25 Thirlmere Gardens, Wembley, HA9 8RH

1. 15 Apr 2026

   Received by Brent

2. 21 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 12 Jun 2026

   Decision issued: Certificate of Lawfulness - Granted

4. 25 Jul 2026

   Added to PlanIndex

Brent granted permission on 12 June 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 33 Thirlmere Gardens, Wembley, HA9 8RH

  21/2307 Submitted 21 Jun 2021 50 yards away

  Proposed part one storey part two storey side and rear extension, new front porch, rear dormer window, two front rooflights and a rear outhouse to dwellinghouse.

  Granted Householder Extension Loft or dormer +1 9 docs
  Small domestic

• 7 Thirlmere Gardens, Wembley, HA9 8RH

  21/1922 Submitted 25 May 2021 50 yards away

  Retrospective permission for demolition of single storey rear conservatory and erection of new single storey rear extension

  Granted Householder Extension Demolition 9 docs
  Small domestic

• 1 Thirlmere Gardens, Wembley, HA9 8RH

  20/0800 Submitted 9 Mar 2020 50 yards away

  Proposed conversion of dwelling into two-self contained residential flats with erection of a single storey rear extension, front infill extension to garage, replacement window and insertion of new door to rear elevation, subdivision of rear garden, provision of one off-street parking space, cycle and refuse storage

  Refused Full applications New dwelling Extension +1 8 docs
  Small domestic

• 31 Thirlmere Gardens, Wembley, HA9 8RH

  25/3226 Submitted 18 Nov 2025 50 yards away

  Proposed front porch extension, replacement of garage door with double doors, single storey side and rear extension, removal of chimney stack and alterations to the rear patio of the dwellinghouse.

  Granted Householder Extension 5 docs
  Small domestic

• 33 Thirlmere Gardens, Wembley, HA9 8RH

  24/2690 Submitted 24 Sep 2024 50 yards away

  Proposed part single and part two storey side and rear extension including garage, rear dormer window with 2x front rooflights, front porch extension and single storey rear outbuilding to the dwellinghouse.

  Granted Householder Extension Loft or dormer +1 9 docs
  Small domestic

• 33 Thirlmere Gardens, Wembley, HA9 8RH

  15/0307 Submitted 26 Jan 2015 50 yards away

  Erection of a part single and part two storey side and rear extension to include an integral garage and front porch (revised description).

  Granted Householder Extension 5 docs
  Small domestic

• 26/2093 Awaiting decision

  17 Buller Road, London, NW10 5BS

  Certificate of lawfulness for proposed alterations to front, side and rear fenestrations including installation of ground floor side oriel window and rear timber door to dwellinghouse

  Received 18 Aug, published by the council 21 Sep 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

  Received 13 May, published by the council 25 Jul 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.

  Received 23 Apr, published by the council 25 Jul 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.

  Received 11 May, published by the council 25 Jul 2026 Lawful development
• 26/1166 Refused

  66 Okehampton Road, London, NW10 3EP

  Certificate of lawfulness for proposed rear dormer and side dormer extension, 1x front rooflight, replacing side elevation window and door with aluminium frame windows and doors to dwellinghouse.

  Received 8 May, published by the council 25 Jul 2026 Lawful development