2010/3452/L

1. 20 Aug 2010

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.

More on heritage and listed buildings applications in our guide

• 2014/2928/P Granted

  20 Mecklenburgh Square London WC1N 2AD

  Non-material amendment to change cladding and covering materials in rear extension, change of plan layout of upper ground floor to rear extension by replacing drawing numbers 220_G_020G, 021H and 022G with drawing numbers 220_G_020K, 021K and 022H pursuant to pursuant to approved permission reference 2012/1012/P dated 09/05/2012

  3 Jul 2014 0m away Full applications
• 2012/1255/L Granted

  20 Mecklenburgh Square London WC1N 2AD

  Demolition of an existing two-storey closet wing and replacement with the erection of a two-storey rear extension, a new glazed staircase enclosure and roof garden on the flat roof of the proposed rear extension, including a new glass balustrade at first floor level, and internal and external alterations including retrospective consent for works to the main stone staircase to existing flat (Class C3).

  9 May 2012 0m away Heritage and listed buildings
• 2016/1167/L Granted

  Flat 1 20 Mecklenburgh Square London WC1N 2AD

  Minor internal alterations including; replace glazed doors on extension with a contemporary design, replace window and door to yard in lower ground floor kitchen with contemporary design replacement, change floor covering of yard from limestone to slate and replace timber cladding on recent extension with render and replace glass balustrade to extension with black metal railings.

  6 Apr 2016 0m away Heritage and listed buildings
• 2016/0553/P Granted

  Flat 1 20 Mecklenburgh Square London WC1N 2AD

  Minor internal alterations including; replace contemporary designed glazed doors on extension with a contemporary design, replace window and door to yard in lower ground floor kitchen with contemporary design, change floor covering of yard from limestone to slate and replace timber cladding on recent extension with render and replace glass balustrade to extension with black metal railings.

  31 Mar 2016 0m away Full applications
• 2010/3428/P Granted

  20 Mecklenburgh Square London WC1N 2AD

  Replacement of first floor rear sash window with French door and fixed lights to non self contained maisonette (Class C3).

  13 Aug 2010 0m away Full applications
• 2014/3480/L Granted

  20 Mecklenburgh Square London WC1N 2AD

  Alterations to cladding and minor change of plan layout to the upper ground floor of the rear extension approved on 09/05/12 (ref: 2012/1255/L). Retrospective.

  3 Jul 2014 0m away Heritage and listed buildings

• 2026/3248/L Awaiting decision

  15 Eton Villas London NW3 4SG

  Single storey rear extension, internal reconfigurations, installation of double-glazed windows and doors, new air-conditioning units, landscaping to rear garden and erection of outbuilding amongst other alterations to the property.

  30 Jul 2026 Heritage and listed buildings
• 2026/3213/L Awaiting decision

  51, 53, 55, 57 Lamb's Conduit Street London Camden WC1N 3NB

  Installation of gas infrastructure including an external gas riser, associated pipework, and internal alterations comprising the relocation of gas meters and associated connections

  29 Jul 2026 Heritage and listed buildings
• 2026/2318/L Granted

  90 Frognal London NW3 6XB

  Structural strengthening of underground vault and underpinning of northern side of ground-floor boot room.

  5 Jun 2026 Heritage and listed buildings
• 2026/2136/L Granted

  45 Downshire Hill London NW3 1NU

  Proposed repair and replacement of front elevation windows with matching single glazed timber sash units. Replacement modern French doors in slim-profile double glazing. Rear windows retained, and repaired as required.

  26 May 2026 Heritage and listed buildings
• 2026/2122/L Granted

  6 Royal College Street London NW1 0TH

  Various internal and external changes, including replacement and alteration to timber windows, adjustments to internal layout, installation of fire-rated doors and emergency lighting, relocation and rearrangement of bathroom and kitchen (retrospective).

  26 May 2026 Heritage and listed buildings