Hesketh House 43 - 45 Portman Square London W1H 6LY

1. 22 Dec 2006

   Received by Westminster

2. 15 Feb 2007

   Decision issued: Application Withdrawn

3. 30 Aug 2026

   Added to PlanIndex

The applicant withdrew this application before Westminster decided it, and is free to submit a revised scheme at any time. 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.

• 43 - 45 Portman Square London W1H 6LY

  06/00987/AD7 Submitted 9 Feb 2006 50 yards away

  Display of non-illuminated estate agent board measuring 600mm x 450mm to be attached to the railings in front of the building at a height of 1.5m from ground floor level, for a temporary period of 6 months.

  Granted Advertising 3 docs

• 43 - 45 Portman Square London W1H 6LY

  04/09146/AD7 Submitted 18 Nov 2004 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.

  Granted Advertising 3 docs

• 43 - 45 Portman Square London W1H 6LY

  25/03065/ADFULL Submitted 2 May 2025 50 yards away

  88% historically approved · decision due ~27 Jun

  Details of accurate and verified estimates of the 'Be Seen' energy performance indicators for the Development as outlined in chapter 3 (Planning Stage) of the Be Seen Guidance pursuant to Condition 33 (A) of planning permission dated 7th April 2025 (RN:24/04987/FULL)

  Awaiting decision Full applications 7 docs

• 43 - 45 Portman Square London W1H 6LY

  05/10346/AD7 Submitted 22 Dec 2005 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6m x 0.45m.

  Granted Advertising 2 docs

• 43 - 45 Portman Square London W1H 6LY

  26/04951/NMA Submitted 23 Jul 2026 50 yards away

  93% historically approved · decision due ~17 Sep

  Amendments to planning permission dated 22 April 2026 (Ref: 25/06153/FULL) for, 'Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works'; NAMELY, to amend the wording of Condition 27 to allow basement demolition work to proceed in advance of sustaianble drainage construction drawings being approved.

  Decided Amendments Extension Demolition

• 43 - 45 Portman Square London W1H 6LY

  26/04721/ADFULL Submitted 15 Jul 2026 50 yards away

  89% historically approved · decision due ~9 Sep

  Details of accurate and verified estimates of the 'Be Seen' energy performance indicators for the Development as outlined in chapter 3 (Planning Stage) of the Be Seen Guidance pursuant to condition 33 (A) of planning permission dated 7th April 2025 (RN:24/04987/FULL)

  Decided 7 docs

• 26/05708/FULL Decided

  Flat 23 Imperial Court 55 - 56 Prince Albert Road London NW8 7PT

  Replacement of existing windows and louvres.

  Received 20 Aug, published by the council 18 Sep 2026 Full applications
• 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
• 26/07229/FULL Awaiting decision

  5 D'arblay Street London W1F 8DL

  Alterations to the existing fixed windows to form two openable sash windows. (Linked with 26/07230/ADV)

  Received 22 Oct, published by the council 26 Oct 2026 Full applications
• 26/07224/FULL Awaiting decision

  8 Hinde Street London W1U 3BQ

  Use of the building as an Embassy (sui generis) with reversion to Class E on cessation of occupation by the Government of the United Mexican States. Erection of a flagpole to front elevation.

  Received 22 Oct, published by the council 26 Oct 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