Thornhill House, Thornhill Road, London, N1 1PB

1. 17 Mar 2023

   Received by Islington

2. 11 May 2023

   Decision issued: Approve with conditions

3. 19 Sep 2026

   Added to PlanIndex

Islington granted permission on 11 May 2023, 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 11 Thornhill Houses, 88 Thornhill Road, London, N1 1PA

  P2021/2055/FUL Submitted 14 Jul 2021 50 yards away

  Replacement of existing 4 no. single glazed timber windows with timber frame double glazed units at front ground floor level to Flat 11.

  Granted Full applications Windows or glazing 11 docs

• 9 Barnsbury Park, London, N1 1HH

  P2021/1996/TRE Submitted 8 Jul 2021 50 yards away

  Beech Tree Close (various locations - see site plan) 2 Locust Tree - Crown lift to 3.5m all round & reduce lateral crown spread max 1m. 4 Locust Tree - Reduce to give 2 metres clearance from building. 6 Silver Birch - Lift crown to 4 m all round. Cut back from building to give 1m clearance. 7 Beech - Lift crown to 3.5m all round & cut back to give 1m clearance from building.

  Granted Trees 3 docs

• 39 Thornhill Road, London, N1 1JS

  P2025/3541/FUL Submitted 15 Dec 2025 50 yards away

  Erection of roof extension with dormer windows

  Refused Householder Extension Loft or dormer +1
  Domestic

• 37 Thornhill Road, London, N1 1JS

  P2025/3540/FUL Submitted 15 Dec 2025 50 yards away

  92% historically approved · decision due ~9 Feb

  Erection of roof extension with dormer windows, alterations to front garden incl

  Awaiting decision Householder Extension Loft or dormer +1
  Domestic

• 39, Thornhill Road, London, N1 1JS

  P2026/0305/TRE Submitted 9 Feb 2026 50 yards away

  T1 - Magnolia - reduce crown by 1-1.5m (not beyond previous points of reduction

  Granted Trees

• Flat B, 33 Belitha Villas, London, N1 1PE

  P2021/2359/TRE Submitted 11 Aug 2021 50 yards away

  Rear garden T1 - sycamore tree (14m) - sever ivy at base of tree and remove bulk of ivy from crown, reduce crown by up to 3m.

  Granted Trees 3 docs

• P2026/2442/FUL Status unknown

  Flat B, 33 Landseer Road, London, N19 4JU

  Erection of rear dormer roof extension, installation of front rooflights

  Received 15 Sep, published by the council 21 Sep 2026 Full applications
• P2026/2441/FUL Status unknown

  Falcon Court, City Garden Row, London, N1 8EY

  Replacement of the existing electrical infrastructure, comprising of new latera

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• P2026/2400/FUL Awaiting decision

  196 City Cloisters, Old Street, London, EC1V 9FR

  Installation of two dry riser inlets at ground floor level, to the Old Street el

  Received 11 Sep, published by the council 15 Sep 2026 Full applications
• P2026/2394/FUL Awaiting decision

  25a, Prah Road, London, N4 2RB

  Alterations to the garden only of 25A Prah Road; including: removal of existing

  Received 11 Sep, published by the council 15 Sep 2026 Full applications
• P2026/2407/FUL Awaiting decision

  177B Hemingford Road, London, N1 1DA

  Proposed roof extension comprising rear mansard and a recessed front roof terrac

  Received 11 Sep, published by the council 22 Sep 2026 Full applications