19 Thornhill Crescent, London, N1 1BJ

This site has had 6 applications since 2024: 4 approved, 2 refused.

• P2026/1608/LBC Granted

  19, Thornhill Crescent, London, N1 1BJ

  Listed Building Consent application in connection with the construction of a low

  Decided 8 Sep 2026 Heritage and listed buildings
• P2026/1609/FUL Granted

  19 Thornhill Crescent, London, N1 1BJ

  Construction of a lower ground floor part width extension to the rear. (Associat

  Decided 8 Sep 2026 Householder
• P2025/2562/FUL Granted

  19 Thornhill Crescent, London, N1 1BJ

  Construction of a part width extension at rear lower ground floor level, creatio

  Decided 18 Feb 2026 Householder
• P2024/0593/FUL Refused

  19 Thornhill Crescent, London, N1 1BJ

  Erection of an extension at rear lower ground floor level

  Decided 21 Jan 2025 Householder
• P2024/0610/LBC Refused

  19 Thornhill Crescent, London, N1 1BJ

  Listed Building Consent in connection with the erection of an extension at rear lower ground floor level

  Decided 21 Jan 2025 Heritage and listed buildings

1. 10 Sep 2025

   Received by Islington

2. 23 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 18 Feb 2026

   Decision issued: Approve with conditions

4. 8 Aug 2026

   Added to PlanIndex

Islington granted permission on 18 February 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.

• 24 Thornhill Crescent, London, N1 1BJ

  P2025/2503/TRE Submitted 17 Oct 2025 50 yards away

  Ground works and associated root severance to install root barrier (16m in leng

  Granted Trees

• 19 Thornhill Crescent, London, N1 1BJ

  P2025/2562/FUL Submitted 10 Sep 2025 50 yards away

  Construction of a part width extension at rear lower ground floor level, creatio

  Granted Householder Extension
  Domestic

• 19, Thornhill Crescent, London, N1 1BJ

  P2026/1608/LBC Submitted 22 Jun 2026 50 yards away

  Listed Building Consent application in connection with the construction of a low

  Granted Heritage and listed buildings

• 19 Thornhill Crescent, London, N1 1BJ

  P2026/1609/FUL Submitted 22 Jun 2026 50 yards away

  Construction of a lower ground floor part width extension to the rear. (Associat

  Granted Householder Extension
  Domestic

• 21, THORNHILL CRESCENT, N1

  992237 Submitted 9 Nov 1999 50 yards away

  Listed Building Consent in connection with internal alterations, new windows and removal of render in connection with the refurbishment of the property. APPLICANT'S PLAN NOS.: 10697/03, 04 as existing; 10697/02A and unnumbered sketches of rear conservatory details, rear basement doors and mansard level casement windows

  Granted Heritage and listed buildings Extension Loft or dormer +1 1 doc

• 32 Thornhill Crescent, London, N1 1BJ

  P2023/0196/LBC Submitted 19 Jan 2023 50 yards away

  Internal work including damp treatment and changes to the layout. Reinstating staircase between upper and lower ground floors as permitted in 2006 under consents P052853 & P052862.

  Withdrawn Heritage and listed buildings 5 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