31 Percy Street London W1T 2DD

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

• 2026/1635/P Awaiting decision

  31 Percy Street London W1T 2DD

  Erection of replacement ground floor rear extension to provide additional office floorspace, formation of roof terrace at first floor level, minor external alterations to rear elevation and a new condenser unit at roof terrace level. (APPLICATION TRANSFERRED TO OSDC FOR DETERMINATION)

  Submitted 23 Apr 2026 Full applications
• 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
• 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. 18 Oct 2013

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 18 October 2013, 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.

• 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

  2026/1635/P Submitted 23 Apr 2026 50 yards away

  91% historically approved · decision due ~24 Jun

  Erection of replacement ground floor rear extension to provide additional office floorspace, formation of roof terrace at first floor level, minor external alterations to rear elevation and a new condenser unit at roof terrace level. (APPLICATION TRANSFERRED TO OSDC FOR DETERMINATION)

  Awaiting decision Full applications Extension 29 docs

• 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

• 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