89 Belsize Lane London NW3 5AU

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

• 2025/5377/P Granted

  89 Belsize Lane London NW3 5AU

  Erection of dormer window to rear roofslope and relocation of rear vent pipe to roof.

  Decided 11 Mar 2026 Householder
• 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• 2017/2454/L Withdrawn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• 2017/1962/P Withdrawn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

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

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.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• 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 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

• 89 Belsize Lane London NW3 5AU

  2025/5377/P Submitted 27 Nov 2025 50 yards away

  Erection of dormer window to rear roofslope and relocation of rear vent pipe to roof.

  Granted Householder Loft or dormer Windows or glazing 28 docs
  Domestic

• 2026/1141/L Granted

  25 John Street London WC1N 2BS

  Internal and external alterations to partition layout at basement, supporting structures and external ground level, and alterations to design of conservatory, windows and doors granted under listed building consent 2024/0338/L dated 06/08/2024.

  Received 26 Mar, published by the council 24 Jul 2026 Heritage and listed buildings
• 2025/1781/L Granted

  Frognal Rise House Lower Terrace London NW3 6RE

  Demolition of existing garage and interlinking gallery and replacement with new garage and garden room with link, new basement floor below garden, alterations to main house including replacement windows including reinstated oriel window and new French doors to entrance elevation, new roofing to side wing, new portico and replacement door to front elevation, enlargement of existing lightwell, replacement gates and canopy over entrance gate, restorations of boundary treatments, associated internal alterations including partial underpinning works and other minor alterations.

  Received 22 Apr, published by the council 22 Jul 2026 Heritage and listed buildings
• 2026/4129/L Awaiting decision

  6 Leverton Street London NW5 2PJ

  Strip out kitchen including floor tiles and replace; replace plumbing and flooring in rear ensuite; replace plumbing in front ensuite and WC; replace internal doors; 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 Heritage and listed buildings
• 2026/1686/L Granted

  Flat Ground and 1st Floor and Flat 2nd and 3rd Floor 14 Downshire Hill London NW3 1NR

  External and internal alterations in connection with conversion of two self-contained flats into a single-family dwellinghouse, including new doors at rear ground and second floor level, replacement windows at rear second and third floors level, removal of internal partitions, extending the stair handrail, and replacement internal doors, parquet flooring, skirting, architraves, cornicing, and fittings.

  Received 19 May, published by the council 24 Jul 2026 Heritage and listed buildings
• 2026/2202/L Refused

  4 Hampstead Square London NW3 1AB

  Erection of conservatory to front elevation.

  Received 27 May, published by the council 24 Jul 2026 Heritage and listed buildings