12 Windermere Avenue, London, NW6 6LN

This site has had 2 applications since 2021: 1 approved, 0 refused.

• 21/0564 Withdrawn

  12 Windermere Avenue, London, NW6 6LN

  Certificate of lawfulness for existing single storey outbuilding to dwellinghouse

  Decided 14 Apr 2021 Lawful development

1. 21 Apr 2021

   Received by Brent

2. 3 Jun 2021

   Decision issued: Certificate of Lawfulness - Granted

3. 20 Aug 2026

   Added to PlanIndex

Brent granted permission on 3 June 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.

• 6 Windermere Avenue, London, NW6 6LN

  22/0978 Submitted 15 Mar 2022 50 yards away

  Proposed single storey side infill and rear extensions to dwellinghouse

  Granted Householder Extension 6 docs
  Small domestic

• 32 Windermere Avenue, London, NW6 6LN

  21/2586 Submitted 7 Jul 2021 50 yards away

  Certificate of lawfulness for proposed single storey outbuilding/garden room at rear of dwellinghouse.

  Granted Lawful development 4 docs
  Small domestic

• 32 Windermere Avenue, London, NW6 6LN

  21/2585 Submitted 7 Jul 2021 50 yards away

  Non-material amendment (alterations to proposed fenestration to rear elevation) allowed under planning appeal ref: APP/T5150/D/20/3251302 dated 01/10/2020 of Householder reference 20/0556 for Proposed demolition of existing side extension and erection of a single storey side infill extension to dwellinghouse.

  Granted Amendments Extension Demolition +1 5 docs
  Small domestic

• 12 Windermere Avenue, London, NW6 6LN

  21/0564 Submitted 17 Feb 2021 50 yards away

  Certificate of lawfulness for existing single storey outbuilding to dwellinghouse

  Withdrawn Lawful development 2 docs
  Small domestic

• 16 Windermere Avenue, London, NW6 6LN

  25/2665 Submitted 18 Sep 2025 50 yards away

  Single storey rear infill extension, new front rooflight and alterations to openings.

  Granted Householder Extension Loft or dormer 8 docs
  Small domestic

• 20 Windermere Avenue, London, NW6 6LN

  26/1071 Submitted 27 Apr 2026 50 yards away

  Proposed demolition of rear conservatory, erection of single-storey side extension, single-storey rear extension, rear dormer extension, and installation of 2x rooflights to rear outrigger and 1x rear rooflight to dwellinghouse

  Granted Householder Extension Loft or dormer +1 14 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