11 Mansion Gardens London NW3 7NG

This site has had 10 applications since 2012: 5 approved, 2 refused.

• 2025/5379/T Granted

  11 Mansion Gardens London NW3 7NG

  (TPO REF: A1) FRONT GARDEN: Mixed Holly, Yew, Hawthorn and Ivy Group (G1) - Reduce lateral and sub lateral growth which encroaches over the road and towards the house by approx. 1.4m - 1.7m, reducing overlong branches back into a more compact group form.

  Decided 9 Jan 2026 Trees
• 2017/5238/P Withdrawn

  11 Mansion Gardens London NW3 7NG

  Installation of 3 x external air conditioning units (retrospective)

  Decided 20 Jan 2021 Full applications
• 2018/3010/P Withdrawn

  11 Mansion Gardens London NW3 7NG

  Formation of a single car parking space to the garden

  Decided 20 Jan 2021 Householder
• 2017/5514/P Granted

  11 Mansion Gardens London NW3 7NG

  Submission of fencing details as required by condition 4 (a + b) of planning permission 2016/4977/P (dated 29/11/2016) for the 'Conversion of garage into habitable room; erection of boundary fence; alterations to fenestrations at ground floor level and installation of rear dormer window to dwelling'

  Decided 4 Dec 2017 Full applications
• 2016/4976/P Granted

  11 Mansion Gardens London NW3 7NG

  Alterations to dwellinghouse including the erection of raised decking / fencing to rear ground floor and installation of Jacuzzi; extension to 1st floor rear terrace and replacement balustrade; recladding section of rear elevation; installation of 2 rear rooflights (retrospective).

  Decided 20 Dec 2016 Full applications
• 2016/4977/P Granted

  11 Mansion Gardens London NW3 7NG

  Conversion of garage into habitable room; erection of boundary fence; alterations to fenestrations at ground floor level and installation of rear dormer window to dwelling (C3) (part retrospective)

  Decided 29 Nov 2016 Full applications
• 2016/4978/P Refused

  11 Mansion Gardens London NW3 7NG

  Erection of single storey conservatory to side of dwellinghouse (C3)

  Decided 11 Nov 2016 Full applications
• 2016/2614/P Withdrawn

  11 Mansion Gardens London NW3 7NG

  Convert garage to ground floor accommodation, erect conservatory to the side, hard standing area for car parking, alterations to fencing and front door

  Decided 29 Jul 2016 Full applications
• 2012/1195/T Granted

  11 Mansion Gardens London NW3 7NG

  (TPO Ref: C98) FRONT GARDEN: 2 x Silver Birch - Reduce crown by 15% and reshape. 1 x Pine - Reduce crown by 15% and reshape. 2 x Yew Hedge - Reduce crown by 15% and reshape. 1 x Hedge - Reduce in height to 7ft from inside and trim both sides to tidy.

  Decided 26 Mar 2012 Trees

1. 25 Jul 2017

   Decision issued: Refused and Warning of Enforcement Action to be Taken

2. 22 Jul 2026

   Added to PlanIndex

This application is at appeal, which passes the decision from Camden to the planning inspectorate, and the outcome will replace the council's decision. 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.

• 11 Mansion Gardens London NW3 7NG

  2016/4976/P 50 yards away

  Alterations to dwellinghouse including the erection of raised decking / fencing to rear ground floor and installation of Jacuzzi; extension to 1st floor rear terrace and replacement balustrade; recladding section of rear elevation; installation of 2 rear rooflights (retrospective).

  Granted Full applications Extension Loft or dormer
  Domestic

• 11 Mansion Gardens London NW3 7NG

  2016/4978/P 50 yards away

  Erection of single storey conservatory to side of dwellinghouse (C3)

  Refused Full applications Extension
  Small domestic

• 11 Mansion Gardens London NW3 7NG

  2017/5238/P 50 yards away

  Installation of 3 x external air conditioning units (retrospective)

  Withdrawn Full applications

• 11 Mansion Gardens London NW3 7NG

  2012/1195/T 50 yards away

  (TPO Ref: C98) FRONT GARDEN: 2 x Silver Birch - Reduce crown by 15% and reshape. 1 x Pine - Reduce crown by 15% and reshape. 2 x Yew Hedge - Reduce crown by 15% and reshape. 1 x Hedge - Reduce in height to 7ft from inside and trim both sides to tidy.

  Granted Trees

• 11 Mansion Gardens London NW3 7NG

  2025/5379/T Submitted 26 Nov 2025 50 yards away

  (TPO REF: A1) FRONT GARDEN: Mixed Holly, Yew, Hawthorn and Ivy Group (G1) - Reduce lateral and sub lateral growth which encroaches over the road and towards the house by approx. 1.4m - 1.7m, reducing overlong branches back into a more compact group form.

  Granted Trees 3 docs

• The White Lodge 2 Mansion Gardens London NW3 7NG

  2025/5352/T Submitted 26 Nov 2025 50 yards away

  (TPO REF: A1) REAR GARDEN: 1 x Robinia (T1) - Reduce back to previous and most recent points of reduction, approx. 1.5m - 2m. Reduce over the roof and building by up to approx. 3m to control encroachment. Thin density by up to 20%. 1 x Holly (T2) - Reduce crown by up to 1.2m all around whilst preserving its natural crown shape.

  Granted Trees 3 docs

• 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