26 Lyndhurst Avenue, Pinner, Harrow, HA5 3XA

1. 16 Jun 2026

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 11 August 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, which usually means the council register holds more recent detail than the copy PlanIndex receives.

The council portal linked on this page carries the authoritative version, including the documents, any consultation deadline and the decision once made. PlanIndex refreshes its copy of the register on a daily cycle.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 52 Lyndhurst Avenue, Pinner, Harrow, HA5 3XA

  PL/1143/26 Submitted 27 Apr 2026 0m away

  Decision due ~22 Jun

  Single storey front and single storey rear extensions; external alterations (demolition of porch and rear extension)

  Status unknown Householder Extension Demolition
  Small domestic

• 62 Lyndhurst Avenue, Pinner, Harrow, HA5 3XA

  PL/2465/25 Submitted 23 Sep 2025 0m away

  Decision due ~18 Nov

  Front porch; single storey side to rear extension; external alterations (demolition of detached garage)

  Status unknown Householder Extension Demolition
  Small domestic

• 101 Greenway, Pinner, Harrow, HA5 3SN

  PL/1920/25 Submitted 20 Jul 2025 93m away

  First floor rear extension

  Granted Householder Extension
  Domestic

• 32 Greenway, Pinner, Harrow, HA5 3SP

  PL/2424/25 Submitted 17 Sep 2025 99m away

  Single storey side and rear extensions; first floor side to rear extension

  Refused Householder Extension
  Small domestic

• 32 Greenway, Pinner, Harrow, HA5 3SP

  PL/0966/26 Submitted 10 Apr 2026 99m away

  Decision due ~5 Jun

  Single and two storey side extension; Single and two storey rear extension; Front dormer; External alterations (Demolition of rear conservatory)

  Status unknown Householder Extension Loft or dormer +1
  Small domestic

• 11 Athol Gardens, Pinner, Harrow, HA5 3XH

  P/4243/18/PRIOR Submitted 19 Sep 2018 116m away

  Single Storey Rear Extension: extending 8 metres beyond the original rear wall, 3.2 metres maximum height, 3 metres high to the eaves

  Refused Prior approval Extension 10 docs
  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

  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