Millook, 4 Porlock Avenue, Harrow, HA2 0AS

1. 8 May 2018

   Received by Harrow

2. 15 May 2018

   Validated

   Checked as complete and ready for consideration.

3. 3 Jul 2018

   Decision issued: Grant

4. 2 Sep 2026

   Added to PlanIndex

Harrow granted permission on 3 July 2018, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• Millook, 4 Porlock Avenue, West Harrow, Harrow, HA2 0AS

  P/0684/18/PRIOR Submitted 15 Feb 2018 50 yards away

  Single Storey Rear Extension: extending 4.26 metres beyond the original rear wall, 3.7 metres maximum height, 3 metres high to the eaves

  Granted Prior approval Extension 5 docs
  Small domestic

• FIELD END COTTAGE Porlock Avenue, West Harrow, Harrow, HA2 0AS

  PL/2169/25 Submitted 18 Aug 2025 50 yards away

  Single storey rear extension, External alterations

  Granted Householder Extension
  Small domestic

• 99 Whitmore Road, Harrow, HA1 4AF

  P/2897/07 Submitted 3 Sep 2007 50 yards away

  Single storey front extension and single storey side to rear extension (revised)

  Granted Full applications Extension 13 docs
  Small domestic

• 99 Whitmore Road, Harrow, HA1 4AF

  P/1852/07 Submitted 14 Jun 2007 50 yards away

  Single storey front extension and single storey side to rear extension

  Refused Full applications Extension 17 docs
  Small domestic

• 93A Whitmore Road, West Harrow, Harrow, HA1 4AF

  PL/2617/25 Submitted 8 Oct 2025 50 yards away

  Installation and replacement of window to front elevation at ground floor level; external alterations

  Granted Householder Windows or glazing
  Domestic

• 93a Whitmore Road, West Harrow, Harrow, HA1 4AF

  PL/1524/25 Submitted 11 Jun 2025 50 yards away

  Certificate of Lawful Proposed Development: Rear flat roof Dormer, Ground Floor Front Porch and 1x rooflight to the front roofslope

  Granted Lawful development Extension Loft or dormer
  Small domestic

• PL/1761/26 Status unknown

  1 Middle Road, Harrow On The Hill, Harrow, HA2 0HW

  Certificate of lawful development (proposed): Replacement of ground floor front bay window

  Received 29 Jun, published by the council 12 Aug 2026 Lawful development
• PL/1772/26 Status unknown

  114 Somervell Road, South Harrow, Harrow, HA2 8TT

  Certificate of Lawful Proposed Development: Demolition and replacement of first floor level and roof

  Received 29 Jun, published by the council 12 Aug 2026 Lawful development
• PL/1735/26 Status unknown

  222 Malvern Avenue, South Harrow, Harrow, HA2 9HE

  Certificate of lawful development (proposed): Rear dormer; installation of rooflight in front roofslope

  Received 24 Jun, published by the council 12 Aug 2026 Lawful development
• PL/1716/26 Status unknown

  59 Leamington Crescent, South Harrow, Harrow, HA2 9HH

  Certificate of Lawful Development (Proposed): Garden room with garden tools storage at rear (demolition of detached garage)

  Received 22 Jun, published by the council 12 Aug 2026 Lawful development
• PL/1696/26 Status unknown

  31 Chandos Road, Harrow, HA1 4QX

  Certificate of Lawful Development (Proposed): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roof slope; window in end gable

  Received 22 Jun, published by the council 12 Aug 2026 Lawful development