1 Dean Trench Street London SW1P 3HB

1. 8 Aug 2025

   Received by Westminster

2. 18 Aug 2025

   Validated

   Checked as complete and ready for consideration.

3. 8 Sep 2025

   Decision issued: Application Permitted

4. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 8 September 2025, 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.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

• 29 Tufton Street London SW1P 3QL

  04/02346/FULL Submitted 25 Mar 2004 50 yards away

  Replacement of six first floor metal framed windows with white steel framed double glazed units in same configuration.

  Granted Full applications Windows or glazing 7 docs

• 55 Tufton Street London SW1P 3QL

  04/01326/CAC Submitted 23 Feb 2004 50 yards away

  Installation of a lift for disabled access purposes. Modification of access steps and fire escape stairs to basement lightwell. Provision of new gates within railings.

  Decided Heritage and listed buildings 7 docs

• 55 Tufton Street London SW1P 3QL

  04/01325/FULL Submitted 23 Feb 2004 50 yards away

  Alterations to front entrance including, modifications to steps, installation of disabled access lift, new fire escape stairs to basement lightwell and gates within railings.

  Withdrawn Full applications 9 docs

• 29 Tufton Street London SW1P 3QL

  07/10810/FULL Submitted 11 Dec 2007 50 yards away

  Alterations and extensions, including a roof extension, in connection with the use as a single family dwelling house.

  Granted Full applications Extension 23 docs
  Domestic

• 29 Tufton Street London SW1P 3QL

  10/09237/FULL Submitted 25 Oct 2010 50 yards away

  Variation of Condition 7 of planning permission (RN: 07/10810) dated 10 December 2007 (as amended by 10/07674/NMA dated 20 October 2010) for alterations and extensions, including a roof extension in connection with the use as a single family dwellinghouse; namely, changes to drawing numbers to show minor material alterations to roof height, lift overrun height, addition of green roof and addition of roof light.

  Granted Full applications Extension Loft or dormer 12 docs
  Domestic

• 29 Tufton Street London SW1P 3QL

  10/06867/ADFULL Submitted 9 Aug 2010 50 yards away

  Details of new windows and doors pursuant to Condition 1 of planning permission dated 12 June 2008 (RN:07/10810).

  Granted Full applications Windows or glazing 9 docs

• 26/04860/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Details of external and internal signage strategy pursuant to Condition 7(E) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/04843/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Detailed design and specification of new blinds to NZH based on mock-up trials on-site pursuant to Condition 6(m) of listed building consent dated 12th February 2021 (19/07816/LBC).

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/05026/ADLBC Awaiting decision

  St James's Park The Mall London SW1A 1AA

  Details of method statement for re-carving works pursuant to condition 3(i) of listed building consent dated 16 July 2026 (RN: 26/03399/LBC)

  Received 27 Jul, published by the council 4 Aug 2026 Conditions
• 26/04850/ADLBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawings of garage doors, roof lantern and any new lighting and flooring in the principal rooms pursuant to condition 6 (iii) (iv) (v) of listed building 18th August 2025 (RN:25/03417/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 25/07120/ADLBC Granted

  72 - 74 Lancaster Gate London W2 3NH

  Details of new and altered doors and door architraves, including external faces of lifts (detailed elevations and sections at 1:10) pursuant to Condition 3 (A) of Listed Building Consent dated 14 December 2023 (RN: 23/00772/LBC) (Linked app: 25/07088/ADFULL)

  Received 2 Oct, published by the council 21 Jul 2026 Conditions