20 Great Percy Street, London, WC1X 9QP

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

• P2026/1917/FUL Awaiting decision

  20, Great Percy Street, London, WC1X 9QP

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

  Submitted 23 Jul 2026 Full applications
• 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
• P2025/2307/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. 11 Aug 2025

   Received by Islington

2. 19 Aug 2025

   Validated

   Checked as complete and ready for consideration.

3. 13 Jan 2026

   Decision issued: Approve with conditions

4. 8 Aug 2026

   Added to PlanIndex

Islington granted permission on 13 January 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.

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.

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

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

  93% 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

  P2026/1917/FUL Submitted 23 Jul 2026 50 yards away

  87% historically approved · decision due ~17 Sep

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

  Awaiting decision Full applications 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

  P2025/2307/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

• 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