12 Maryon Mews London NW3 2PU

This site has had 6 applications since 2015: 5 approved, 0 refused.

• 2015/3030/P Granted

  12 Maryon Mews London NW3 2PU

  Alterations to north easterly roof pitch and installation of 2 x rooflights.

  Decided 21 Jul 2015 Full applications
• 2015/1935/P Granted

  12 Maryon Mews London NW3 2PU

  Erection of single storey front extension to form new access

  Decided 17 Apr 2015 Full applications
• 2015/0437/P Granted

  12 Maryon Mews London NW3 2PU

  Erection of a two storey rear extension, extension to existing conservatory, replacement of rear ground floor timber doors with sliding metal framed doors and relocation of 2 x windows on rear elevation.

  Decided 24 Mar 2015 Full applications
• 2015/0621/P Granted

  12 Maryon Mews London NW3 2PU

  Installation of front door and associated surround to infill recessed front porch area

  Decided 12 Feb 2015 Full applications
• 2015/0622/P Granted

  12 Maryon Mews London NW3 2PU

  Installation of window on front elevation at first floor level

  Decided 12 Feb 2015 Full applications

1. 26 Jan 2015

   Decision issued: Withdrawn Decision

2. 22 Jul 2026

   Added to PlanIndex

The applicant withdrew this application before Camden decided it, and is free to submit a revised scheme at any time. 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.

• 12 Maryon Mews London NW3 2PU

  2015/1935/P 50 yards away

  Erection of single storey front extension to form new access

  Granted Full applications Extension
  Small domestic

• 12 Maryon Mews London NW3 2PU

  2015/0621/P 50 yards away

  Installation of front door and associated surround to infill recessed front porch area

  Granted Full applications Extension
  Small domestic

• 12 Maryon Mews London NW3 2PU

  2015/0622/P 50 yards away

  Installation of window on front elevation at first floor level

  Granted Full applications Windows or glazing

• 12 Maryon Mews London NW3 2PU

  2015/3030/P 50 yards away

  Alterations to north easterly roof pitch and installation of 2 x rooflights.

  Granted Full applications Loft or dormer

• 12 Maryon Mews London NW3 2PU

  2015/0437/P 50 yards away

  Erection of a two storey rear extension, extension to existing conservatory, replacement of rear ground floor timber doors with sliding metal framed doors and relocation of 2 x windows on rear elevation.

  Granted Full applications Extension Windows or glazing

• 1 A Maryon Mews London Camden NW3 2PU

  2025/3568/P Submitted 14 Aug 2025 50 yards away

  Single-storied first floor extension, proposed roof terrace with privacy screens and dormer window.

  Withdrawn Householder Extension Loft or dormer +1 29 docs
  Domestic

• 2026/0990/P Refused

  1 Bleeding Heart Yard & 19 Greville Street London EC1N 8SJ

  Change of use from office space and restaurant use (Class E) and members club (Sui Generis) to affordable workspace and restaurant use (Class E) and 1 x residential unit on the third and fourth floors (Class C3). Erection of a two-storey roof extension across 19 Greville Street and 1 Bleeding Heart Yard, including alterations at second-floor level to the interior courtyard elevation, ground-floor fenestration changes, and a roof terrace for the associated residential unit.

  Received 26 Mar, published by the council 24 Jul 2026 Full applications
• 2026/3044/P Granted

  London Irish Centre 50-52 Camden Square London NW1 9XB

  Details to discharge Condition 25 Part A (Air Quality Monitoring) of planning permission ref. 2020/1481/P dated 17/05/24 for 'Redevelopment of site to provide new and reconfigured community centre and ancillary residential accommodation (Class D1/ D2) involving alterations to retained buildings at No's. 50, 51 and 52 Camden Square including replacement of two storey 'link' building; demolition of Murray Street and Murray Mews buildings and replacement with part-three / part-four storey building (plus basement level) with second and third floor terraces and new entrance; associated landscaping and cycle parking'.

  Received 20 Jul, published by the council 2 Aug 2026 Full applications
• 2026/4338/P Awaiting decision

  32 Willoughby Road London NW3 1RU

  Details to discharge condition 6 (tree protection methods) of planning permission 2025/4186/P granted 13/11/2025 for 'Demolition of existing two storey outrigger and replacement with part two-storey, part single storey rear extension, loft conversion with dormer and roof light to main roof at rear, new windows to flanking wall, replacement of existing windows and installation of a gate and fence to side'.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/4141/P Awaiting decision

  24 Endell Street London WC2H 9HQ

  Relocation of three air conditioning condenser units to first floor roof, construction of an acoustic enclosure and other associated works.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/3907/P Awaiting decision

  Flat 1 16 Lyndhurst Road London NW3 5NL

  External renovations to the front of the property, including works to the entry porch, steps, replacment front door, installation of metal railings to boundary wall and paving to front garden and erection of a glass roof to the side passage to create a bike shelter.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications