1 Speldhurst Road Chiswick W4 1BX

1. 7 Jul 2026

   Received by Old Oak and Park Royal Development Corporation

2. 3 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 1 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Old Oak and Park Royal Development Corporation took a median of 55 days over the applications it decided in the last year.

This application is with Old Oak and Park Royal Development Corporation for determination, against a statutory target of eight weeks. Over the last year Old Oak and Park Royal Development Corporation decided lawful development applications in a median of 54 days. More in our guide to how long planning decisions take.

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.

• 1 Speldhurst Road Chiswick W4 1BX

  262683CPE Submitted 7 Jul 2026 2m away

  86% historically approved · decision due ~1 Sep

  Continuous use of conversion of the roof space to provide additional habitable accommodation, installation of rooflights to the front roof slope and a rear dormer and construction of a single-storey rear extension. External materials to match the existing dwelling. (Lawful Development Certificate for an Existing Development)

  Awaiting decision Extension Loft or dormer 10 docs
  Small domestic

• 14 Speldhurst Road Chiswick W4 1BU

  244305PALHE Submitted 14 Nov 2024 39m away

  Single storey rear extension (max 4.8m deep and max 3.2m high) (42 Days Prior Approval Notification Process)

  Withdrawn Prior approval Extension 7 docs
  Small domestic

• 4 Speldhurst Road Chiswick London W4 1BU

  194709PALHE Submitted 4 Nov 2019 57m away

  Single storey (Max 4.8m deep and Max 3m high) rear extension (42 days Prior Notification Process) following demolition of existing rear addition

  Granted Prior approval Extension Demolition 8 docs
  Small domestic

• 12 Bayham Road Chiswick London W4 1BJ London

  P/2008/4411 Submitted 3 Dec 2008 78m away

  Single storey rear extension

  Refused Full applications Extension
  Small domestic

• 12 Bayham Road Chiswick London W4 1BJ London

  P/2008/4411 Submitted 3 Dec 2008 78m away

  Single storey rear extension

  Refused Full applications Extension
  Small domestic

• 10 Bonheur Road Chiswick W4 1DH

  253436CPL Submitted 9 Sep 2025 106m away

  Single storey rear extension; rear roof extension incorporating Juliet balcony; and installation of three rooflights to front roofslope (Lawful Development Certificate for a Proposed Development)

  Granted Lawful development Extension Loft or dormer 4 docs
  Small domestic

• 262788CPL Granted

  7 Kent Avenue West Ealing W13 8BE

  Alteration of roof from hip to gable end (following removal of chimney stack), rear roof extension incorporating a Juliet balcony; installation of three front rooflights (Lawful Development Certificate for a Proposed Development)

  15 Jul 2026 Lawful development
• 262782CPL Granted

  28 Noel Road Acton W3 0JX

  Alteration of roof from hip to gable end; rear roof extension; installation of two rooflights to front roofslope; part single, part two storey rear extension; single storey side extension; installation of one side window to gable (Lawful Development Certificate for a Proposed Development)

  15 Jul 2026 Lawful development
• 262244CPL Refused

  79 Somerset Road Southall UB1 2UE

  Single storey detached garden outbuilding for use as gym (Lawful Development Certificate for a Proposed Development)

  3 Jun 2026 Lawful development
• 262727CPL Granted

  32 Beresford Avenue Hanwell W7 3AL

  Alteration of roof from hip to gable end; rear roof extension and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)

  10 Jul 2026 Lawful development
• 262518CPL Granted

  64 Culmington Road West Ealing W13 9NH

  Alteration of roof from hip to gable end; rear roof extension incorporating Juliet balcony; installation of window to side gable; installation of four rooflights to front roofslope; replacement of side gable window (Lawful Development Certificate for a Proposed Development)

  24 Jun 2026 Lawful development