24 Girton Avenue, London, NW9 9SX

1. 9 Apr 2021

   Received by Brent

2. 1 Jun 2021

   Decision issued: Certificate of Lawfulness - Granted

3. 20 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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 24 Girton Avenue, London, NW9 9SX

  21/0751 Submitted 2 Mar 2021 0m away

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.84m Eaves height - 3m

  Granted Prior approval Extension 7 docs
  Small domestic

• 2 Girton Avenue, London, NW9 9SX

  25/3600 Submitted 30 Dec 2025 0m away

  Single storey side extension to the dwellinghouse.

  Granted Householder Extension 6 docs
  Small domestic

• 27 Girton Avenue, London, NW9 9TH

  24/2551 Submitted 6 Sep 2024 120m away

  Certificate of lawfulness for proposed use of some space in the bedroom to provide a private taxi booking office to the dwellinghouse.

  Granted Lawful development 4 docs
  Domestic

• 31 Girton Avenue, London, NW9 9TH

  24/2073 Submitted 26 Jul 2024 120m away

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.21m Eaves height - 3m

  Granted Prior approval Extension 6 docs
  Small domestic

• Red Cross Building, Westmoreland Road, London, NW9 9BF

  25/0581/TELN Submitted 27 Oct 2025 140m away

  79% historically approved · decision due ~22 Dec

  Telecommunications notification for Removal and replacement of 3no. existing antennas with 3no. antennas, Removal and replacement of 3no. RRUs with 9no. RRUs, Installation of 1no. 300mm dish and all associated ancillary development thereto at Red Cross Building, Bowmans Trading Estate, West Moreland Road, Queensbury, London, United Kingdom

  Awaiting decision

• 99 Winchester Avenue, Kingsbury, London, NW9 9TA

  26/1116 Submitted 5 May 2026 151m away

  Certificate of lawfulness for proposed hip to gable roof-end, rear dormer extension and 2x front rooflights to dwellinghouse.

  Granted Lawful development Extension Loft or dormer 5 docs
  Domestic

• 26/0783 Granted

  3 Hamilton Road, London, NW10 1NU

  Certificate of lawfulness for existing single-storey rear extension to dwellinghouse

  26 Mar 2026 Lawful development
• 26/1946 Awaiting decision

  120 Gladstone Park Gardens, London, NW2 6RL

  Certificate of lawfulness for proposed rear dormer extension with Juliet balcony, hip to gable roof extension, installation of 1x window to side elevation and 2x front rooflights to dwellinghouse.

  30 Jul 2026 Lawful development
• 26/1208 Granted

  50 Ballogie Avenue, London, NW10 1TA

  Certificate of lawfulness for proposed rear dormer extension, hip to gable roof extension, alteration to fenestration and installation of rooflights to the dwellinghouse

  13 May 2026 Lawful development
• 26/1015 Refused

  5 Midholm, Wembley, HA9 9LJ

  Certificate of lawfulness for proposed installation of solar panels to the side and rear roofslope of the dwellinghouse.

  23 Apr 2026 Lawful development
• 26/1176 Refused

  47 Barn Rise, Wembley, HA9 9NH

  Certificate of lawfulness for proposed single storey outbuilding in rear garden of the dwellinghouse.

  11 May 2026 Lawful development