8 Chestnut Drive, Pinner, Harrow, HA5 1LY

1. 15 Apr 2024

   Received by Harrow

2. 2 Sep 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.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 12 Chestnut Drive, Pinner, Harrow, HA5 1LY

  PL/0581/26 Submitted 5 Mar 2026 0m away

  Decision due ~30 Apr

  Single storey side extension; external alterations (demolition of attached garage and store)

  Status unknown Householder Extension Demolition
  Small domestic

• 69 Chestnut Drive, Pinner, Harrow, HA5 1LX

  PL/1667/26 Submitted 17 Jun 2026 48m away

  Decision due ~12 Aug

  Single and first floor rear extensions; external alterations

  Status unknown Householder Extension
  Domestic

• 69 Chestnut Drive, Pinner, Harrow, HA5 1LX

  PL/1399/26 Submitted 21 May 2026 48m away

  Decision due ~16 Jul

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

  Status unknown Prior approval Extension
  Small domestic

• 18 Lulworth Drive, Rayners Lane, Pinner, Harrow, HA5 1NE

  PL/0226/25 Submitted 30 Jan 2025 58m away

  Single storey rear extension (Demolition of rear extension)

  Granted Householder Extension Demolition
  Small domestic

• 86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT

  PL/0361/25 Submitted 13 Feb 2025 86m away

  Conversion of garage to habitable room, Replace garage door with window in front elevation, Alterations to roof of garage to raise height, Single storey rear extension, Raised patio to rear, External alterations

  Granted Householder Extension Windows or glazing
  Small domestic

• 126 Cannonbury Avenue, Pinner, Harrow, HA5 1TT

  PL/0213/26 Submitted 26 Jan 2026 86m away

  Decision due ~23 Mar

  Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves

  Status unknown Prior approval Extension
  Small domestic

• PL/1797/26 Status unknown

  61 Uppingham Avenue, Stanmore, Harrow, HA7 2JB

  Single storey rear extension: 6.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves

  2 Jul 2026 Prior approval
• PL/1793/26 Status unknown

  36 Hinkler Road, Kenton, Harrow, HA3 9AU

  Single storey rear extension: 6.00 metres deep, 3.38 metres maximum height and 2.75 metres high to the eaves

  1 Jul 2026 Prior approval
• PL/1792/26 Status unknown

  3 Monro Gardens, Harrow Weald, Harrow, HA3 6HH

  Single storey rear extension: 6.50 metres deep, 3.20 metres maximum height and 3.00 metres high to the eaves

  1 Jul 2026 Prior approval
• PL/1794/26 Status unknown

  65 Dean Drive, Edgware, Stanmore, Harrow, HA7 1HB

  Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves

  1 Jul 2026 Prior approval
• PL/1749/26 Status unknown

  22 Hazelwood Close, Harrow, HA2 6HD

  Single storey rear extension: 4.50 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves

  29 Jun 2026 Prior approval