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• 2017/2454/L Withdrawn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• 2017/1962/P Withdrawn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 0m 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 0m 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 0m 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 0m 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 0m 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 0m 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

• 2026/0825/L Granted

  88 Frognal London NW3 6XB

  Discharge of condition 4 (a) Plan, elevation and section drawings of all new internal doors at a scale of 1:10 with typical moulding and architrave details at a scale of 1:1. b) Plan, elevation and section drawings, including jambs, head and cill, of all new windows and doors, including garage doors and windows, at a scale of 1:10 with typical glazing bar details at 1:1) of 2025/3436/L (External works comprising demolition of existing conservatory and erection of single-storey ground floor extension; demolition of existing garage and erection of replacement garage; alterations and repairs to roof; repair and minor alterations to building facade; provision of new hard and soft landscaping. Interior works comprising general remodelling works; minor changes to planform and openings; installation of new mechanical and electrical services throughout)

  2 Mar 2026 Heritage and listed buildings
• 2026/2946/L Awaiting decision

  Flat 1, 73 Eton Avenue London NW3 3EU

  Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.

  3 Sep 2026 Heritage and listed buildings
• 2026/3754/L Awaiting decision

  10 Great Ormond Street London Camden WC1N 3RB

  Coversion of 3 flats into 4 and internal alterations to the listed building

  2 Sep 2026 Heritage and listed buildings
• 2026/2194/L Withdrawn

  Dunboyne Road Estate Dunboyne Road London NW3 2YY

  Installation of Air Source and Water Source Heat Pumps in basement car park with associated acoustic and security enclosures; installation of PV Panels on roof of Blocks 1, 2 and 3; removal of existing gas boilers and associated plant; installation of a new estate-wide heating network including Heat Interface Units, radiators, pipework and associated infrastructure to serve Flats 1-71; excavation of trenches and installation of below-ground heating, water and electrical infrastructure; and associated ancillary works.

  29 May 2026 Heritage and listed buildings
• 2026/3773/L Awaiting decision

  47 Kelly Street London NW1 8PG

  Replacement of concrete roof tiles with slate roof tiles (Retrospective)

  28 Aug 2026 Heritage and listed buildings