20 Derby Avenue, Harrow Weald, Harrow, HA3 5JU

1. 23 Apr 2026

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 18 June 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

The published feed does not show a live status for this application; the register on Harrow's own portal holds the authoritative version.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 3 Stox Mead, Harrow Weald, Harrow, HA3 5JX

  PL/0943/25 Submitted 9 Apr 2025 69m away

  Single storey rear extension: 6.00 metres deep, 2.80 metres maximum height and 2.80 metres high to the eaves

  Granted Prior approval Extension
  Small domestic

• 9 Stox Mead, Harrow Weald, Harrow, HA3 5JX

  PL/0099/25 Submitted 16 Jan 2025 69m away

  Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves

  Granted Prior approval Extension
  Small domestic

• 18 Stox Mead, Harrow, HA3 5JX

  P/2641/18 Submitted 12 Jun 2018 69m away

  Single and two storey side to rear extension; single storey rear extension; rear dormer; rooflights in front and side roofslopes

  Decided Householder Extension Loft or dormer
  Small domestic

• 9 Stox Mead, Harrow Weald, Harrow, HA3 5JX

  PL/1677/25 Submitted 30 Jun 2025 69m away

  Certificate of Lawful Development Existing: Continued use of the property as a small House in Multiple Occupation (HMO) for up to six occupants within six bedrooms (Class C4).

  Granted Lawful development

• 54 Clewer Crescent, Harrow Weald, Harrow, HA3 5PZ

  PL/2347/25 Submitted 9 Sep 2025 83m away

  Decision due ~4 Nov

  Certificate of Lawful Development (Existing): Alterations and extension to roof to form end gable; rear dormer; rooflight in front roof slope

  Status unknown Lawful development Extension Loft or dormer

• 11 Mead Close, Harrow Weald, Harrow, HA3 5JN

  PL/1173/26 Submitted 29 Apr 2026 148m away

  Decision due ~24 Jun

  Certificate of Lawful Development (Proposed): Use of 11 Mead Close as the registered business address for a fostering agency

  Status unknown Lawful development

• PL/1797/26 Status unknown

  61 Uppingham Avenue, Stanmore, Harrow, HA7 2JB

  Single storey rear extension: 6.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves

  2 Jul 2026 Prior approval
• PL/1793/26 Status unknown

  36 Hinkler Road, Kenton, Harrow, HA3 9AU

  Single storey rear extension: 6.00 metres deep, 3.38 metres maximum height and 2.75 metres high to the eaves

  1 Jul 2026 Prior approval
• PL/1792/26 Status unknown

  3 Monro Gardens, Harrow Weald, Harrow, HA3 6HH

  Single storey rear extension: 6.50 metres deep, 3.20 metres maximum height and 3.00 metres high to the eaves

  1 Jul 2026 Prior approval
• PL/1794/26 Status unknown

  65 Dean Drive, Edgware, Stanmore, Harrow, HA7 1HB

  Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves

  1 Jul 2026 Prior approval
• PL/1749/26 Status unknown

  22 Hazelwood Close, Harrow, HA2 6HD

  Single storey rear extension: 4.50 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves

  29 Jun 2026 Prior approval