350 Preston Road, Harrow, HA3 0QJ

This site has had 2 applications since 2026.

• 26/0070 Withdrawn

  350 Preston Road, Harrow, HA3 0QJ

  Proposed demolition of existing garage, and front porch and erection of front porch, part single part two-storey side to rear extension, roof alterations including 4x side dormers, 4x roof lights and 1x dormer to rear with juliet balcony, patio to rear and alterations to front rear and side fenestration and render finishes to dwellinghouse. (Revised Description)

  Decided 27 Feb 2026 Householder

1. 22 Jun 2026

   Received by Brent

2. 26 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 21 August 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Brent took a median of 56 days over the applications it decided in the last year.

This application is with Brent for determination, against a statutory target of eight weeks. Over the last year Brent's median decision took 56 days. More in our guide to how long planning decisions take.

The published feed does not state which type of application this is; the register entry on Brent's portal will say. Our guide explains the common types.

• 342 Preston Road, Harrow, HA3 0QJ

  26/2054 Submitted 13 Aug 2026 0m away

  79% historically approved · decision due ~12 Oct

  Proposed change of use from single-family dwellinghouse (Use Class C3) to 6-bedroom/9-person Hous...

  Awaiting decision
  Domestic

• 342 Preston Road, Harrow, HA3 0QJ

  26/0949 Submitted 15 Apr 2026 0m away

  79% historically approved · decision due ~14 Jul

  Proposed change of use from single-family dwellinghouse to 8-bedroom/10-person House in Multiple ...

  Decided
  Domestic

• 350 Preston Road, Harrow, HA3 0QJ

  26/0070 Submitted 13 Jan 2026 2m away

  Proposed demolition of existing garage, and front porch and erection of front porch, part single part two-storey side to rear extension, roof alterations including 4x side dormers, 4x roof lights and 1x dormer to rear with juliet balcony, patio to rear and alterations to front rear and side fenestration and render finishes to dwellinghouse. (Revised Description)

  Withdrawn Householder Extension Loft or dormer +3 2 docs
  Small domestic

• 342 Preston Road, Harrow, HA3 0QJ

  25/2560 Submitted 8 Sep 2025 2m away

  Proposed two-storey side to rear extension to dwellinghouse

  Granted Householder Extension 6 docs
  Domestic

• 203 Preston Hill, Harrow, HA3 9UL

  21/0917 Submitted 15 Mar 2021 72m away

  Hip to gable roof extension including 3 front rooflights and rear dormer roof extension with Juliet balcony to the dwellinghouse

  Granted Householder Extension Loft or dormer 11 docs
  Domestic

• 214 Preston Hill, Harrow, HA3 9UJ

  20/3447 Submitted 26 Oct 2020 92m away

  Certificate of lawfulness for proposed change of use from dwellinghouse (Use class C3) to 6 bedroom/6 person house in multiple occupancy (Use Class C4)

  Refused Lawful development 4 docs
  Domestic