99 Tintern Avenue, London, NW9 0RH

1. 8 Sep 2025

   Received by Brent

2. 3 Nov 2025

   Decision issued: Permission Granted

3. 11 Aug 2026

   Added to PlanIndex

Brent granted permission on 3 November 2025, 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.

• 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

• 19 Tintern Avenue, London, NW9 0RH

  20/4234 Submitted 18 Dec 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 - 3.12m Eaves height - 3m

  Granted Prior approval Extension 7 docs
  Small domestic

• 2 Fairway Avenue, London, NW9 0EJ

  20/3518 Submitted 28 Oct 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 - 3.3m Eaves height - 2.9m

  Granted Prior approval Extension 6 docs
  Small domestic

• 26/2300 Awaiting decision

  22 Plympton Avenue, London, NW6 7TJ

  Proposed single-storey side infill extension, replacement of ground floor rear door with window, and replacement of ground floor rear windows with sliding doors to dwellinghouse

  Received 10 Sep, published by the council 21 Sep 2026 Householder
• 26/2292 Awaiting decision

  116 Stag Lane, Edgware, HA8 5LL

  Demolition of existing side store and proposed single store side to rear extension, first floor part side and rear extension, front porch extension, hip to gable extension, rear dormer window with 4x front rooflights and removal of chimney stack to the dwellinghouse.

  Received 9 Sep, published by the council 21 Sep 2026 Householder
• 26/2264 Awaiting decision

  19 Littleton Road, Harrow, HA1 3SY

  Proposed demolition of existing garage, single storey side extension and single storey rear extension, and erection of a two-storey side extension, part single and part two storey rear extension, 1x side and 1x rear dormer extension, conversion of garage into habitable space with replacement of garage door with window, alteration to front, rear and side fenestration and removal of chimney to dwellinghouse.

  Received 7 Sep, published by the council 21 Sep 2026 Householder
• 26/2262 Awaiting decision

  1 Chestnut Grove, Wembley, HA0 2LX

  Demolition of existing conservatory, part two storey rear extension, single storey structure to side extension & front porch and erection of single-storey side to rear extension, erection of first floor rear extension, alterations to raised patio, addition of hipped roof to first-floor side extension, 1x front & 1x rear rooflight, replacement of roof tiles, alterations to fenestrations, rendering to elevations, front porch canopy with pillars, new front door & new garage door to dwellinghouse

  Received 7 Sep, published by the council 21 Sep 2026 Householder
• 26/2260 Awaiting decision

  19 Mitchell Way, London, NW10 0PT

  Proposed two storey rear extension and front porch extension with canopy to dwellinghouse.

  Received 4 Sep, published by the council 21 Sep 2026 Householder