8 Belsize Park Mews London NW3 5BL

1. 27 Jan 2026

   Received by Camden

2. 16 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 13 April 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Camden took a median of 43 days over the applications it decided in the last year.

This application is with Camden for determination, against a statutory target of eight weeks. Over the last year Camden decided householder applications in a median of 66 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 9 Belsize Park Mews London NW3 5BL

  2017/4439/P 50 yards away

  Details of natural slate sample required by condition 3 of 2016/5863/P dated 02/02/2017 for replacement of existing sedum green roof with zinc cladding on the flat roof and natural slates on the rear roofslope.

  Granted Full applications

• 9 Belsize Park Mews London NW3 5BL

  2013/0466/P 50 yards away

  Erection of roof extension with green roof and front roof terrace enclosed by timber privacy screen all in connection with existing dwellinghouse (Class C3).

  Withdrawn Full applications Extension
  Domestic

• 9 Belsize Park Mews London NW3 5BL

  2016/5863/P 50 yards away

  Replacement of existing sedum green roof with zinc cladding on the flat roof and natural slates on the rear roofslope.

  Granted Full applications

• 9 Belsize Park Mews, London, NW3 5BL

  2015/5238/P 50 yards away

  Installation of three vent pipes on roof

  Granted Full applications

• 9 Belsize Park Mews London NW3 5BL

  2013/2506/P 50 yards away

  Erection of additional floor at second floor level, to include green roof, 2 x roof lights to rear roof slope, 2 x balustrades to front elevation of single dwelling house (Class C3).

  Refused Full applications Loft or dormer
  Domestic

• 10 Belsize Park Mews London NW3 5BL

  2020/5034/P Submitted 18 Nov 2020 50 yards away

  Erection of a single storey replacement rear extension; conversion of garage to habitable accommodation; alterations to fenestration including the insertion of rooflights to the flat roof, rendering of part of front and rear façade; and associated landscaping works including resurfacing and bin store to the front of the property.

  Granted Householder Extension Loft or dormer +1 10 docs
  Small domestic

• 2026/4031/P Awaiting decision

  10 Albert Street London NW1 7NZ

  Erection of an extension to widen rear dormer window at second floor.

  Received 2 Oct, published by the council 6 Oct 2026 Householder
• 2026/3231/P Granted

  9 Wadham Gardens London NW3 3DN

  Replacement rear timber casement window, installation of timber-panelled side access door, replacement of existing front boundary gates and piers, installation of metal railings, provision of reclaimed Yorkstone paving to the front garden and associated works.

  Received 30 Jul, published by the council 9 Aug 2026 Householder
• 2026/4030/P Awaiting decision

  6 Leverton Street London NW5 2PJ

  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 Householder
• 2026/3493/P Granted

  2 Wildwood Terrace London NW3 7HT

  Enlargement of the existing rear French doors and single-leaf door at lower ground floor level, together with the replacement of five rear timber sash windows.

  Received 14 Aug, published by the council 22 Aug 2026 Householder
• 2026/2003/P Granted

  23 Glenmore Road London NW3 4BY

  Installation of external AC unit with acoustic enclosure to rear garden.

  Received 29 May, published by the council 24 Jul 2026 Householder