23 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

This site has had 2 applications since 2025: 0 approved, 1 refused.

• PL/3160/25 Status unknown

  23 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

  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

  Submitted 5 Dec 2025 Lawful development

1. 6 Oct 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 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.

• 67 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

  PL/1318/26 Submitted 13 May 2026 0m away

  Decision due ~8 Jul

  Single storey front extension incorporating front porch; single and two storey side extension; rooflights in roof slopes; external alterations (Demolition of detached outhouse and rear conservatory)

  Status unknown Householder Extension Loft or dormer +1
  Small domestic

• 51 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

  PL/1165/26 Submitted 28 Apr 2026 0m away

  Decision due ~23 Jun

  Single storey rear extension; external alterations

  Status unknown Householder Extension
  Small domestic

• 51 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

  PL/1167/26 Submitted 28 Apr 2026 0m away

  Decision due ~23 Jun

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

  Status unknown Lawful development Loft or dormer Windows or glazing

• 23 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

  PL/3160/25 Submitted 5 Dec 2025 0m away

  Decision due ~30 Jan

  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

  Status unknown Lawful development Extension Loft or dormer +1

• 66 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL

  P/1179/21 Submitted 22 Mar 2021 36m away

  CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form end gable; rear dormer with Juliette balcony; rooflights in front and rear roofslopes; window in end gable

  Granted Lawful development Extension Loft or dormer +1 11 docs

• 40 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL

  PL/2491/24 Submitted 9 Sep 2024 36m away

  Single and two storey rear extension

  Granted Householder Extension
  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

  29 Jun 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

  29 Jun 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

  24 Jun 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)

  22 Jun 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

  22 Jun 2026 Lawful development