19 Thornhill Crescent, London, N1 1BJ

This site has had 4 applications since 2025: 2 approved, 0 refused.

• P2026/1608/LBC Status unknown

  19, Thornhill Crescent, London, N1 1BJ

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

  Submitted 22 Jun 2026 Heritage and listed buildings
• P2026/1609/FUL Status unknown

  19 Thornhill Crescent, London, N1 1BJ

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

  Submitted 22 Jun 2026 Householder
• P2025/2563/LBC Granted

  19 Thornhill Crescent, London, N1 1BJ

  Listed Building Consent in connection with the construction of a part width exte

  Decided 18 Feb 2026 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 24 Thornhill Crescent, London, N1 1BJ

  P2025/2503/TRE Submitted 17 Oct 2025 0m away

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

  Granted Trees

• 19 Thornhill Crescent, London, N1 1BJ

  P2025/2563/LBC Submitted 10 Sep 2025 0m away

  Listed Building Consent in connection with the construction of a part width exte

  Granted Heritage and listed buildings

• 19, Thornhill Crescent, London, N1 1BJ

  P2026/1608/LBC Submitted 22 Jun 2026 0m away

  92% historically approved · decision due ~24 Aug

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

  Status unknown Heritage and listed buildings

• 19 Thornhill Crescent, London, N1 1BJ

  P2026/1609/FUL Submitted 22 Jun 2026 0m away

  92% historically approved · decision due ~24 Aug

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

  Status unknown Householder Extension
  Domestic

• 21, THORNHILL CRESCENT, N1

  992237 Submitted 9 Nov 1999 31m 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 35m 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

• P2026/2323/FUL Status unknown

  146 St John Street, London, EC1V 4UA

  Alteration, extension and conversion of existing mixed-use buildings (office and

  7 Sep 2026 Householder
• P2026/1890/FUL Granted

  17 Belitha Villas, London, N1 1PE

  External lighting to front elevation, bin store and garden sauna to rear garden.

  21 Jul 2026 Householder
• P2026/2288/FUL Status unknown

  34 Sudeley Street, London, N1 8HW

  Retrospective application for reroofing the hidden front 'butterfly roof and rea

  4 Sep 2026 Householder
• P2026/1899/FUL Granted

  8 Sidney Grove, London, EC1V 7LP

  Proposed infilling of front first floor and second floor terrace areas and inser

  24 Jul 2026 Householder
• P2026/1627/FUL Granted

  5 Cumberland Gardens, London, WC1X 9AF

  Installation of stone paving to front steps, installation of ASHP in garden and

  22 Jun 2026 Householder