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 0m 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 0m 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 0m 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 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 - 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 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 - 3.12m Eaves height - 3m

  Granted Prior approval Extension 7 docs
  Small domestic

• 2 Fairway Avenue, London, NW9 0EJ

  20/3518 Submitted 28 Oct 2020 49m 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

• 26/0944 Refused

  11 Briar Road, Harrow, HA3 0DP

  Retention of two-storey side extension with associated front balcony; conversion of attached garage to habitable room; part single-storey side infill extension; single-storey rear extension with raised patio; installation of 3x side rooflights & 1x rear rooflight; replacement of roof-tiles, front door, external windows, garage door and chimney stack; installation of external lighting to the front elevation; and installation of 4x retractable bollards, hardstanding, associated soft-landscaping, drainage channels and soakaway within forecourt of dwellinghouse (amended description)

  14 Apr 2026 Householder
• 26/0945 Granted

  11 Briar Road, Harrow, HA3 0DP

  Proposed two-storey side extension with associated front balcony; conversion of attached garage to habitable room; part single-storey side infill extension; single-storey rear extension with raised patio; installation of 3x side rooflights & 2x rear rooflights; replacement of roof-tiles; retention of front door; alterations to external windows; replacement of uPVC garage door with timber garage door; removal of external lighting on front elevation; reinstatement of chimney stack; and installation of hardstanding, associated soft landscaping, drainage channels and soakaway within forecourt of dwellinghouse (amended description)

  14 Apr 2026 Householder
• 26/0859 Granted

  56 Okehampton Road, London, NW10 3EP

  Proposed demolition of side garage, erection of two storey side extension, replacement of rear doors to ground floor, replacement of 4x windows and removal of 1x window and 1x door to side elevation, new front boundary wall and bin storage to front garden.

  2 Apr 2026 Householder
• 26/1190 Refused

  244 Willesden Lane, Willesden, London, NW2 5RE

  Demolition of conservatory and shed, and erection of a single-storey side infill and rear extension, installation of a door to the side elevation and erection of a new masonry side boundary wall to the dwellinghouse.

  12 May 2026 Householder
• 26/0867 Refused

  14 Mount Pleasant Road, London, NW10 3EL

  Proposed erection of boundary wall, a bin store, pedestrian and vehicular access gates, associated hard and soft landscaping to front garden (revised description)

  2 Apr 2026 Householder