15 St Mark's Crescent London NW1 7TS

1. 15 Sep 2017

   Decision issued: Refused

2. 22 Jul 2026

   Added to PlanIndex

This application is at appeal, which passes the decision from Camden to the planning inspectorate, and the outcome will replace the council's decision. 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.

• Lower Ground Flat 15 St Mark's Crescent London NW1 7TS

  2012/2515/P 0m away

  Erection of a single storey rear extension with roof terrace over enclosed by metal railings and replacement of existing lower ground floor level front window with french doors and alterations to window at rear ground floor level all in connection with existing flat (Class 3).

  Granted Full applications Extension Windows or glazing
  Small domestic

• Flat lower and Ground Floor 15 St Mark's Crescent LONDON NW1 7TS

  2018/0368/P 0m away

  Variation of condition 3 (approved plans) of planning permission 2012/2515/P dated 9th July 2012 for: Erection of a single storey rear extension with roof terrace over enclosed by metal railings and replacement of existing lower ground floor level front window with French doors and alterations to window at rear ground floor level all in connection with existing flat (Class 3). Namely, increased in width of the rear lower-ground floor extension, replacement of the sliding/folding and replacement of the metal balustrade at ground floor level (retrospective).

  Granted Full applications Extension Windows or glazing
  Small domestic

• Garden Flat 15 St Mark's Crescent London NW1 7TS

  2010/5629/P 0m away

  Alterations and extensions including new basement extension with rear lightwell, erection of rear extension at lower ground floor level, and extension into front lightwell all in connection with existing garden flat (Class C3).

  Withdrawn Full applications Extension

• Flat 1st and 2nd Floor 15 St Mark's Crescent London NW1 7TS

  2017/1604/P 0m away

  Replacement of rear first floor window with double doors and erection of balustrade to roof of bay window.

  Withdrawn Full applications Windows or glazing

• 16 St Mark's Crescent London NW1 7TS

  2021/2364/P 4m away

  Demolition and rebuilding of a garden retaining wall. New wall to be structurally reinforced and built using reclaimed bricks.

  Granted Full applications Demolition

• 14 St Marks Crescent London NW1 7TS

  2014/2971/T 9m away

  (TPO Ref: C21) REAR GARDEN: 1 x Sycamore - Removal of lower epicormic growth and thin crown by 10%.

  Granted Trees

• 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