Unit D Imperial Works Perren Street London NW3 3ED

This site has had 4 applications since 2011: 3 approved, 0 refused.

• 2015/1077/P Granted

  Unit D Imperial Works Perren Street London NW3 3ED

  Amendment to planning application granted under ref 2011/0382/P dated 22/03/11, namely alteration to window location and dimensions on west and east elevations, inclusion of additional downpipe to east elevation and inclusion of vent louvers on east and west elevations.

  Decided 20 Mar 2015 Full applications
• 2013/8261/P Withdrawn

  Unit D Imperial Works Perren Street London NW3 3ED

  Renewal of planning permission 2011/0382/P granted on 22/03/2011 for amendment to planning permission PEX0200895 dated 8/04/03 for the construction of an additional storey above two-storey building for office use (class B1), new external staircase and minor alterations relating to the use of the second floor as self-contained flat (Class C3).

  Decided 19 Feb 2014 Full applications
• 2011/0382/P Granted

  Unit D Imperial Works Perren Street London NW3 3ED

  Renewal of planning permission 2007/5966/P granted on 29/01/07 for amendment to planning permission PEX0200895 dated 8/04/03 for the construction of an additional storey above two-storey building for office use (class B1), new external staircase and minor alterations relating to the use of the second floor as self-contained flat (class C3).

  Decided 22 Mar 2011 Full applications

1. 5 Dec 2014

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

• 2011/0382/P Granted

  Unit D Imperial Works Perren Street London NW3 3ED

  Renewal of planning permission 2007/5966/P granted on 29/01/07 for amendment to planning permission PEX0200895 dated 8/04/03 for the construction of an additional storey above two-storey building for office use (class B1), new external staircase and minor alterations relating to the use of the second floor as self-contained flat (class C3).

  Decided 22 Mar 2011 Full applications

Camden granted permission on 5 December 2014, 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.

• Block C Imperial Works Perren Street London NW5 3ED

  2015/7064/P 0m away

  Details acoustic levels required by condition 4 of planning permission 2015/3734/P dated 01/10/2015 for external alterations to building including replacement windows, removal of chimney stack and lourvered ventilation openings to plant room.

  Granted Full applications Windows or glazing

• Block C Imperial Works Perren Street NW5 3ED

  2015/5442/P 0m away

  Details of windows and facing materials required by Condition 4 of planning permission 2014/7951/P dated 16/09/2015 for erection of a roof extension to the existing office building to provide additional office floorspace.

  Granted Full applications Extension Windows or glazing

• Block C Imperial Works Perren Street London NW5 3ED

  2014/7951/P 0m away

  Erection of a roof extension to the existing office building (B1(a)) to provide additional office (B1(a)) floorspace.

  Granted Full applications Extension

• Unit D Imperial Works Perren Street London NW3 3ED

  2015/1077/P 0m away

  Amendment to planning application granted under ref 2011/0382/P dated 22/03/11, namely alteration to window location and dimensions on west and east elevations, inclusion of additional downpipe to east elevation and inclusion of vent louvers on east and west elevations.

  Granted Full applications Windows or glazing

• Imperial Works Perren Street London NW5 3ED

  2015/5646/P 0m away

  Details of green roof required by condition 5 of planning permission granted on 16/09/2015 (ref: 2014/7951/P for the erection of a roof extension to the existing office building (B1(a)) to provide additional office (B1(a)) floorspace.)

  Granted Full applications Extension

• Imperial Works Perren Street NW5 3ED

  2015/3734/P 0m away

  External alterations to building including replacement windows, removal of chimney stack and lourvered ventilation openings to plant room.

  Granted Full applications Windows or glazing

• 2026/2471/P Granted

  Flat A 26 Eton Avenue London NW3 3HL

  Proposed elevational alterations to side and rear of the garden flat.

  15 Jun 2026 Full applications
• 2026/2467/P Granted

  42 Mornington Terrace London Camden NW1 7RT

  Replacement door and window at lower ground floor level to rear outrigger and installation of sandstone steps in rear garden.

  12 Jun 2026 Full applications
• 2026/2424/P Granted

  British Museum Great Russell Street London WC1B 3DG

  Details of SUDS system evidence required by Condition 10 of planning permission ref 2023/1848/P dated 17/07/2024 for Erection of new two storey building, plus basement and associated works to provide plant and welfare accommodation ancillary to the Museum following demolition of existing building and two storey structures on East Road (to the rear of 9-11 Montague Street and 43 Russell Square)

  11 Jun 2026 Full applications
• 2026/3888/P Awaiting decision

  Unit A, Ground Floor West 3-5 Bleeding Heart Yard London EC1N 8SJ

  Replace solid metal ground floor entrance door with glazed entrance door (Retrospective).

  9 Sep 2026 Full applications
• 2026/3903/P Awaiting decision

  2 Fellows Road London NW3 3LP

  Details pursuant to Condition 4 (Materials Details) of planning permission ref. 2026/2123/P (dated 21/07/2026) for: Amalgamation of existing two flats into one single dwellinghouse (Class C3); garage conversion to habitable space; infill extension at front lower ground and ground floors; minor changes to fenestration at rear; erection of copper roof extension with rooflight to existing rear extension; replacement terrace railings; installation of rooflight to main roof; new front boundary railings and gates; refurbishment of front steps; rear garden landscaping works; and associated exterior alterations.

  9 Sep 2026 Full applications