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Planning application

89 Belsize Lane London NW3 5AU

Granted Camden 2025/5377/P Householder Application

Works: Loft or dormer Windows or glazing 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 dormer window to rear roofslope and relocation of rear vent pipe to roof.

As published by the council, reference 2025/5377/P

Application record

Reference
2025/5377/P
Type
Householder Application
Status
Final Decision
Decision
Granted
Received
27 Nov 2025
Validated
9 Dec 2025
Decided
11 Mar 2026
Ward
Belsize
Decision by
Delegated
Postcode
NW3 5AU

Site history

Applications at this address on the Camden register

This site has had 10 applications since 2012: 8 approved, 0 refused.

  • 2025/5378/L Granted

    89 Belsize Lane London NW3 5AU

    Erection of dormer window to rear roofslope; relocation of rear vent pipe to roof; and internal alterations including reconfiguration of top floor bedroom and repositioning of internal wall within ground floor study.

    Decided 11 Mar 2026 Heritage and listed buildings
  • 2025/0507/T Granted

    89 Belsize Lane London NW3 5AU

    REAR GARDEN: 1 x Sycamore (T1) - Remove new growth back to previous points of reduction: 1.5m circa.

    Decided 13 Mar 2025 Trees
  • 2021/0832/T Granted

    89 Belsize Lane London NW3 5AU

    REAR GARDEN: 1 x Sycamore - Reduce by 1.5m back to previous pruning points.

    Decided 22 Mar 2021 Trees
  • 2017/2454/L Withdrawn

    89 Belsize Lane London NW3 5AU

    Erection of rear dormer with associated terrace, 2 x rooflights to rear roofslope; erection of single storey 2nd floor extension above existing closet wing with lantern rooflight; alterations to front entrance steps; and internal alterations.

    Decided 14 Jun 2017 Heritage and listed buildings
  • 2017/1962/P Withdrawn

    89 Belsize Lane London NW3 5AU

    Erection of rear dormer with associated terrace, 2 x rooflights to rear roofslope; erection of single storey 2nd floor extension above existing closet wing with lantern rooflight; alterations to front entrance steps.

    Decided 14 Jun 2017 Full applications
  • 2014/8008/T Granted

    89 Belsize Lane London NW3 5AU

    REAR GARDEN: 1 x Sycamore - Reduce back to previous reductiion points.

    Decided 29 Jan 2015 Trees
  • 2012/2642/T Granted

    89 Belsize Lane London NW3 5AU

    REAR GARDEN: 1 x Sycamore - Crown reduce by 25% to previous points.

    Decided 28 May 2012 Trees
  • 2012/1189/P Granted

    89 Belsize Lane London NW3 5AU

    Erection of extension with lantern light at rear second floor level, installation of two dormer windows in rear roofslope and alterations to front entrance steps all in connection with exiting single-family dwellinghouse (Class C3).

    Decided 1 May 2012 Full applications
  • 2012/1335/L Granted

    89 Belsize Lane London NW3 5AU

    Erection of extension with lantern light at rear second floor level, installation of dormer window in rear roofslope and alterations to front entrance steps all in connection with exiting single-family dwellinghouse (Class C3).

    Decided 1 May 2012 Heritage and listed buildings

Timeline

Dates from the published record

  1. 27 Nov 2025

    Received by Camden

  2. 9 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 11 Mar 2026

    Decision issued: Granted

  4. 9 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

28 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Camden granted permission on 11 March 2026, 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

  • 89 Belsize Lane London NW3 5AU

    2025/0507/T 50 yards away

    REAR GARDEN: 1 x Sycamore (T1) - Remove new growth back to previous points of reduction: 1.5m circa.

    Granted Trees

  • 89 Belsize Lane London NW3 5AU

    2017/2454/L 50 yards away

    Erection of rear dormer with associated terrace, 2 x rooflights to rear roofslope; erection of single storey 2nd floor extension above existing closet wing with lantern rooflight; alterations to front entrance steps; and internal alterations.

    Withdrawn Heritage and listed buildings Extension Loft or dormer
    Small domestic

  • 89 Belsize Lane London NW3 5AU

    2012/2642/T 50 yards away

    REAR GARDEN: 1 x Sycamore - Crown reduce by 25% to previous points.

    Granted Trees

  • 89 Belsize Lane London NW3 5AU

    2025/5378/L Submitted 27 Nov 2025 50 yards away

    Erection of dormer window to rear roofslope; relocation of rear vent pipe to roof; and internal alterations including reconfiguration of top floor bedroom and repositioning of internal wall within ground floor study.

    Granted Heritage and listed buildings Loft or dormer Windows or glazing 29 docs

  • 89 Belsize Lane London Camden NW3 5AU

    2025/5380/P Submitted 27 Nov 2025 50 yards away

    Erection of a second floor mansard style extension upon existing rear outrigger to create a bathroom; raising of outrigger parapet wall; alteration to lower part of second floor rear window to create doorway; and associated alterations.

    Withdrawn Householder Extension Loft or dormer +1 23 docs
    Domestic

  • 89 Belsize Lane London Camden NW3 5AU

    2025/5381/L Submitted 27 Nov 2025 50 yards away

    Erection of a second floor mansard-style extension upon existing rear outrigger to create a bathroom; raising of outrigger parapet wall; alteration to lower part of second floor rear window to create doorway; and associated alterations.

    Withdrawn Heritage and listed buildings Extension Loft or dormer +1 24 docs

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