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Planning application

6 Compton Terrace, London

Awaiting decision Islington P2026/2401/LBC Listed Building

Works: Extension Loft or dormer Windows or glazing

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

Proposal

Erection of a mansard roof extension to replace the existing butterfly roof, including dormer windows with internal alterations to form a new staircase providing access to the mansard accommodation.

As published by the council, reference P2026/2401/LBC

Application record

Reference
P2026/2401/LBC
Type
Listed Building
Status
Pending As published: VALIDATED
Received
11 Sep 2026
Validated
23 Sep 2026

Site history

Applications at this address on the Islington register

This site has had 2 applications since 2026.

  • P2026/2402/FUL Awaiting decision

    6 Compton Terrace, London

    Erection of a mansard roof extension to replace the existing butterfly roof, including dormer windows with internal alterations to form a new staircase providing access to the mansard accommodation. (Listed Building Consent P2026/2401/LBC also submitted)

    Submitted 11 Sep 2026 Full applications

Timeline

Dates from the published record

  1. 11 Sep 2026

    Received by Islington

  2. 23 Sep 2026

    Validated

    Checked as complete and ready for consideration.

  3. 11 Oct 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 18 November 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 53 days over the applications it decided in the last year.

Cases linked to this one on the register

1 later application on the register refers to this one:

  • P2026/2402/FUL Awaiting decision

    6 Compton Terrace, London

    Erection of a mansard roof extension to replace the existing butterfly roof, including dormer windows with internal alterations to form a new staircase providing access to the mansard accommodation. (Listed Building Consent P2026/2401/LBC also submitted)

    Submitted 11 Sep 2026 Full applications

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 68 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 0.3 miles

  • 6 Compton Terrace, London

    P2026/2402/FUL Submitted 11 Sep 2026 50 yards away

    87% historically approved · decision due ~18 Nov

    Erection of a mansard roof extension to replace the existing butterfly roof, including dormer windows with internal alterations to form a new staircase providing access to the mansard accommodation. (Listed Building Consent P2026/2401/LBC also submitted)

    Awaiting decision Full applications Extension Loft or dormer +1 15 docs
  • Flat C 7 Compton Terrace, London

    P2025/2841/LBC Submitted 8 Oct 2025 50 yards away

    (a) Replacement ceiling (retrospective) and (b) removal of cornices (retrospective) and replacement addition of cornices to ceiling.

    Withdrawn Heritage and listed buildings 5 docs
  • 3 Compton Terrace, London, N1 2UN

    P2023/0454/FUL Submitted 13 Feb 2023 50 yards away

    Erection of a single storey lower ground floor rear extension, replacement of a door to the front lightwell and internal alterations.

    Granted Full applications Extension 11 docs
    Small domestic
  • 3 Compton Terrace, London, N1 2UN

    P2023/0483/LBC Submitted 13 Feb 2023 50 yards away

    Erection of a single storey lower ground floor rear extension, replacement of a door to the front lightwell and internal alterations.

    Granted Heritage and listed buildings Extension 2 docs
    Small domestic
  • 1, Flat 2, Compton Terrace, London, N1 2UN

    P2026/1097/LBC Submitted 27 Apr 2026 50 yards away

    Replacement of existing single-glazed timber sash windows with slimline double-glazed timber sash windows

    Granted Heritage and listed buildings Windows or glazing 3 docs
  • 213 - 215 Upper Street, London, N1 1RL

    P2025/3587/ADV Submitted 17 Jan 2026 50 yards away

    Retention of two aluminium framed acrylic retractable awnings with signage.

    Granted Advertising

In Islington

  • 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