20, Great Percy Street, London, WC1X 9QP

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

• P2026/1918/LBC Awaiting decision

  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

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 53 days over the applications it decided in the last year.

This application is with Islington for determination, against a statutory target of eight weeks. Over the last year Islington decided full applications in a median of 55 days. More in our guide to how long planning decisions take.

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.

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

  P2026/1918/LBC Submitted 17 Jul 2026 50 yards away

  94% historically approved · decision due ~17 Sep

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

  Awaiting decision Heritage and listed buildings Extension

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

  P2026/1600/AOD Submitted 18 Jun 2026 50 yards 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 50 yards 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 50 yards 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 50 yards 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 50 yards 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

• P2025/2999/FUL Granted

  85 Charterhouse Street, London, EC1M 6HJ

  Change of Use from existing mixed use (restaurant/nightclub) Sui Generis Use Class to a Class E (Commercial) Use Class across the whole building. Additional works include the creation of a roof level terrace space and the refurbishment of an existing terrace at rear first floor level, new windows to the front and rear elevation, replacement of mechanical plant and machinery at roof level, refurbishment of façade and improvements to the existing entrance.

  Received 22 Oct, published by the council 25 Jul 2026 Full applications
• P2026/1382/FUL Granted

  7, Penn Road, London, N7 9RD

  Replacement of single-glazed windows and doors with double-glazed timber windows

  Received 14 Aug, published by the council 23 Aug 2026 Full applications
• P2026/2568/FUL Awaiting decision

  63, Mowatt Close, London, N19 3XZ

  Replacement of existing windows with double glazed UPVC windows

  5 Oct 2026 Full applications
• P2026/2595/FUL Awaiting decision

  Flat D, 44 Tufnell Park Road, London, N7 0DT

  Erection of a single-storey lower ground floor extension, together with internal alterations to convert the existing self-contained studio flat to a 1-bedroom, 2-person unit

  Received 2 Oct, published by the council 11 Oct 2026 Full applications
• P2026/2514/FUL Status unknown

  4-6 Baltic Street East, London, EC1Y 0UJ

  Replacement timber shopfronts, replacement double-glazed timber casement and sas

  Received 30 Sep, published by the council 1 Oct 2026 Full applications