12 Gloucester Gate, 12 & 13 Gloucester Gate Mews London NW1 4AD

This site has had 4 applications since 2016: 2 approved, 2 refused.

• 2017/4111/P Refused

  12 Gloucester Gate, 12 & 13 Gloucester Gate Mews London NW1 4AD

  Variation of condition 3 (approved drawings) of planning permission 2016/4549/P dated 22/12/2016 (for erection of single storey extension connecting 12 Gloucester Gate to mews building and associated alterations), namely lowering of garden level by 200mm, insertion of lift to lightwell, setting back of bay on east elevation, a flat solid roof to garden room, insertion of roof light over lift shaft, reconfigured / additional windows at 2nd floor on south elevation, reconfigured roof lights at 2nd floor roof, relocation of door and widening of garage door to east elevation of 12 Gloucester Gate Mews.

  Decided 15 Mar 2018 Full applications
• 2017/4133/L Refused

  12 Gloucester Gate, 12 & 13 Gloucester Gate Mews London NW1 4AD

  Erection of single storey extension connecting 12 Gloucester Gate to mews building; insertion of rooflight; excavation of basement to extend below rear courtyard and mews properties; remodelling of mews properties with sash windows at upper ground floor (facing courtyard), parapet height raised, and erection of hipped, pitched roof to 12 Gloucester Gate Mews following demolition of 12 and 13 Gloucester Gate Mews behind retained elevation facing Gloucester Gate Mews and internal alterations to 12 Gloucester Gate including installation of lift and alterations at 1st and 2nd floor level (all aforementioned approved under 2016/4554/L) and including the following: revised internal basement layout, relocation of secondary stair at 2nd floor, lowering of garden level by 200mm, insertion of lift to lightwell, setting back of bay on east elevation, insertion of roof light over lift shaft, reconfigured / additional windows at 2nd floor on south elevation, reconfigured roof lights at 2nd floor roof, relocation of door and widening of garage door to east elevation of 12 Gloucester Gate Mews.

  Decided 15 Mar 2018 Heritage and listed buildings
• 2016/4549/P Granted

  12 Gloucester Gate, 12 & 13 Gloucester Gate Mews London NW1 4AD

  Erection of single storey extension connecting 12 Gloucester Gate to mews building; insertion of rooflight; excavation of basement to extend below rear courtyard and mews properties; remodelling of mews properties with sash windows at upper ground floor (facing courtyard), parapet height raised, and erection of hipped, pitched roof to 12 Gloucester Gate Mews following demolition of 12 and 13 Gloucester Gate Mews behind retained elevation facing Gloucester Gate Mews.

  Decided 22 Dec 2016 Full applications

1. 22 Dec 2016

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

4 later applications on the register refer to this one:

• 2021/5371/L Granted

  12 Gloucester Gate London NW1 4HG

  Details of structural engineers' drawings and a method statement for: the demolition and excavation; and for the new stair required by condition 4 and 10 of listed building consent 2020/0427/L dated 12/10/2020 for 'Works permitted by extant Listed Building Consents 2016/4554/L and 2017/4133/L (as part allowed at appeal APP/X5210/W/18/3204334) and the following amendments namely the relocation of the stairs between the basement and lower ground floor to area below the existing stairs; revision to the layout of the treatment room as a result of the relocation of the proposed stairs; the removal of the non-original cupboard under the existing stairs, retention of the vaulted ceiling of the gallery; and the change from a rooflight to a lightwell and relocation of the opening towards the external wall of the mews.

  Decided 21 Mar 2022 Heritage and listed buildings
• 2021/5044/L Granted

  12 Gloucester Gate London NW1 4HG

  Details of photographic record of the interior required by condition 5 of listed building consent 2020/0427/L dated 12/10/2020 for 'Works permitted by extant Listed Building Consents 2016/4554/L and 2017/4133/L (as part allowed at appeal APP/X5210/W/18/3204334) and the following amendments namely the relocation of the stairs between the basement and lower ground floor to area below the existing stairs; revision to the layout of the treatment room as a result of the relocation of the proposed stairs; the removal of the non-original cupboard under the existing stairs, retention of the vaulted ceiling of the gallery; and the change from a rooflight to a lightwell and relocation of the opening towards the external wall of the mews.

  Decided 22 Nov 2021 Heritage and listed buildings
• 2020/0427/L Granted

  12 Gloucester Gate London NW1 4HG

  Works permitted by extant Listed Building Consents 2016/4554/L and 2017/4133/L (as part allowed at appeal APP/X5210/W/18/3204334) and the following amendments namely the relocation of the stairs between the basement and lower ground floor to area below the existing stairs; revision to the layout of the treatment room as a result of the relocation of the proposed stairs; the removal of the non-original cupboard under the existing stairs, retention of the vaulted ceiling of the gallery; and the change from a rooflight to a lightwell and relocation of the opening towards the external wall of the mews.

  Decided 12 Oct 2020 Heritage and listed buildings
• 2017/4133/L Refused

  12 Gloucester Gate, 12 & 13 Gloucester Gate Mews London NW1 4AD

  Erection of single storey extension connecting 12 Gloucester Gate to mews building; insertion of rooflight; excavation of basement to extend below rear courtyard and mews properties; remodelling of mews properties with sash windows at upper ground floor (facing courtyard), parapet height raised, and erection of hipped, pitched roof to 12 Gloucester Gate Mews following demolition of 12 and 13 Gloucester Gate Mews behind retained elevation facing Gloucester Gate Mews and internal alterations to 12 Gloucester Gate including installation of lift and alterations at 1st and 2nd floor level (all aforementioned approved under 2016/4554/L) and including the following: revised internal basement layout, relocation of secondary stair at 2nd floor, lowering of garden level by 200mm, insertion of lift to lightwell, setting back of bay on east elevation, insertion of roof light over lift shaft, reconfigured / additional windows at 2nd floor on south elevation, reconfigured roof lights at 2nd floor roof, relocation of door and widening of garage door to east elevation of 12 Gloucester Gate Mews.

  Decided 15 Mar 2018 Heritage and listed buildings

Camden granted permission on 22 December 2016, 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.

• 12 Gloucester Gate, 12 & 13 Gloucester Gate Mews London NW1 4AD

  2016/4549/P 50 yards away

  Erection of single storey extension connecting 12 Gloucester Gate to mews building; insertion of rooflight; excavation of basement to extend below rear courtyard and mews properties; remodelling of mews properties with sash windows at upper ground floor (facing courtyard), parapet height raised, and erection of hipped, pitched roof to 12 Gloucester Gate Mews following demolition of 12 and 13 Gloucester Gate Mews behind retained elevation facing Gloucester Gate Mews.

  Granted Full applications Extension Loft or dormer +2
  Small domestic

• Railings to Gloucester Gate Lodge Outer Circle London NW1 4HG

  2019/0068/L Submitted 4 Jan 2019 50 yards away

  Temporary dismantling, storage and reinstatement of boundary railings to allow for installation of a water supply trunk main in connection with the construction of the HS2 railway..

  Granted Heritage and listed buildings 9 docs

• Garden Railings to Gloucester Gate Lodge Gloucester Gate London NW1 4HG

  2019/3788/L Submitted 24 Jul 2019 50 yards away

  Reinstatement of supporting brickwork wall to boundary railings, pursuant to listed building consent ref 2019/0068/L granted on 04/03/2019 for temporary dismantling, storage and reinstatement of boundary railings to allow for installation of a water supply trunk main in connection with the construction of the HS2 railway.

  Granted Heritage and listed buildings 9 docs

• 14 - 15 Gloucester Gate London NW1 4HG

  2012/2153/P 50 yards away

  Installation of new fire escape ladder from first floor to roof level on rear elevation (following the removal of existing fire escape ladder in connection with existing training establishment (Class D1).

  Granted Full applications

• 14 - 15 Gloucester Gate London NW1 4HG

  2024/4058/T 50 yards away

  FRONT GARDEN: 1 x Sycamore (T1) - Fell to ground level.

  Granted Trees

• 14 GLOUCESTER GATE LONDON NW1 4HG

  2011/5241/T 50 yards away

  T1 Mature lime tree adjacent to highway Crown reduce by 25%. Crown raise over highway up to meter, prune back from road signs and traffic lights. Crown clean remove dead & diseased branches. T2 Birch tree adjacent to nursery school Crown reduce by 25%. T3 Robinia in back garden over hanging road - Fell

  Granted Trees

• 2026/1141/L Granted

  25 John Street London WC1N 2BS

  Internal and external alterations to partition layout at basement, supporting structures and external ground level, and alterations to design of conservatory, windows and doors granted under listed building consent 2024/0338/L dated 06/08/2024.

  Received 26 Mar, published by the council 24 Jul 2026 Heritage and listed buildings
• 2025/1781/L Granted

  Frognal Rise House Lower Terrace London NW3 6RE

  Demolition of existing garage and interlinking gallery and replacement with new garage and garden room with link, new basement floor below garden, alterations to main house including replacement windows including reinstated oriel window and new French doors to entrance elevation, new roofing to side wing, new portico and replacement door to front elevation, enlargement of existing lightwell, replacement gates and canopy over entrance gate, restorations of boundary treatments, associated internal alterations including partial underpinning works and other minor alterations.

  Received 22 Apr, published by the council 22 Jul 2026 Heritage and listed buildings
• 2026/4129/L Awaiting decision

  6 Leverton Street London NW5 2PJ

  Strip out kitchen including floor tiles and replace; replace plumbing and flooring in rear ensuite; replace plumbing in front ensuite and WC; replace internal doors; replace garden wall with metal railing; replace 3 rear windows, 3 rear elevation side windows, 1 rear door and 1 rear elevation side door with double-glazed crittal windows and doors; remove 2 rear windows; render rear elevation brickwork; and associated works.

  Received 1 Oct, published by the council 9 Oct 2026 Heritage and listed buildings
• 2026/1686/L Granted

  Flat Ground and 1st Floor and Flat 2nd and 3rd Floor 14 Downshire Hill London NW3 1NR

  External and internal alterations in connection with conversion of two self-contained flats into a single-family dwellinghouse, including new doors at rear ground and second floor level, replacement windows at rear second and third floors level, removal of internal partitions, extending the stair handrail, and replacement internal doors, parquet flooring, skirting, architraves, cornicing, and fittings.

  Received 19 May, published by the council 24 Jul 2026 Heritage and listed buildings
• 2026/2202/L Refused

  4 Hampstead Square London NW3 1AB

  Erection of conservatory to front elevation.

  Received 27 May, published by the council 24 Jul 2026 Heritage and listed buildings