Sentinel House 16 Harcourt Street London W1H 4AD

This site has had 2 applications since 2006: 2 approved, 0 refused.

• 07/09566/CLEUD Granted

  Sentinel House 16 Harcourt Street London W1H 4AD

  Use of the sixth floor as offices (Class B1).

  Decided 13 Dec 2007 Lawful development

1. 22 Jun 2006

   Received by Westminster

2. 7 Jul 2006

   Validated

   Checked as complete and ready for consideration.

3. 31 Aug 2006

   Decision issued: Application Permitted

4. 20 Aug 2026

   Added to PlanIndex

Westminster granted permission on 31 August 2006, 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.

• Sentinel House 16 Harcourt Street London W1H 4AD

  07/09566/CLEUD Submitted 2 Nov 2007 50 yards away

  Use of the sixth floor as offices (Class B1).

  Granted Lawful development 4 docs

• Sentinel House 193 - 197 Old Marylebone Road London W1H 4AD

  07/04848/TPO Submitted 30 May 2007 50 yards away

  1 x London Plane (T1) (Front): Prune back off building 2m clear.

  Granted Trees 1 doc

• 12 - 14 Harcourt Street London W1H 4HD

  06/06031/ADFULL Submitted 28 Jul 2006 50 yards away

  Details of rolled lead roof to approved extension pursuant to Condition 4 of planning permission dated 08 June 2006 (RN: 06/00236).

  Granted Full applications Extension 2 docs

• 12 - 14 Harcourt Street London W1H 4HD

  26/02158/ADV Submitted 31 Mar 2026 50 yards away

  82% historically approved · decision due ~26 May

  Display of two non-illuminated fascia signs measuring 0.31m x 1.98m and 0.46m x 3m. [Linked to 26/02157/FULL]

  Awaiting decision Advertising 1 doc

• 12 - 14 Harcourt Street London W1H 4HD

  26/02157/FULL Submitted 31 Mar 2026 50 yards away

  88% historically approved · decision due ~26 May

  Extension of and improvements to the existing ground floor terrace to the rear, modification to entrances, installation of security access gate, other associated external works and the installation of new signage. [Linked to 26/02158/ADV]

  Awaiting decision Full applications Extension 1 doc

• 12 - 14 Harcourt Street London W1H 4HD

  06/00236/FULL Submitted 12 Jan 2006 50 yards away

  Extension of rear second and third floors to provide additional office space (Class B1) and creation of a terrace area to the rear and side of the first floor. Installation of three air conditioning units to the rear first floor level.

  Granted Full applications Extension 11 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