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Planning application

12 Belsize Road London NW6 4RD

Granted Camden 25-00117-HAPP Householder

Works: Extension Loft or dormer Domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Erection of a mansard roof extension to the flat roof of the side extension.

As published by the council, reference 25-00117-HAPP

Application record

Reference
25-00117-HAPP
Category
Householder
Status
Final Decision
Decision
Granted
Decided
7 Apr 2025
Postcode
NW6 4RD

Site history

Applications at this address on the Camden register

This site has had 3 applications since 2012: 2 approved, 0 refused.

  • 2016/3518/P Granted

    12 Belsize Road London NW6 4RD

    Erection of a part single part two storey side extension

    Decided 26 Aug 2016 Full applications
  • 2012/4349/P Withdrawn

    12 Belsize Road London NW6 4RD

    Erection of 3-storey side extension to existing dwellinghouse (Class C3).

    Decided 15 Oct 2012 Full applications

Timeline

Dates from the published record

  1. 7 Apr 2025

    Decision issued: Granted

  2. 22 Jul 2026

    Added to PlanIndex

What this grant of permission means

Camden granted permission on 7 April 2025, 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.

About householder applications

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.

Nearby applications

Within 0.3 miles

  • 12 Belsize Road London NW6 4RD

    2016/3518/P 50 yards away

    Erection of a part single part two storey side extension

    Granted Full applications Extension

  • 12 Belsize Road London NW6 4RD

    2012/4349/P 50 yards away

    Erection of 3-storey side extension to existing dwellinghouse (Class C3).

    Withdrawn Full applications Extension
    Domestic

  • 10 and 12 Belsize Road London NW6 4RD

    2020/4660/P 50 yards away

    Variation of condition 3 (approved plans) of planning permission 2018/5913/P dated 19/02/2019 (for the Erection of a part single part two storey side extension to No.12 (to include removal of existing boundary wall), namely, extension of the side extension; installation on new gate into the side passage with new external staircase; alterations to the fenestration treatment to the front and rear elevations including installation of sliding doors at ground floor level; replacement of existing window with door for recess balcony to the rear first floor; new timber framed window to the front first floor window.

    Granted Full applications Extension Windows or glazing
    Small domestic

  • 10 & 12 Belsize Road London NW6 4RD

    2018/5913/P Submitted 3 Dec 2018 50 yards away

    Erection of a part single part two storey side extension to no.12 (to include removal of existing boundary wall)

    Granted Householder Extension 11 docs
    Small domestic

  • 14 Belsize Road London NW6 4RD

    2018/4327/P Submitted 10 Sep 2018 50 yards away

    Erection of single storey rear extension to dwelling house following demolition of existing rear structure [subsequent to prior approval granted on 07/08/2018 under ref: 2018/3652/P]

    Granted Lawful development Extension Demolition 8 docs
    Small domestic

  • 14 Belsize Road London NW6 4RD

    2018/3652/P Submitted 2 Aug 2018 50 yards away

    Prior approval for the erection of a single storey rear extension to dwelling house (Depth: 4.5m; Maximum height: 3.2m; Eaves height: 3.0m) following demolition of existing rear structure

    Granted Prior approval Extension Demolition 7 docs
    Small domestic

In Camden

  • 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