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Planning application

19 Thornhill Crescent, London, N1 1BJ

Granted Islington P2025/2562/FUL Full Planning (Householder)

Works: Extension Domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

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

As published by the council, reference P2025/2562/FUL

Application record

Reference
P2025/2562/FUL
Type
Full Planning (Householder)
Decision
Granted As published: Approve with conditions
Received
10 Sep 2025
Validated
23 Sep 2025
Decided
18 Feb 2026
Postcode
N1 1BJ

Site history

Applications at this address on the Islington register

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
  • P2025/2563/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
  • 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

Timeline

Dates from the published record

  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

What this grant of permission means

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.

About householder applications

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.

Nearby applications

Within 0.3 miles

  • 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

    P2025/2563/LBC Submitted 10 Sep 2025 50 yards 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 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

In Islington

  • P2026/2615/FUL Awaiting decision

    23 Framfield Road, London, N5 1UU

    Erection of outrigger dormer extension and all associated works.

    Received 2 Oct, published by the council 11 Oct 2026 Householder
  • P2026/2593/FUL Awaiting decision

    1 Wyatt Road, London, N5 2JU

    Erection of mansard roof extension.

    Received 1 Oct, published by the council 2 Oct 2026 Householder
  • P2026/2124/FUL Granted

    13 Willow Bridge Road, London, N1 2LB

    Installation of mechanical plant comprising air source heat pumps and an air han

    Received 7 Aug, published by the council 19 Aug 2026 Householder
  • P2026/0821/FUL Granted

    32 Harberton Road, London, N19 3JR

    Retention of 1x bike store and 1x bin store within front garden

    Received 26 Mar, published by the council 25 Jul 2026 Householder
  • P2026/2571/FUL Awaiting decision

    3 Sotheby Road, London, N5 2UP

    Proposed replacement front boundary wall with railings, front garden alterations to enlarge lightwell, cycle and refuse storage and refurbished stone front steps.

    Received 29 Sep, published by the council 11 Oct 2026 Householder