20 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QE

1. 12 Feb 2026

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 April 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.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 20 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QE

  PL/1097/26 Submitted 22 Apr 2026 0m away

  Decision due ~17 Jun

  Single storey side extension incorporating garage; external alterations (demolition of attached garage)

  Status unknown Householder Extension Demolition
  Small domestic

• 20 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QE

  PL/2807/25 Submitted 28 Oct 2025 0m away

  Decision due ~23 Dec

  Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves

  Status unknown Prior approval Extension
  Small domestic

• 20 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QE

  PL/0045/26 Submitted 8 Jan 2026 0m away

  Decision due ~5 Mar

  Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves

  Status unknown Prior approval Extension
  Small domestic

• 69 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QN

  PL/2299/25 Submitted 3 Sep 2025 68m away

  Single storey side extension; single storey rear extension; alterations and extension to roof to form end gable; rear dormer with two Juliet balconies; three rooflights in front roof slope; rear patio with steps and ramp (Demolition of garage)

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 59 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QN

  P/1447/23 Submitted 16 May 2023 68m away

  CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Outbuilding at rear for use as gym / storage (demolition of outbuilding)

  Granted Lawful development Demolition 12 docs

• 1 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QW

  P/3346/18/PRIOR Submitted 25 Jul 2018 113m away

  Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3.925 metres maximum height, 3 metres high to the eaves

  Granted Prior approval Extension 4 docs
  Small domestic

• 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