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Planning application

26/0947

25 Thirlmere Gardens, Wembley, HA9 8RH

Granted Brent Certificate of Lawfulness - Proposed

Proposal

Certificate of lawfulness for proposed single storey outbuilding in rear garden of the dwellinghouse.

As published by the council, reference 26/0947

Timeline

Dates from the published record

  1. 15 Apr 2026

    Received by Brent

  2. 21 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 12 Jun 2026

    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

  • 20/2955 Refused

    14 Thirlmere Gardens, Wembley, HA9 8RE

    Certificate of lawfulness for proposed hip to gable loft conversion, rear dormer with juliet balcony and installation of 3 x front facing rooflights; single storey rear extension and single storey outbuildinig in rear garden of dwellinghouse.

    21 Sep 2020 31m away Lawful development
  • 20/2346 Granted

    14 Thirlmere Gardens, Wembley, HA9 8RE

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.15m Eaves height - 3m

    3 Aug 2020 31m away Prior approval
  • 24/2090 Granted

    30 Arnside Gardens, Wembley, HA9 8TJ

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 3m

    29 Jul 2024 121m away Prior approval
  • 21/0004 Refused

    107 Grasmere Avenue, Wembley, HA9 8TG

    Retrospective application for existing single storey rear extension to dwellinghouse

    4 Jan 2021 153m away Householder
  • 26/1242 Granted

    59 College Road, Wembley, HA9 8RN

    Proposed conversion of single dwellinghouse into 4x bedroom, 4x person HMO with refuse and cycle storage spaces, associated landscaping to front and rear gardens and installation of boundary fence and gate to the front forecourt.

    18 May 2026 160m away Full applications
  • 26/0793 Granted

    34 Ambleside Gardens, Wembley, HA9 8TL

    Proposed garage conversion with associated alterations to its front-facing fenestration, erection of single storey rear extension and part first floor rear extension to dwellinghouse

    27 Mar 2026 177m 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