42 Museum Street London WC1A 1LY

This site has had 6 applications since 2010: 6 approved, 0 refused.

• 2011/0910/L Granted

  42 Museum Street London WC1A 1LY

  Details pursuant to condition 3a (details of new railings), 3b (drawings of all new doors ), 3c (drawings of all new windows) and 3e (samples and manufacturer's details of new facing materials for the rear addition) of listed building consent 2010/2336/L for the internal alterations, demolition of an existing single storey rear addition and the erection of a two storey replacement rear extension associated with the change of use of the existing building from financial and professional services (Class A2) to basement and part ground floor (Class A1) retail unit with a 3 bedroom residential flat above (Class C3) and erection of a 1 bedroom residential dwelling house (Class C3), decided 22/06/2010.

  Decided 15 Apr 2011 Heritage and listed buildings
• 2011/0188/L Granted

  42 Museum Street London WC1A 1LY

  Demolition of a small section of the existing basement wall and insertion of a doorway in association with a basement extension.

  Decided 15 Mar 2011 Heritage and listed buildings
• 2011/0187/P Granted

  42 Museum Street London WC1A 1LY

  Extension to existing basement to create additional storage space to retail unit (Class A1).

  Decided 15 Mar 2011 Full applications
• 2010/2318/P Granted

  42 Museum Street London WC1A 1LY

  Change of use of existing building from financial and professional services (Class A2) to provide a retail unit at basement and part ground floor (Class A1), with a 3 bedroom residential flat above (Class C3), including the demolition of an existing single storey rear addition and the erection of a two storey replacement rear extension containing a 1 bedroom residential dwelling house (Class C3).

  Decided 25 Jun 2010 Full applications
• 2010/2336/L Granted

  42 Museum Street London WC1A 1LY

  Internal alterations, demolition of an existing single storey rear addition and the erection of a two storey replacement rear extension associated with the change of use of the existing building from financial and professional services (Class A2) to basement and part ground floor (Class A1) retail unit with a 3 bedroom residential flat above (Class C3) and erection of a 1 bedroom residential dwelling house (Class C3).

  Decided 22 Jun 2010 Heritage and listed buildings

1. 22 Apr 2025

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 22 April 2025, 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.

• 42 Museum Street London WC1A 1LY

  2011/0910/L 0m away

  Details pursuant to condition 3a (details of new railings), 3b (drawings of all new doors ), 3c (drawings of all new windows) and 3e (samples and manufacturer's details of new facing materials for the rear addition) of listed building consent 2010/2336/L for the internal alterations, demolition of an existing single storey rear addition and the erection of a two storey replacement rear extension associated with the change of use of the existing building from financial and professional services (Class A2) to basement and part ground floor (Class A1) retail unit with a 3 bedroom residential flat above (Class C3) and erection of a 1 bedroom residential dwelling house (Class C3), decided 22/06/2010.

  Granted Heritage and listed buildings Extension Demolition +1
  Small domestic

• 42 Museum Street London WC1A 1LY

  2010/2318/P 0m away

  Change of use of existing building from financial and professional services (Class A2) to provide a retail unit at basement and part ground floor (Class A1), with a 3 bedroom residential flat above (Class C3), including the demolition of an existing single storey rear addition and the erection of a two storey replacement rear extension containing a 1 bedroom residential dwelling house (Class C3).

  Granted Full applications Extension Demolition
  Small domestic

• 42 Museum Street London WC1A 1LY

  2010/2336/L 0m away

  Internal alterations, demolition of an existing single storey rear addition and the erection of a two storey replacement rear extension associated with the change of use of the existing building from financial and professional services (Class A2) to basement and part ground floor (Class A1) retail unit with a 3 bedroom residential flat above (Class C3) and erection of a 1 bedroom residential dwelling house (Class C3).

  Granted Heritage and listed buildings Extension Demolition
  Small domestic

• 42 Museum Street London WC1A 1LY

  2011/0188/L 0m away

  Demolition of a small section of the existing basement wall and insertion of a doorway in association with a basement extension.

  Granted Heritage and listed buildings Extension Demolition

• 42 Museum Street London WC1A 1LY

  2011/0187/P 0m away

  Extension to existing basement to create additional storage space to retail unit (Class A1).

  Granted Full applications Extension

• 43 Museum Street LONDON LONDON WC1A 1LY

  2017/2912/L 7m away

  Internal refurbishments and minor alterations to layout.

  Granted Heritage and listed buildings

• 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