25 Ambleside Road, London, NW10 3UH

1. 25 Jan 2021

   Received by Brent

2. 22 Mar 2021

   Decision issued: Certificate of Lawfulness - Refused

3. 20 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.

• 19 Ambleside Road, London, NW10 3UH

  20/1206 Submitted 20 Apr 2020 50 yards away

  Proposed conversion of dwellinghouse currently used as a 3 bedroom, 5 person HMO to two flats, including rear side extension, blocking up of a side window to dwellinghouse and roof extension with rear dormer window and insertion of 2 front rooflights to the building.

  Refused Full applications New dwelling Extension +2 6 docs
  Several homes

• 19 Ambleside Road, London, NW10 3UH

  20/4000 Submitted 3 Dec 2020 50 yards away

  Proposed conversion of dwellinghouse currently used as a 3 bedroom, 5 person HMO to two flats, including rear side extension, blocking up of a side window to dwellinghouse

  Granted Full applications New dwelling Extension +1 8 docs
  Several homes

• 20A Ambleside Road, London, NW10 3UJ

  21/1896 Submitted 21 May 2021 50 yards away

  Retrospective application for outbuilding at rear garden of ground floor flat.

  Refused Full applications 6 docs

• 110 Roundwood Road, London, NW10 9UN

  20/1753 Submitted 16 Jun 2020 100 yards away

  Proposed conversion of dwellinghouse into 2 self contained flats

  Granted Full applications New dwelling 14 docs
  Domestic

• 121B Roundwood Road, London, NW10 9UL

  21/3518 Submitted 16 Sep 2021 100 yards away

  Single storey rear and side extension to ground floor flat

  Refused Full applications Extension 4 docs
  Small domestic

• 135 Roundwood Road, London, NW10 9UL

  20/2647 Submitted 27 Aug 2020 100 yards away

  Erection of single storey wrap-around extension to dwellinghouse.

  Granted Full applications Extension 21 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