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Planning application

20/2533

139 Chamberlayne Road, London, NW10 3NT

Granted Brent Certificate of Lawfulness - Proposed

Proposal

Certificate of lawfulness for proposed rear dormer and rear extension over outrigger with juliet balcony, 1 x side window, 1 x high level rear window and 3 x front rooflights to dwellinghouse.

As published by the council, reference 20/2533

Timeline

Dates from the published record

  1. 18 Aug 2020

    Received by Brent

  2. 1 Sep 2020

    Validated

    Checked as complete and ready for consideration.

  3. 26 Oct 2020

    Decision issued: Certificate of Lawfulness - Granted

  4. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • 24/1981 Granted

    30 Crediton Road, London, NW10 3DU

    Erection of single-storey rear extension and removal of existing first and second floors rear balconies, provision of new rear Juliet balconies bounded by glass balustrade and associated fenestration alterations, and roof alterations to existing side-infill extension to dwellinghouse.

    17 Jul 2024 81m away Householder
  • 24/1938 Granted

    20 Crediton Road, London, NW10 3DU

    Proposed side infill and rear extension to ground floor of dwellinghouse.

    12 Jul 2024 81m away Householder
  • 26/1617 Awaiting decision

    4 Crediton Road, London, NW10 3DU

    Proposed installation of bike and refuse storage and alterations to landscaping to front garden of dwellinghouse.

    26 Jun 2026 81m away Householder
  • 20/1309 Granted

    14A Crediton Road, London, NW10 3DU

    Demolition of existing outbuilding, erection of single storey outbuilding with two rooflights and outdoor swimming pool to the ground floor flat. (Revised description)

    1 May 2020 81m away Full applications
  • 20/2358 Granted

    34 Crediton Road, London, NW10 3DU

    Certificate of lawfulness for proposed loft conversion with L rear dormer, and addition of two roof lights to the front roof slope of dwelllinghouse.

    5 Aug 2020 81m away Lawful development
  • 26/0730 Granted

    46 Crediton Road, London, NW10 3DU

    Proposed alteration to front boundary wall, alterations to soft and hard lanscaping and new cycle and refuse storage to dwellinghouse

    23 Mar 2026 81m away Householder

In Brent

  • 26/1465 Granted

    8 Roe Green, London, NW9 0NY

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

    10 Jun 2026 Lawful development
  • 26/1370 Granted

    45 Holmstall Avenue, Edgware, HA8 5JQ

    Certificate of lawfulness for proposed use of dwellinghouse as a childrens' residential home

    1 Jun 2026 Lawful development
  • 26/1260 Granted

    18 Hartland Road, London, NW6 6BJ

    Certificate of lawfulness for proposed air source heat pump to rear of dwellinghouse

    18 May 2026 Lawful development
  • 26/1901 Awaiting decision

    176 Bridgewater Road, Wembley, HA0 1AR

    Certificate of lawfulness for proposed single-storey rear extension, rear dromer extension and 2x front rooflights to dwellinghouse.

    26 Jul 2026 Lawful development
  • 26/1353 Granted

    4 Hardinge Road, London, NW10 3PJ

    Certificate of lawfulness for proposed conversion of existing garage into a habitable room with replacement of garage door with window to side elevation and removal of ground floor side window of the dwellinghouse

    29 May 2026 Lawful development