31 Percy Street London W1T 2DD

This site has had 4 applications since 2011: 2 approved, 1 refused.

• 2013/7572/P Granted

  31 Percy Street London W1T 2DD

  Erection of part one, part two storey lower ground floor rear extension to form 2 bedroom maisonette (Class C3) following demolition of existing single storey lower ground floor rear extension and associated excavation.

  Decided 17 Oct 2014 Full applications
• 2013/4963/P Granted

  31 Percy Street London W1T 2DD

  Rear extension at ground and 1st floor (Class B1a office use).

  Decided 18 Oct 2013 Full applications
• 2011/5047/P Refused

  31 Percy Street London W1T 2DD

  Cantilevered extension at rear first floor level of the existing office.

  Decided 18 Nov 2011 Full applications

1. 23 Apr 2026

   Received by Camden

2. 29 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 24 June 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Camden took a median of 42 days over the applications it decided in the last year.

This application is with Camden for determination, against a statutory target of eight weeks. Over the last year Camden decided full applications in a median of 56 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.

• 31 Percy Street London W1T2DD

  2010/4227/P 50 yards away

  Cantilevered extension at rear first floor level of the existing office.

  Refused Full applications Extension

• 31 Percy Street London W1T 2DD

  2013/7572/P 50 yards away

  Erection of part one, part two storey lower ground floor rear extension to form 2 bedroom maisonette (Class C3) following demolition of existing single storey lower ground floor rear extension and associated excavation.

  Granted Full applications Extension Demolition
  Small domestic

• Offices And Premises At Basement 31 Percy Street London W1T 2DD

  2019/6446/A 50 yards away

  Display of non-illuminated hanging sign.

  Granted

• 31 Percy Street London W1T 2DD

  2011/5047/P 50 yards away

  Cantilevered extension at rear first floor level of the existing office.

  Refused Full applications Extension

• 31 Percy Street London W1T 2DD

  2013/4963/P 50 yards away

  Rear extension at ground and 1st floor (Class B1a office use).

  Granted Full applications Extension

• 30 Percy Street London W1T 2DB

  2021/4408/P 50 yards away

  Amendment to planning permission ref 2019/4241/P dated 28/08/2020, as amended by ref 2021/1374/P dated 13/08/2021 (for External alterations including replacement rear extension at ground floor and basement level with roof terrace above, change of use of existing flat at second and third floor level to office space and use of basement level as social enterprise space), namely to replace a small glazed area within the basement roof of the approved rear extension by a solid floor.

  Granted Full applications Extension Windows or glazing

• 2026/0369/P Granted

  Railway embankment and land west of 49 Adelaide Road London NW3 3QB

  Installation of a new DNO (Distribution Network Operator) cabinet and erection secure access gate to Adelaide Road, erection of staircase to railway embankment, associated works.

  Received 17 Jul, published by the council 24 Jul 2026 Full applications
• 2026/3694/P Granted

  19 Charterhouse Street London EC1N 6RA

  Details pursuant to condition 19 (external lighting) of planning permission 2025/1683/P, granted subject to a legal agreement on 05/06/2026, for remodelling, refurbishment and extensions (including 3 additional storeys) of the existing building to provide Use Class E (commercial, retail/restaurant and jewellery workspace) and associated landscaping and facade works.

  Received 27 Aug, published by the council 5 Sep 2026 Full applications
• 2026/3904/P Granted

  14 Templewood Avenue London NW3 7XA

  Details pursuant to Condition 5 (Tree protection measures) of planning permission 2026/2315/P dated 10/08/2026 for "Erection of an orangery/outbuilding in the rear garden."

  Received 9 Sep, published by the council 11 Sep 2026 Full applications
• 2025/2002/P Granted

  11 Doughty Street London WC1N 2PL

  Change of use from office (Class E) to residential to form a single-family dwelling (Class C3); associated internal and external alterations

  Received 9 May, published by the council 22 Jul 2026 Full applications
• 2026/3551/P Granted

  19 Charterhouse Street London EC1N 6RA

  Details pursuant to condition 21 (Details of gates/barriers onto Charterhouse Street) of planning permission 2025/1683/P, granted subject to a legal agreement on 05/06/2026, for remodelling, refurbishment and extensions (including 3 additional storeys) of the existing building to provide Use Class E (commercial, retail/restaurant and jewellery workspace) and associated landscaping and facade works.

  Received 19 Aug, published by the council 22 Aug 2026 Full applications