Trevor House 20 Belgrave Place London SW1X 8BS

This site has had 2 applications since 2004: 1 approved, 0 refused.

• 04/05669/FULL Withdrawn

  Trevor House 20 Belgrave Place London SW1X 8BS

  Erection of extension at rear second floor level, erection of mansard roof extension (including roof terrace behind mansard slope), raising of existing parapet and installation of bottle balustrading.

  Decided 27 Aug 2004 Full applications

1. 18 Mar 2005

   Received by Westminster

2. 28 Apr 2005

   Decision issued: Application Permitted

3. 20 Aug 2026

   Added to PlanIndex

Westminster granted permission on 28 April 2005, 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Flat 1 To 2 17 Belgrave Place London SW1X 8BS

  22/04202/ADLBC Submitted 27 Jun 2022 50 yards away

  Detailed plans, elevations and sections of the new rooflight pursuant to Condition 3 (a) of listed building permission dated 28 September 2020 (RN:20/04586/LBC).

  Granted Conditions Loft or dormer 8 docs

• Flat 3 17 Belgrave Place London SW1X 8BS

  26/01958/LBC Submitted 25 Mar 2026 50 yards away

  90% historically approved · decision due ~20 May

  Alterations and refurbishment comprising removal of partitions on ground and first floor, erection of new partitions on first floor and replacement of internal staircase.

  Awaiting decision Heritage and listed buildings 14 docs

• Flat 1 To 2 17 Belgrave Place London SW1X 8BS

  07/10363/LBC Submitted 28 Nov 2007 50 yards away

  Installation of air conditioning condenser in pavement vault and replacing solid doors to lightwell with louvred doors.

  Granted Heritage and listed buildings 7 docs

• 17 Belgrave Place London SW1X 8BS

  07/06599/FULL Submitted 26 Jul 2007 50 yards away

  Use of first floor flat roof as roof terrace.

  Granted Full applications 21 docs

• Flat 1 To 2 17 Belgrave Place London SW1X 8BS

  23/06158/ADFULL Submitted 5 Sep 2023 50 yards away

  Detailed drawings of a hard and soft landscaping scheme and Planting Management Plan pursuant to condition 4 and 5 of planning permission dated 21st October 2024 (RN 22/04218/FULL)

  Granted Full applications 12 docs

• 17 Belgrave Place London SW1X 8BS

  07/06600/LBC Submitted 26 Jul 2007 50 yards away

  Use of first floor flat roof as roof terrace and internal refurbishment included alterations to staircase and partitions.

  Granted Heritage and listed buildings 2 docs

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications