18 Tintern Avenue, London, NW9 0RJ

1. 9 Jul 2026

   Received by Brent

2. 23 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 2 Aug 2026

   Added to PlanIndex

4. 17 Sep 2026

   Decision issued: Permission Granted

Brent granted permission on 17 September 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.

The published feed does not state which type of application this is; the register entry on Brent's portal will say. Our guide explains the common types.

• 34 Tintern Avenue, London, NW9 0RJ

  24/3126 Submitted 5 Nov 2024 50 yards 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 - 3m Eaves height - 2.85m

  Granted Prior approval Extension 5 docs
  Small domestic

• 99 Tintern Avenue, London, NW9 0RH

  25/2553 Submitted 8 Sep 2025 50 yards away

  Demolition of side garage and existing front porch and erection of porch extension, two storey side extension, single storey rear extension and part first floor rear extension, hip to gable roof extension, rear dormer window with 1x front rooflight to the dwellinghouse.

  Granted Householder Extension Loft or dormer +2 9 docs
  Small domestic

• 25 Tintern Avenue, London, NW9 0RH

  20/2317 Submitted 3 Aug 2020 50 yards away

  Certificate of lawfulness for proposed removal of chimney, erection of hip to gable loft conversion with rear dormer window and juliet balcony; two rooflights to front roof slope and one window in gable end of dwellinghouse

  Granted Lawful development Loft or dormer Windows or glazing 10 docs
  Domestic

• 19 Tintern Avenue, London, NW9 0RH

  21/0377 Submitted 3 Feb 2021 50 yards away

  Certificate of lawfulness for proposed hip to gable loft conversion with rear dormer and juliet balcony; new window to side elevation, front porch extension, single storey rear extension and single storey detached outbuilding in rear garden of dwellinghouse.

  Granted Lawful development Extension Loft or dormer +1 11 docs
  Small domestic

• 19 Tintern Avenue, London, NW9 0RH

  26/0907 Submitted 9 Apr 2026 50 yards away

  Proposed single storey outbuilding in the rear garden to the dwellinghouse (retrospective)

  Granted Householder 7 docs
  Small domestic

• 87 Tintern Avenue, London, NW9 0RH

  20/1439 Submitted 14 May 2020 50 yards 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 - 3m Eaves height - 2.8m

  Granted Prior approval Extension 10 docs
  Small domestic