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Planning application

20, Great Percy Street, London, WC1X 9QP

Status unknown Islington P2026/1917/FUL Full Planning Application

Works: Extension

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

Proposal

Rear extension at ground floor rebuilt and extended, with rear lightwell infill

As published by the council, reference P2026/1917/FUL

Application record

Reference
P2026/1917/FUL
Type
Full Planning Application
Received
23 Jul 2026
Validated
23 Jul 2026
Postcode
WC1X 9QP

Site history

Applications at this address on the Islington register

This site has had 5 applications since 2025: 3 approved, 0 refused.

  • P2026/1918/LBC Status unknown

    20, Great Percy Street, London, WC1X 9QP

    Rear extension at ground floor rebuilt and extended, with rear lightwell infill

    Submitted 17 Jul 2026 Heritage and listed buildings
  • P2026/1600/AOD Granted

    20, Great Percy Street, London, WC1X 9QP

    Approval of details pursuant to condition 4 ( plumbing and ventilation details)

    Decided 20 Aug 2026
  • P2025/2306/FUL Granted

    20 Great Percy Street, London, WC1X 9QP

    Rear extension at ground floor rebuilt and extended, with rear lightwell infill

    Decided 13 Jan 2026 Householder
  • P2025/2307/LBC Granted

    20 Great Percy Street, London, WC1X 9QP

    Rear extension at ground floor rebuilt and extended, with rear lightwell infill

    Decided 13 Jan 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 23 Jul 2026

    Received by Islington

  2. 28 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 17 September 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.

Checking the current position

The published feed does not show a live status for this application; the register on Islington's own portal holds the authoritative version.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 20, Great Percy Street, London, WC1X 9QP

    P2026/1918/LBC Submitted 17 Jul 2026 0m away

    92% historically approved · decision due ~17 Sep

    Rear extension at ground floor rebuilt and extended, with rear lightwell infill

    Status unknown Heritage and listed buildings Extension

  • 20, Great Percy Street, London, WC1X 9QP

    P2026/1600/AOD Submitted 18 Jun 2026 0m away

    Approval of details pursuant to condition 4 ( plumbing and ventilation details)

    Granted

  • 20 Great Percy Street, London, WC1X 9QP

    P2025/2306/FUL Submitted 11 Aug 2025 0m away

    Rear extension at ground floor rebuilt and extended, with rear lightwell infill

    Granted Householder Extension
    Domestic

  • 20 Great Percy Street, London, WC1X 9QP

    P2025/2307/LBC Submitted 11 Aug 2025 0m away

    Rear extension at ground floor rebuilt and extended, with rear lightwell infill

    Granted Heritage and listed buildings Extension

  • 5 Cumberland Gardens London, WC1X 9AF

    P2025/3676/FUL Submitted 23 Dec 2025 40m away

    Replacement of existing timber windows and doors with double-glazed timber windows/doors.

    Granted Householder Windows or glazing 10 docs
    Domestic

  • 5 Cumberland Gardens, London, WC1X 9AF

    P2021/1018/FUL Submitted 1 Apr 2021 40m away

    Repairs to the roof of the house including renewing the existing felt with a new, breathable felt; replacing existing slates with Spanish natural slates; renewing lead flashings; renewing the lead box gutter; replacing the rotten sections of the window frame of the dormer window with like for like matching wooden frame; removing and renewing areas of damaged cement work on parapet walls (Listed building consent also submitted ref. P2021/1077/LBC)

    Granted Householder Loft or dormer Windows or glazing 16 docs
    Domestic

In Islington

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  • P2026/2385/FUL Awaiting decision

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  • P2026/2370/FUL Awaiting decision

    Flat C, 60 Seven Sisters Road, London, N7 6AA

    Loft conversion and rear dormer extension.

    8 Sep 2026 Full applications