Former National Grid Site, Marsh Lane, Stanmore, HA7 2SN

1. 19 Dec 2025

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

This application sits outside the common categories, which can include county matters such as minerals and waste, works by statutory undertakers, demolition notifications and other less frequent procedures. The council record linked below sets out the specific procedure that applies, and the description above is taken directly from the published register.

More on other applications in our guide

• 12 Green Verges, Stanmore, Harrow, HA7 2SN

  PL/0425/26 Submitted 17 Feb 2026 0m away

  Decision due ~14 Apr

  Single storey rear extension: 6.00 metres deep, 3.24 metres maximum height and 3.00 metres high to the eaves

  Status unknown Prior approval Extension
  Small domestic

• 12 Green Verges, Stanmore, Harrow, HA7 2SN

  PL/0925/26 Submitted 2 Apr 2026 0m away

  Decision due ~28 May

  Single storey front extension incorporating porch; Single and two storey side to rear extension; Single storey rear extension; Rear dormer; Roof lights in front side and rear roof slopes (Demolition of conservatory; rear extension and detached garage to rear)

  Status unknown Householder Extension Loft or dormer +1
  Small domestic

• 12 Green Verges, Stanmore, Harrow, HA7 2SN

  PL/0926/26 Submitted 2 Apr 2026 0m away

  Decision due ~28 May

  Certificate of Lawful Development (Proposed): Single storey outbuilding in rear garden

  Status unknown Lawful development
  Small domestic

• Land At Junction Of Wemborough Road And Bromfield, Stanmore, HA7 2EQ

  PL/3009/25 Submitted 20 Nov 2025 135m away

  Decision due ~15 Jan

  Electronic Communications Notification: Installation of 17.5m street pole supporting x6 antennas and x2 300mm dishes; installation of x3 equipment cabinets, internal cabin works and ancillary works

  Status unknown

• Land At The Junction Of Wemborough Road And Bromfield, Stanmore, HA7 2EQ

  PL/0260/26 Submitted 30 Jan 2026 135m away

  Decision due ~27 Mar

  Prior approval telecommunications notification: installation of a 17.5 metre high monopole supporting 6 no. antennas and 2 no. 300mm transmission dishes, the installation of 3 no. equipment cabinets; ancillary works

  Status unknown Telecoms

• Land At Junction Of Wemborough Road And Bromfield, Stanmore, HA7 2EQ

  PL/1817/24/PRIOR Submitted 3 Jul 2024 135m away

  Prior Approval Telecommunications Notification: Installation of a 20 metre high (5G) monopole supporting 6 no. antennas and 2 no. 300mm transmission dishes; Installation of 3 no. equipment cabinets; ancillary works

  Refused Telecoms

• PL/1782/26 Status unknown

  Thrale Farm, Oxley Lane, Harrow, HA3 6SP

  Prior Approval for Agricultural building : Barn for Hay, Machinery Storage and Operation and Storage

  30 Jun 2026 Other
• PL/0681/26/PRIOR Status unknown

  Thrale Farm, Oxley Lane, Harrow, HA5 4AS

  Prior Approval for Agricultural building : Barn for Hay, Machinery Storage and Operation and Storage

  13 Mar 2026 Other
• PL/0336/26/PRIOR Status unknown

  Thrale Farm, Oxley Lane, Harrow, HA5 4AS

  Prior Approval for Agricultural building : Barn for Hay, Machinery Storage and Operation and Storage

  6 Feb 2026 Other
• PL/0046/26/PRIOR Status unknown

  Thrale Farm, Harrow, HA5 4AS

  Prior Approval for Agricultural building : Barn for Hay, Machinery Storage and Operation and Storage

  9 Jan 2026 Other
• PL/3238/25/PRIOR Refused

  Thrale Farm, Harrow, HA5 4AS

  Prior Approval for Agricultural building : Barn for Hay, Machinery Storage and Operation and Storage

  12 Dec 2025 Other