9 Rosslyn Crescent, Wembley, HA9 7NZ

1. 17 Feb 2026

   Received by Brent

2. 14 Apr 2026

   Decision issued: Certificate of Lawfulness - Refused

3. 10 Aug 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.

• 6 Rosslyn Crescent, Wembley, HA9 7NZ

  21/0391 Submitted 4 Feb 2021 50 yards away

  Certificate of lawfulness for proposed hip to gable loft extension with rear dormer and 3 front rooflights to dwellinghouse.

  Granted Lawful development Extension Loft or dormer 4 docs
  Domestic

• 6 Rosslyn Crescent, Wembley, HA9 7NZ

  21/1236 Submitted 6 Apr 2021 50 yards away

  Single storey rear extension with flat roof over existing rear extension of dwellinghouse.

  Granted Householder Extension 4 docs
  Small domestic

• 2 Rosslyn Crescent, Wembley, HA9 7NZ

  25/2718 Submitted 24 Sep 2025 50 yards away

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

  Granted Lawful development Extension 9 docs
  Small domestic

• 21 Lambert Walk, Wembley, HA9 7TR

  20/2374 Submitted 4 Aug 2020 100 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 - 3m Eaves height - 2.9m

  Granted Prior approval Extension 4 docs
  Small domestic

• 21 Lambert Walk, Wembley, HA9 7TR

  20/2347 Submitted 4 Aug 2020 100 yards away

  Certificate of lawfulness for proposed demolition of rear extension and erection of a new single storey rear extension to dwellinghouse

  Granted Lawful development Extension Demolition 5 docs
  Small domestic

• 65 Clarendon Gardens, Wembley, HA9 7LE

  20/3610 Submitted 6 Nov 2020 100 yards away

  Certificate of lawfulness for existing use of property as two self-contained flats (Class C3).

  Granted Lawful development New dwelling 6 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