46 Delancey Street London NW1 7RY

This site has had 2 applications since 2012: 2 approved, 0 refused.

• 2012/5487/P Granted

  46 Delancey Street London NW1 7RY

  Erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, and lowering of basement floor level by 360mm all in connection with existing dwellinghouse (Class C3).

  Decided 20 Dec 2012 Full applications

1. 20 Dec 2012

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

1 later application on the register refers to this one:

• 2013/2897/L Granted

  46 Delancey Street NW1 7RY

  Details of new windows (condition 4a), doors (4b), samples of materials (4c) and building control upgrading works (4d) of listed building consent granted on 20/12/2012 (ref. 2012/5490/L)for refurbishment of existing dwellinghouse including the erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, lowering of basement floor level by 360mm (Class C3).

  Decided 17 Jul 2013 Heritage and listed buildings

Camden granted permission on 20 December 2012, 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.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• 46 Delancey Street London NW1 7RY

  2012/5487/P 0m away

  Erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, and lowering of basement floor level by 360mm all in connection with existing dwellinghouse (Class C3).

  Granted Full applications Extension Loft or dormer +2
  Small domestic

• 46 Delancey Street NW1 7RY

  2013/2897/L 0m away

  Details of new windows (condition 4a), doors (4b), samples of materials (4c) and building control upgrading works (4d) of listed building consent granted on 20/12/2012 (ref. 2012/5490/L)for refurbishment of existing dwellinghouse including the erection of new mansard roof extension, installation of new staircase from ground floor to garden (following demolition of existing rear lean to conservatory), alterations to fenestration, lowering of basement floor level by 360mm (Class C3).

  Granted Heritage and listed buildings Extension Loft or dormer +2
  Small domestic

• Flat A 44 Delancey Street London NW1 7RY

  2019/5219/L 5m away

  Installation of temporary internal secondary glazing to one window to the front elevation at basement level for noise mitigation works during construction of the HS2 railway.

  Granted Heritage and listed buildings Windows or glazing

• 48 Delancey Street London NW1 7RY

  2015/2523/P 6m away

  Addition of railings to rear extension to create 1st floor terrace and alterations to adjacent sash window.

  Granted Full applications Extension Windows or glazing

• 48 Delancey Street London NW1 7RY

  2014/7172/P 6m away

  Erection of mansard roof, rear first floor closet wing extension, ground floor and basement floor level glazed infill extension and associated elevational alterations.

  Granted Full applications Extension Loft or dormer +1

• 48 Delancey Street London NW1 7RY

  2014/7263/L 6m away

  Internal and external alterations associated with the erection of a mansard roof, rear first floor closet wing extension, ground floor and basement floor level glazed infill extension and associated elevational alterations.

  Granted Heritage and listed buildings Extension Loft or dormer +1

• 2026/0825/L Granted

  88 Frognal London NW3 6XB

  Discharge of condition 4 (a) Plan, elevation and section drawings of all new internal doors at a scale of 1:10 with typical moulding and architrave details at a scale of 1:1. b) Plan, elevation and section drawings, including jambs, head and cill, of all new windows and doors, including garage doors and windows, at a scale of 1:10 with typical glazing bar details at 1:1) of 2025/3436/L (External works comprising demolition of existing conservatory and erection of single-storey ground floor extension; demolition of existing garage and erection of replacement garage; alterations and repairs to roof; repair and minor alterations to building facade; provision of new hard and soft landscaping. Interior works comprising general remodelling works; minor changes to planform and openings; installation of new mechanical and electrical services throughout)

  2 Mar 2026 Heritage and listed buildings
• 2026/2946/L Awaiting decision

  Flat 1, 73 Eton Avenue London NW3 3EU

  Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.

  3 Sep 2026 Heritage and listed buildings
• 2026/3754/L Awaiting decision

  10 Great Ormond Street London Camden WC1N 3RB

  Coversion of 3 flats into 4 and internal alterations to the listed building

  2 Sep 2026 Heritage and listed buildings
• 2026/2194/L Withdrawn

  Dunboyne Road Estate Dunboyne Road London NW3 2YY

  Installation of Air Source and Water Source Heat Pumps in basement car park with associated acoustic and security enclosures; installation of PV Panels on roof of Blocks 1, 2 and 3; removal of existing gas boilers and associated plant; installation of a new estate-wide heating network including Heat Interface Units, radiators, pipework and associated infrastructure to serve Flats 1-71; excavation of trenches and installation of below-ground heating, water and electrical infrastructure; and associated ancillary works.

  29 May 2026 Heritage and listed buildings
• 2026/3773/L Awaiting decision

  47 Kelly Street London NW1 8PG

  Replacement of concrete roof tiles with slate roof tiles (Retrospective)

  28 Aug 2026 Heritage and listed buildings