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Planning application

24/1879

334 Preston Road, Harrow, HA3 0QH

Granted Brent Certificate of Lawfulness - Proposed

Proposal

Certificate of lawfulness for proposed conversion and enlargement of garage into habitable room with rear garage extension, alterations to fenestration and single storey outbuilding in rear garden of the dwellinghouse.

As published by the council, reference 24/1879

Timeline

Dates from the published record

  1. 8 Jul 2024

    Received by Brent

  2. 11 Jul 2024

    Validated

    Checked as complete and ready for consideration.

  3. 3 Sep 2024

    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

  • 25/3596 Awaiting decision

    312 Preston Road, Harrow, HA3 0QH

    Demolition of existing garage and erection of a three and part four storey mixed-use building with commercial space on the basement and ground floors and 8x self-contained flats on the upper floors, the installation of new vehicular access, the provision of cycle and refuse storage, a communal garden, and associated landscaping.

    29 Dec 2025 0m away Full applications
  • 20/2767 Granted

    336 Preston Road, Harrow, HA3 0QH

    Demolition of side garage and rear extension and erection of single-storey side and single-storey rear extensions with extension to existing dropped-kerb and associated landscaping to dwellinghouse

    8 Sep 2020 0m away Householder
  • 20/1721 Granted

    43 Oxenpark Avenue, Wembley, HA9 9SY

    Proposed retention of part single-storey part two-storey side and rear extension, retention and reduction to height and depth of single storey side to rear extension, retention and reduction of height and footprint of single storey detached outbuilding, removal of rear dormer and retention of side dormer, retention of and alterations to front porch, installation of bay window to side elevation, replacement boundary treatment, alterations to fenestration and timber embellishments, and provision of soft landscaping to front forecourt of dwellinghouse

    15 Jun 2020 52m away Householder
  • 24/2243 Granted

    297 Preston Road, Harrow, HA3 0QQ

    Proposed demolition of rear shed and partial demolition and changes to fenestration of rear outbuilding and formation of patio to the rear of dwellinghouse

    12 Aug 2024 106m away Full applications
  • 26/1728 Awaiting decision

    19 Ravenscroft Avenue, Wembley, HA9 9TJ

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 8.00m Maximum height - 3.20m Eaves height - 3.00m

    7 Jul 2026 162m away Prior approval
  • 26/1726 Awaiting decision

    19 Ravenscroft Avenue, Wembley, HA9 9TJ

    Certificate of lawfulness for proposed hip-to-gable roof extension, rear dormer extension with juliet balcony and installation of 1x side window and 2x front rooflights to dwellinghouse

    7 Jul 2026 162m away Lawful development

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