15 Birchen Grove, London, NW9 8RT

This site has had 3 applications since 2021: 2 approved, 1 refused.

• 21/3876 Granted

  15 Birchen Grove, London, NW9 8RT

  Prior approval for a single storey rear and single storey side to rear extensions to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m & 6m Maximum height - 3.25m & 3.25m Eaves height - 3m & 3m

  Decided 25 Nov 2021 Prior approval
• 21/2400 Granted

  15 Birchen Grove, London, NW9 8RT

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.25m Eaves height - 3m

  Decided 4 Aug 2021 Prior approval

1. 19 Aug 2021

   Received by Brent

2. 12 Oct 2021

   Decision issued: Certificate of Lawfulness - Refused

3. 10 Sep 2026

   Added to PlanIndex

Brent refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 35 Birchen Grove, London, NW9 8RT

  25/2750 Submitted 29 Sep 2025 50 yards away

  Demolition of side garage and existing rear extension and proposed single storey side and rear extension, hip to gable extension, rear dormer window with Juliet balcony and 3x front rooflights to front roofslope of the dwellinghouse (Revised Description).

  Granted Householder Extension Loft or dormer +2 12 docs
  Small domestic

• 25 Birchen Grove, London, NW9 8RT

  26/0301 Submitted 7 Feb 2026 50 yards away

  Certificate of lawfulness for proposed hip to gable extension, rear dormer window with 3x front rooflights to the dwellinghouse.

  Granted Lawful development Extension Loft or dormer +1 5 docs
  Domestic

• 15 Birchen Grove, London, NW9 8RT

  21/2400 Submitted 25 Jun 2021 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 - 3.25m Eaves height - 3m

  Granted Prior approval Extension 8 docs
  Small domestic

• 15 Birchen Grove, London, NW9 8RT

  21/3876 Submitted 15 Oct 2021 50 yards away

  Prior approval for a single storey rear and single storey side to rear extensions to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m & 6m Maximum height - 3.25m & 3.25m Eaves height - 3m & 3m

  Granted Prior approval Extension 9 docs
  Small domestic

• 14 Old Church Lane, London, NW9 8TD

  21/2624 Submitted 8 Jul 2021 100 yards away

  Retrospective application for single-storey side extension; redesign of front garden to include hard and soft landscaping, and associated boundary treatment with gated accesses, and supporting pillars to the dwellinghouse.

  Refused Householder Extension 5 docs
  Small domestic

• 20 Old Church Lane, London, NW9 8TD

  22/3710 Submitted 31 Oct 2022 100 yards away

  Proposed installation of new first-floor front opening with timber window and replacement of all front uPVC windows with timber windows to dwellinghouse (amended description)

  Granted Householder Windows or glazing 13 docs
  Domestic

• 26/2285 Awaiting decision

  137 Chatsworth Road, London, NW2 5QT

  Certificate of lawfulness for proposed use as supported housing

  Received 8 Sep, published by the council 21 Sep 2026 Lawful development
• 26/2277 Awaiting decision

  65 The Avenue, Wembley, HA9 9PH

  Certificate of lawfulness for proposed conversion of outbuilding into a gym and sauna and extension to the outbuilding in rear garden of the dwellinghouse.

  Received 8 Sep, published by the council 21 Sep 2026 Lawful development
• 26/2199 Awaiting decision

  Flat 8, 399 Neasden Lane North, London, NW10 0BD

  Certificate of lawfulness for existing use of rear unit 8 as a self-contained flat.

  Received 2 Sep, published by the council 21 Sep 2026 Lawful development
• 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
• 26/1946 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.

  Received 30 Jul, published by the council 10 Aug 2026 Lawful development