146 Princes Avenue, London, NW9 9JE

1. 14 Oct 2021

   Received by Brent

2. 8 Dec 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.

• 142 Princes Avenue, London, NW9 9JE

  21/2018 Submitted 28 May 2021 50 yards away

  Conversion of dwellinghouse into two self-contained flats, with proposed single-storey rear extension and single-storey side extension to ground-floor and front garden landscaping, bin storage and cycle storage and vehicle parking

  Granted Full applications New dwelling Extension 7 docs
  Small domestic

• 142 Princes Avenue, London, NW9 9JE

  24/2364 Submitted 23 Aug 2024 50 yards away

  Retain single storey outbuilding for use by Flat 2 only and white silicone render to existing single storey extension

  Granted Full applications Extension 5 docs
  Small domestic

• 166 Princes Avenue, London, NW9 9JE

  19/4018 Submitted 11 Nov 2019 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 - 3.15m Eaves height - 3m

  Granted Prior approval Extension 2 docs
  Small domestic

• 142 Princes Avenue, London, NW9 9JE

  20/2991 Submitted 22 Sep 2020 50 yards away

  Proposed conversion of dwelling to two flats, single storey rear extension to existing single storey extension, provision of parking, landscaping and bin / cycle storage to existing dwelling

  Refused Full applications New dwelling Extension 5 docs
  Several homes

• Kingsbury High School, Princes Avenue, London, NW9 9JR

  24/1990 Submitted 17 Jul 2024 50 yards away

  Details pursuant to condition 5 (Brick sample for extenal walls), of Full planning permission application reference 24/0192 dated 10 June 2024 for Proposed single storey front extensions to Kingsbury High School.

  Granted Conditions Extension 4 docs
  Small domestic

• Kingsbury High School, Princes Avenue, London, NW9 9JR

  25/0810 Submitted 19 Mar 2025 50 yards away

  Proposed construction of Multi Use Games Area (MUGA) Facility and cricket pitch and netting with fencing and lighting to the school.

  Granted Full applications 36 docs

• 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