20/3878

1. 26 Nov 2020

   Received by Brent

2. 10 Dec 2020

   Validated

   Checked as complete and ready for consideration.

3. 26 Jan 2021

   Decision issued: Certificate of Lawfulness - Granted

4. 25 Jul 2026

   Added to PlanIndex

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.

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

• 20/2944 Granted

  10 Summerfield Avenue, London, NW6 6JU

  Retrospective planning permission for excavation of basement with front and rear lightwell, erection of front boundary wall with fixed planter behind, tiling to front garden and proposed installation of metal gate to pedestrian access and additional fixed planter box

  21 Sep 2020 0m away Householder
• 20/3263 Granted

  5 Summerfield Avenue, London, NW6 6JT

  Proposed demolition of existing rear lean-to, erection ground floor wrap-around extension; loft conversion with rear dormer window and the insertion of one front rooflight and three rear rooflights to dwellinghouse

  12 Oct 2020 46m away Householder
• 24/2338 Refused

  9 Summerfield Avenue, London, NW6 6JT

  Non-material amendment: Change position of 2nd floor front rooflight. Lower basement level to accommodate detailed floor constructions. New rear lightwell to basement. Ground floor extension rooflights rearranged. Design of rear elevation updated. 2nd floor dormer made smaller. of Full Planning Permission reference 23/1425 dated 25 October, 2023, for Proposed creation of basement level with front lightwell, single storey wraparound rear extension with internal courtyard and rear patio, loft conversion with rear dormer and 1 front rooflight, replacement of ground and first floor front windows, new front boundary treatment and associated landscaping

  21 Aug 2024 46m away Amendments
• 26/0933 Granted

  37 Summerfield Avenue, London, NW6 6JT

  Variation of condition 2, development built in accordance with approved drawings (alterations to rear extension) of Householder reference 24/2161 dated 18 November, 2024, for Proposed single-storey side infill and rear extension to form a wraparound extension, rear dormer window extension, replacement roof coverings, replacement windows to front and rear elevations, alterations to front boundary wall, cycle and refuse storage and soft and hard landscaping to front, rear courtyard at ground floor and green roof at first floor, installation of 4x rooflights to rear outrigger and installation of 1x rooflight to front of dwellinghouse

  14 Apr 2026 46m away Amendments
• 20/2628 Granted

  9 Dudley Road, London, NW6 6JX

  Proposed single storey rear and infill extensions, rear dormer window, installation of 2 x front facing rooflights, 2 x additional rooflights to rear, removal and replacement of window to side elevation of dwellinghouse

  26 Aug 2020 47m away Householder
• 26/1736 Awaiting decision

  3 Dudley Road, London, NW6 6JX

  Proposed rear dormer window with 1x front rooflight and installation of 1x rooflight to the side roof slope of the dwellinghouse.

  7 Jul 2026 47m away Householder

• 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