15 Springfield Mount, London, NW9 0SN

1. 12 Jul 2021

   Received by Brent

2. 3 Sep 2021

   Decision issued: Certificate of Lawfulness - Granted

3. 30 Aug 2026

   Added to PlanIndex

Brent granted permission on 3 September 2021, 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.

• 22 Springfield Mount, London, NW9 0SL

  26/2452 Submitted 28 Sep 2026 50 yards away

  79% historically approved · decision due ~23 Nov

  Certificate of lawfulness for single-storey rear extension to dwellinghouse.

  Awaiting decision Extension 4 docs
  Small domestic

• 14 Springfield Mount, London, NW9 0SL

  21/2685 Submitted 13 Jul 2021 50 yards away

  Demolition of existing garage, double storey side extension and single storey rear extension to dwellinghouse.

  Granted Householder Extension Demolition 5 docs
  Small domestic

• 14 Springfield Mount, London, NW9 0SL

  21/1757 Submitted 13 May 2021 50 yards away

  Proposed demolition of garage and rear extension, erection of new single storey rear extension and two storey side extension to dwellinghouse.

  Refused Full applications Extension Demolition 6 docs
  Small domestic

• 18 Springfield Mount, London, NW9 0SL

  24/2413 Submitted 28 Aug 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 - 4m Maximum height - 3.45m Eaves height - 3m

  Refused Prior approval Extension 8 docs
  Small domestic

• 25 Lodore Gardens, London, NW9 0DP

  21/1806 Submitted 17 May 2021 100 yards away

  Certificate of Lawfulness for a hip to gable end roof extension with rear dormer window, THREE(3) front roof-lights, and a front porch to dwellinghouse.

  Granted Lawful development Extension Loft or dormer +1 5 docs
  Small domestic

• 25 Lodore Gardens, London, NW9 0DP

  21/2703 Submitted 13 Jul 2021 100 yards away

  Proposed single storey rear extension to dwellinghouse.

  Granted Householder Extension 6 docs
  Small 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
• 26/1208 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