatre 85 - 89 St Martin's Lane London WC2N 4AU

  Installation of internally illuminated fascia sign measuring 0.41m x 5.74m. (Linked with 26/05912/ADV).

  28 Aug 2026 Heritage and listed buildings
• 26/05891/LBC Awaiting decision

  Flat 1 109 Eaton Square London SW1W 9AA

  Installation of external AC condenser units and plant within the existing under-pavement vaults to the front of the property at lower ground floor level; internal refurbishment and reconfiguration of the ground and lower ground floors, including rationalisation of internal layouts, replacement of the existing spiral staircase and balustrade/handrail, replacement of internal architectural details and restoration/reinstatement of surviving and/or concealed historical features; and associated works. (Linked with 26/05890/FULL)

  27 Aug 2026 Heritage and listed buildings