20 Mallet Drive, Northolt, Harrow, UB5 4BE

1. 22 Sep 2025

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

Harrow 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.

• 9 Mallet Drive, Northolt, Harrow, UB5 4BE

  PL/0969/25 Submitted 7 Apr 2025 50 yards away

  Certificate of Lawful Proposed Development: Alterations to roof to form rear dormer; installation of two roof lights in front roof slope.

  Granted Lawful development Loft or dormer

• 21 Mallet Drive, Northolt, UB5 4BE

  P/3887/08 Submitted 28 Nov 2008 50 yards away

  Certificate of lawful proposed development: two-storey rear extension

  Refused Lawful development Extension 10 docs

• 20 Martin Drive, Northolt, UB5 4BG

  P/72/06/DFU Submitted 10 Jan 2006 50 yards away

  Alterations single storey rear extension and conversion to two self-contained flats

  Granted Full applications New dwelling Extension 28 docs
  Small domestic

• 10 Martin Drive, Northolt, UB5 4BG

  P/1210/18 Submitted 22 Mar 2018 50 yards away

  Certificate of lawful development (proposed): single storey rear extension

  Granted Lawful development Extension 9 docs
  Small domestic

• 10 Martin Drive, Northolt, Harrow, UB5 4BG

  P/0512/18 Submitted 6 Feb 2018 50 yards away

  CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: Single storey rear extension

  Withdrawn Lawful development Extension 5 docs
  Small domestic

• 10 Martin Drive, Northolt, UB5 4BG

  P/5083/17/PRIOR Submitted 8 Nov 2017 50 yards away

  Single storey rear extension: extending 6 metres beyond the original rear wall 3 metres maximum height 3 metres high to the eaves

  Granted Householder Extension 16 docs
  Small domestic

• PL/1786/26 Status unknown

  23 Stuart Road, Wealdstone, Harrow, HA3 7RB

  Conversion of detached garage at rear to provide a single storey dwelling house ( 1 x 1 bed); Replace garage doors with door and window in front elevation; Replace door with window in side elevation; External alterations; Cycle and Refuse storage

  Received 30 Jun, published by the council 12 Aug 2026 Full applications
• PL/1784/26 Status unknown

  14 Treve Avenue, West Harrow, Harrow, HA1 4AJ

  Conversion of existing 6-bed 6-person HMO into 7-bed 8-person HMO with associated bin and cycle storage

  Received 30 Jun, published by the council 12 Aug 2026 Full applications
• PL/1777/26 Status unknown

  11 London Road, Harrow, HA1 3JJ

  Refurbishment and replacement of windows and door to the basement and ground floor front, side and rear elevations

  Received 29 Jun, published by the council 12 Aug 2026 Full applications
• PL/1743/26 Status unknown

  49 Kings Way, Harrow, HA1 1XT

  Single and two storey side extension; external alterations: Conversion of dwellinghouse (C3) into a 6 person HMO (C4); refuse / cycle storage (demolition of attached garage)

  Received 25 Jun, published by the council 12 Aug 2026 Full applications
• PL/1710/26 Status unknown

  4 Kenton Road, Kenton, Harrow, HA1 2BL

  Conversion of dwelling (C3) into house of multiple occupancy for up to 6 persons (Sui Generis)

  Received 22 Jun, published by the council 12 Aug 2026 Full applications