121 Preston Hill, Harrow, HA3 9SN

1. 3 Dec 2025

   Received by Brent

2. 9 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 3 Feb 2026

   Decision issued: Permission Refused

4. 10 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 full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 112 Preston Hill, Harrow, HA3 9SJ

  24/1945 Submitted 12 Jul 2024 81m away

  Proposed single storey side and rear extension, rear dormer window with 6x front rooflights, internal alterations and installation of windows to side elevations of the bungalow.

  Granted Householder Extension Loft or dormer +1 5 docs
  Small domestic

• 11 Vane Close, Harrow, HA3 9XD

  20/4109 Submitted 11 Dec 2020 86m away

  Proposed replacement of rooftiles to front and rear elevations with painted render, replacement of front window and construction of new cavity block wall with painted render to dwellinghouse

  Granted Householder Windows or glazing 6 docs
  Domestic

• 11 Vane Close, Harrow, HA3 9XD

  21/0371 Submitted 3 Feb 2021 86m away

  Certificate of lawfulness for proposed installation of vehicular access to dwellinghouse

  Granted Lawful development 6 docs
  Domestic

• 34 Dorchester Way, Harrow, HA3 9RF

  25/3314 Submitted 27 Nov 2025 103m away

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.75m Eaves height - 3m

  Granted Prior approval Extension 3 docs
  Small domestic

• 138 Preston Hill, Harrow, HA3 9XF

  20/2288 Submitted 30 Jul 2020 125m away

  Erection of single storey side and rear extension to dwellinghouse.

  Granted Householder Extension 10 docs
  Small domestic

• 138 Preston Hill, Harrow, HA3 9XF

  21/1422 Submitted 19 Apr 2021 125m away

  Proposed part double and single storey rear extension to dwellinghouse.

  Granted Householder Extension 12 docs
  Small domestic

• 26/0679 Granted

  1 - 19 Sherwood, 172-174 Willesden Lane, Kilburn, London, NW6 7PJ

  Proposed replacement to front and side boundary walls and soft landscaping to block of flats.

  17 Mar 2026 Full applications
• 26/0314 Granted

  43 Wood Lane, London, NW9 8DU

  Proposed change of use from a single family dwelling (use class C3) to a care home (use class C2) for two young persons

  9 Feb 2026 Full applications
• 26/1061 Granted

  37 Lynton Road, London, NW6 6BE

  Proposed single storey side extension, enlargement of existing rear dormer extension, basement extension, replacement of side and rear windows, alterations to the fenestration, soft and hard landscaping to the front and rear gardens and installation of front lightwell to the dwellinghouse.

  27 Apr 2026 Full applications
• 26/0825 Granted

  30A-D & 32A-B Winchester Avenue, Kilburn, London, NW6 7TU

  Proposed conversion of flats within properties no. 30 and 32 into 4 x self-contained flats with erection of single storey side-to rear extension, rear dormer to main roof, dormer to rear outrigger, 4 x front rooflights, alterations to fenestration, replacement of rear balcony with Juliette balcony and retention of associated French doors, landscaping to front and rear garden and addition of cycle and refuse storage (revised description)

  30 Mar 2026 Full applications
• 25/2559 Granted

  22 & 22A Birchen Grove, London, NW9 8SA

  Proposed de-conversion of 2x self-contained flats into 1x single-family dwellinghouse, erection of single-storey rear extension with raised terrace, hip to gable-end roof extension, rear dormer with Juliet balcony, 2x front rooflights, 1x second-floor side window, alteration to single-storey side extension roof and front porch (amended description)

  8 Sep 2025 Full applications