3C Sellons Avenue, London, NW10 4HJ

1. 7 Dec 2020

   Received by Brent

2. 1 Feb 2021

   Decision issued: Certificate of Lawfulness - Refused

3. 20 Aug 2026

   Added to PlanIndex

This application is at appeal, which passes the decision from the council to the national planning inspectorate, or in Scotland usually to a local review body first. The appeal considers the scheme afresh against the same policies.

Anyone who commented on the original application is normally notified and can comment again within the appeal deadline. Appeal decisions take months rather than weeks, and the outcome replaces the council's decision.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 37B Sellons Avenue, London, NW10 4HJ

  20/2912 Submitted 16 Sep 2020 0m away

  Hip to Gable loft conversion with rooflights over existing outrigger, installation of windows to front facing elevation, removal of chimney stack, front boundary treatment, cycle and waste storage in front forecourt

  Granted Full applications Extension Loft or dormer +1 21 docs

• 73B Sellons Avenue, London, NW10 4HJ

  24/2423 Submitted 29 Aug 2024 0m away

  Proposed rear dormer with juliet balcony, roof terrace over rear outrigger with privacy screening and installation of 2x front rooflights to first floor flat

  Granted Full applications Extension Loft or dormer 6 docs

• 75B Sellons Avenue, London, NW10 4HJ

  21/0498 Submitted 12 Feb 2021 0m away

  Rear dormer window with juliet balcony, 2 front rooflights, creation of roof terrace with privacy screen on rear projection to first floor flat

  Granted Full applications Loft or dormer Windows or glazing 5 docs

• 24A-D, Sellons Avenue, London, NW10 4HL

  25/2920 Submitted 15 Oct 2025 67m away

  Replacement of timber windows with double glazed uPVC windows and rear patio doors to flats

  Granted Full applications New dwelling Windows or glazing 11 docs

• 42 Harlesden Gardens, London, NW10 4EX

  26/1866 Submitted 21 Jul 2026 89m away

  79% historically approved · decision due ~15 Oct

  Demolition of existing side-to-rear extension and proposed single-storey side-and rear infill ext...

  Awaiting decision Extension Demolition 8 docs
  Small domestic

• 52A Harlesden Gardens, London, NW10 4EX

  26/0032 Submitted 7 Jan 2026 91m away

  Proposed single-storey side-to-rear extension to ground floor flat

  Granted Full applications Extension 10 docs
  Small domestic

• 26/0783 Granted

  3 Hamilton Road, London, NW10 1NU

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

  26 Mar 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.

  30 Jul 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

  13 May 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.

  23 Apr 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.

  11 May 2026 Lawful development