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Planning application

12 Canonbury Square, London

Awaiting decision Islington P2026/0206/LBC Listed Building

Works: Windows or glazing

Relates to P2026/0205/FUL

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Replacement of traditional timber sash windows with like for like double glazed units (P2026/0205/FUL also submitted).

As published by the council, reference P2026/0206/LBC

Application record

Reference
P2026/0206/LBC
Type
Listed Building
Status
VALIDATED
Received
28 Jan 2026
Validated
11 Feb 2026
Ward
Laycock

Site history

Applications at this address on the Islington register

This site has had 3 applications since 2026: 1 approved, 0 refused.

  • P2026/0205/FUL Awaiting decision

    12 Canonbury Square, London

    Replacement of traditional timber sash windows with like for like double glazed units (P2026/0206/LBC also submitted).

    Submitted 28 Jan 2026 Householder
  • P2026/0012/TRE Granted

    12 Canonbury Square, London

    London Plane T1 (20M high, 850mm dia.) - Raise crown all around to 6 metres abo

    Decided 2 Feb 2026 Trees

Timeline

Dates from the published record

  1. 28 Jan 2026

    Received by Islington

  2. 11 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. 7 Sep 2026

    Status changed to VALIDATED

  5. Decision

    Awaiting decision

    Decision expected by 8 April 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Islington took a median of 52 days over the applications it decided in the last year.

Cases linked to this one on the register

  • P2026/0205/FUL Awaiting decision

    12 Canonbury Square, London

    Replacement of traditional timber sash windows with like for like double glazed units (P2026/0206/LBC also submitted).

    Submitted 28 Jan 2026 Householder

1 later application on the register refers to this one:

  • P2026/0205/FUL Awaiting decision

    12 Canonbury Square, London

    Replacement of traditional timber sash windows with like for like double glazed units (P2026/0206/LBC also submitted).

    Submitted 28 Jan 2026 Householder

What happens while it is decided

This application is with Islington for determination, against a statutory target of eight weeks. Over the last year Islington decided heritage and listed building applications in a median of 60 days. More in our guide to how long planning decisions take.

About heritage and listed building applications

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.

Nearby applications

Within 500 metres

  • 12 Canonbury Square, London

    P2026/0205/FUL Submitted 28 Jan 2026 0m away

    92% historically approved · decision due ~8 Apr

    Replacement of traditional timber sash windows with like for like double glazed units (P2026/0206/LBC also submitted).

    Awaiting decision Householder Windows or glazing 7 docs
    Domestic

  • 8 Canonbury Square, London, N1 2AU

    P2023/0410/LBC Submitted 8 Feb 2023 22m away

    Dismantling and relaying of rear elevation brickwork from 3rd floor to roof level.

    Granted Heritage and listed buildings 9 docs

  • 8, Canonbury Square, London, N1 2AU

    P2026/1692/LBC Submitted 26 Jun 2026 32m away

    92% historically approved · decision due ~14 Sep

    To consolidate the third floor front bedroom as a single room (with potential t

    Status unknown Heritage and listed buildings

  • 6 Canonbury Square, London, N1 2AU

    P2026/0778/FUL Submitted 20 Apr 2026 32m away

    Proposed installation of a prefabricated garden shed.

    Granted Householder
    Small domestic

  • 6, Canonbury Square, London, N1 2AU

    P2026/1171/LBC Submitted 5 May 2026 32m away

    The proposed works are the installation of a prefabricated garden shed.

    Granted Heritage and listed buildings
    Small domestic

  • 21 - 22, Ground Floor And Basement Maisonette, Canonbury Square, London, N1 2AL

    P2026/0763/TRE Submitted 20 Mar 2026 65m away

    100% historically approved · decision due ~18 May

    T1 & T2 – Lime (Tilia sp.) Crown reduction by approximately 20–25% to reduce height and lateral spread, selective crown thinning to improve light penetration, and removal of any dead, diseased or crossing branches. All works to be carried out in accordance with BS3998:2010. The proposed works are required to manage the size and spread of the trees, as the branches have become overextended within the garden setting. The works will help maintain a balanced crown, improve light to the garden, and ensure the trees remain suitable for their residential context. The proposals are minor in nature and will not adversely affect the health, appearance, or amenity value of the trees.

    Awaiting decision Trees 4 docs

In Islington

  • P2026/2457/COL Status unknown

    89 Steve Biko Road, London, N7 7JF

    Ceritification of Lawful Development (Proposed) for the change of use of a room

    16 Sep 2026 Heritage and listed buildings
  • P2026/2429/LBC Awaiting decision

    40, Kingsway Place, London, EC1R 0LU

    Full interior renovation consisting of alteration of existing plasterboard and

    14 Sep 2026 Heritage and listed buildings
  • P2026/2350/LBC Awaiting decision

    16 THORNHILL SQUARE LONDON N1 1BQ

    Install French oak herringbone parquet floor to principal rooms throughout, Ins

    14 Sep 2026 Heritage and listed buildings
  • P2026/2296/LBC Awaiting decision

    88 St John Street, London, EC1M 4EH

    Enlarging opening between rear restaurant area and kitchen, reorganising the co

    11 Sep 2026 Heritage and listed buildings
  • P2026/2392/LBC Awaiting decision

    34 Cloudesley Place, London, N1 0HZ

    Replacement of roof coverings, gutter linings and flashings [Full planning appli

    10 Sep 2026 Heritage and listed buildings