34, Thornhill Square, London, N1 1BE

This site has had 2 applications since 2025: 1 approved, 0 refused.

• P2025/1796/TRE Decided

  34, Thornhill Square, London, N1 1BE

  T1- Common Dogwood- (6m) crown reduction of up to approximately 3m. T5- Birch tree -near back on left with poor taper - cut to ground level ( area is overcrowded, T4 Birch to be retained) T6-Cypress tree - (6m) at back of garden- cut to ground level. T4- Birch tree on right- remove Ivy from tree, crown reduction of 4m. T3- Fig tree- reduce by up to 2.5m T2- Hazel tree- pollard to a height of approximately 2m.

  Submitted 19 Jun 2025 Trees

1. 9 Oct 2025

   Received by Islington

2. 20 Nov 2025

   Decision issued: Approve with conditions

3. 8 Aug 2026

   Added to PlanIndex

Islington granted permission on 20 November 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.

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.

• 38 Thornhill Square, London, N1 1BE

  P2025/3131/TRE Submitted 5 Nov 2025 50 yards away

  Rear Garden: T1: Mature Ash: Approximately 19.00m: Reduce back to previous an

  Granted Trees

• 39, Thornhill Square, London, N1 1BE

  P2025/3130/TRE Submitted 10 Nov 2025 50 yards away

  Rear Garden: T2: Mature Sycamore (Twin Stemmed): Approximately 20.00m: Thin c

  Granted Trees

• 46, Flat A, Thornhill Square, London, N1 1BE

  P2024/2757/LBC Submitted 13 Sep 2024 50 yards away

  The proposals form part of essential maintenance works. The internal spaces at lower- ground floor experience significant condensation during winter months. The application is for: 1. Changing the external metalwork support to the ground floor balcony overlooking the garden. Removing the existing metal brackets set within the external brick and replacing with four metal posts will separate the balcony assembly from the brickwork and stop the current cold bridging effect of the metal plates. To complete the works, the metalwork will be painted in a matt black paint to match the existing. 2. Installing two small, low-noise, heat recovery ventilation units (one to the bedroom at the front and one to the living space at the rear) to improve the ventilation to the internal space and reduce the internal humidity levels. 3. Installing an additional vent grille to the disused chimney breast at lower ground floor level to encourage air movement and manage condensation levels.

  Granted Heritage and listed buildings 10 docs

• 55 Thornhill Square, London, N1 1BE

  P2023/0930/LBC Submitted 31 Mar 2023 50 yards away

  Repairs and redecoration of 55 Thornhill Square. Including externally like for like repairs to the lead roof, gutters, downpipes and stucco render. And, internally replacing third floor bathroom, third floor bedroom floor finish and plastered ceiling, alterations to the second floor shower room partition, and replacing lower ground tiles and vinyl floor finish.

  Granted Heritage and listed buildings 11 docs

• 57 Thornhill Square, London, N1 1BE

  P2019/3320/TRE Submitted 6 Nov 2019 50 yards away

  Rear garden (T1-T3) 3x Leyland Cypresses - FELL. N.B. Overgrown hedge causing direct damage to boundary wall at the rear - inappropriate retention.

  Granted Trees 2 docs
  Small domestic

• 316 Caledonian Road, London N1 1BB

  P2025/0714/FUL Submitted 11 Mar 2025 50 yards away

  87% historically approved · decision due ~30 Jun

  Retrospective conversion of the rear addition of the commercial property into two self-contained flats.

  Awaiting decision Full applications New dwelling 17 docs

• P2026/2302/LBC Granted

  32, 34, 36 & 38, Amwell Street, London, EC1R 1XT

  Replacement of internal flat entrance doors, architraves and fanlights, install

  Received 1 Sep, published by the council 7 Sep 2026 Heritage and listed buildings
• P2026/2220/LBC Granted

  34, SUDELEY STREET, LONDON, ISLINGTON, N1 8HW

  Retrospective Listed Building Consent application for reroofing the front 'butt

  Received 17 Aug, published by the council 24 Aug 2026 Heritage and listed buildings
• P2026/2272/LBC Granted

  355 St John Street, London, EC1V 4LB

  Replacement of internal flat entrance doors, architraves and fanlights, install

  Received 27 Aug, published by the council 7 Sep 2026 Heritage and listed buildings
• P2026/2309/LBC Granted

  27 Barnsbury Park, London, N1 1HQ

  Replacement of internal flat entrance doors, architraves and fanlights, install

  Received 2 Sep, published by the council 7 Sep 2026 Heritage and listed buildings
• P2026/2597/LBC Awaiting decision

  28, Gerrard Road, London, N1 8BA

  The replacement of fittings and reorganisation of first floor bathroom, the adj

  Received 1 Oct, published by the council 5 Oct 2026 Heritage and listed buildings