74 Park Street London W1K 2JX

This site has had 4 applications since 2003: 0 approved, 2 refused.

• 26/02614/ADLBC Awaiting decision

  74 Park Street London W1K 2JX

  Details of new dormer windows / samples of welsh roofing slate and york stone / rear courtyard paved in york stone and lead sheet cladding to dormer windows and top of mansard pursuant to condition 2, 3 and 4 of listed building consent dated 25 October 2010 (RN: 10/07318/LBC) [Linked to 26/02529/ADFULL]

  Submitted 17 Apr 2026 Conditions
• 03/05638/FULL Refused

  74 Park Street London W1K 2JX

  Demolition of existing roof and erection of mansard roof extension to create additional residential accommodation in connection with existing single family dwelling.

  Decided 11 Sep 2003 Full applications
• 03/05639/LBC Refused

  74 Park Street London W1K 2JX

  Demolition of existing roof and erection of mansard roof extension to create additional residential accommodation in connection with existing single family dwelling.

  Decided 11 Sep 2003 Heritage and listed buildings

1. 17 Apr 2026

   Received by Westminster

2. 15 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 10 July 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 66 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.

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.

• 74 Park Street London W1K 2JX

  03/05638/FULL Submitted 18 Jul 2003 50 yards away

  Demolition of existing roof and erection of mansard roof extension to create additional residential accommodation in connection with existing single family dwelling.

  Refused Full applications Extension Loft or dormer +1 7 docs
  Domestic

• 74 Park Street London W1K 2JX

  03/05639/LBC Submitted 18 Jul 2003 50 yards away

  Demolition of existing roof and erection of mansard roof extension to create additional residential accommodation in connection with existing single family dwelling.

  Refused Heritage and listed buildings Extension Loft or dormer +1 2 docs
  Domestic

• 74 Park Street London W1K 2JX

  26/02614/ADLBC Submitted 17 Apr 2026 50 yards away

  90% historically approved · decision due ~22 Jun

  Details of new dormer windows / samples of welsh roofing slate and york stone / rear courtyard paved in york stone and lead sheet cladding to dormer windows and top of mansard pursuant to condition 2, 3 and 4 of listed building consent dated 25 October 2010 (RN: 10/07318/LBC) [Linked to 26/02529/ADFULL]

  Awaiting decision Conditions Loft or dormer Windows or glazing 5 docs

• 70 Park Street London W1K 2JT

  25/08073/ADFULL Submitted 6 Nov 2025 50 yards away

  87% historically approved · decision due ~1 Jan

  Detailed drawings of the metal steps for the front lightwell stairs pursuant to partial discharge of condition 4(e) of planning permission dated 25th January 2023 (RN:22/07391/FULL).

  Awaiting decision Full applications 1 doc

• 70 Park Street London W1K 2JT

  25/08035/ADLBC Submitted 5 Nov 2025 50 yards away

  90% historically approved · decision due ~31 Dec

  Detailed drawings of metal steps pursuant to condition 3 (g) of listed building consent dated 25th January 2023 (RN:22/07392).

  Awaiting decision Conditions 4 docs

• 70 Park Street London W1K 2JT

  26/01058/CLEUD Submitted 19 Feb 2026 50 yards away

  Confirmation that planning permission 22/07391/FULL dated 25th January 2023 has been lawfully implemented by virtue of demolition of existing metal staircase at the site on 22nd January 2026.

  Granted Lawful development Demolition 13 docs

• 26/06331/FULL Awaiting decision

  31G Nottingham Place London W1U 5LP

  Installation of a condenser within acoustic enclosure and metal railing on the rear flat roof at third-floor level.

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06328/FULL Awaiting decision

  Athena Court 2 Finchley Road London NW8 6DP

  Installation of a multifunctional communication Hub including defibrillator outside Athena Court. (Linked with 26/06329/ADV)

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06340/FULL Awaiting decision

  141 Harley Street London W1G 6BQ

  Variation of Condition 1 of planning permission dated 22 December 2026 (RN: 16/05372/FULL) for: Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and ground floor link building at the rear of 141 Harley Street and the erection of new building to include a three storey basement to the rear of the site in connection with the use of the 141 Harley Street and the lower ground and ground floor of 143 Harley Street for Class D1 medical purposes; installation of a new passenger lift to the rear of 141 Harley Street and installation of plant. (Site includes excavation part way under the pavement of Devonshire Mews West and use swap with 126 Harley Street) namely, to allow creation of party wall openings at basement, ground and first floors; insertion of a platform lift within No. 143 from basement to first floors; partial infilling of the rear basement area; and other minor adjustments to plan form. (Linked with 26/06290/LBC)

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06341/FULL Awaiting decision

  141 Harley Street London W1G 6BQ

  Installation of new sesame lift into existing front entrance steps. (Linked with 26/06342/LBC)

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront with Medication Dispensing Outlet.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications