15 Walton Way Acton W3 0AW

1. 17 Feb 2026

   Received by Old Oak and Park Royal Development Corporation

2. 27 Mar 2026

   Decision issued: Prior Approval Not Required

3. 10 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

• 15 Walton Way Acton W3 0AW

  260704CPL Submitted 18 Feb 2026 0m away

  Alteration of roof from hip to gable end; rear dormer roof extension (involving conversion of roofspace to habitable use), alterations to side elevation fenestration; single storey side front infill extension and installation of four rooflights to front roofslope (Application for a Lawful Development Certificate for a Proposed Development)

  Granted Lawful development Extension Loft or dormer +1 11 docs
  Small domestic

• 15 Walton Way Acton W3 0AW

  260675PALHE Submitted 17 Feb 2026 0m away

  Single storey (max 6.0m deep and max 2.80 high) rear and side extensions (following demolition of existing rear extension) (42 Days Prior Approval Notification Process

  Granted Prior approval Extension Demolition 4 docs
  Small domestic

• 15 Walton Way Acton W3 0AW

  260704CPL Submitted 18 Feb 2026 0m away

  Alteration of roof from hip to gable end; rear dormer roof extension (involving conversion of roofspace to habitable use), alterations to side elevation fenestration; single storey side front infill extension and installation of four rooflights to front roofslope (Application for a Lawful Development Certificate for a Proposed Development)

  Granted Lawful development Extension Loft or dormer +1 11 docs
  Small domestic

• 15 Walton Way Acton W3 0AW

  262880HH Submitted 23 Jul 2026 11m away

  88% historically approved · decision due ~17 Sep

  Single storey (max 6.0m deep and max 2.80 high) rear and side extensions (following demolition of existing rear extension)(Approved); Single storey ground floor wrap-around extension, a first-floor side extension, a first-floor partial rear extension, Alteration of roof from hip to gable end; rear dormer roof extension (involving conversion of roofspace to habitable use (Approved)

  Awaiting decision Householder Extension Loft or dormer +1 5 docs
  Small domestic

• 15 Walton Way Acton W3 0AW

  262880HH Submitted 23 Jul 2026 12m away

  87% historically approved · decision due ~17 Sep

  Single storey (max 6.0m deep and max 2.80 high) rear and side extensions (following demolition of existing rear extension)(Approved); Single storey ground floor wrap-around extension, a first-floor side extension, a first-floor partial rear extension, Alteration of roof from hip to gable end; rear dormer roof extension (involving conversion of roofspace to habitable use (Approved)

  Awaiting decision Extension Loft or dormer +1 5 docs
  Small domestic

• 21 Walton Way Acton W3 0AW

  230049FUL Submitted 6 Jan 2023 32m away

  Construction of two-storey residential building with roofspace accommodation comprising of three self-contained residential units; and provision of associated cycle and refuse storage facilities (following demolition of the existing building)

  Granted Full applications Demolition 18 docs

• 262791PALHE Granted

  2 Gonville Crescent Northolt UB5 4SJ

  Single storey (max. 6.0m deep and 3.40m high) side/rear extension (42 Days Prior Approval Notification Process).

  16 Jul 2026 Prior approval
• 263232PALHE Awaiting decision

  28 Devonshire Road Ealing W5 4TP

  Single storey rear extension (following the demolition of the existing extension) (max 4.4m deep and max 4m high) (42 Days Prior Approval Notification Process)

  26 Aug 2026 Prior approval
• 262177PALHE Granted

  35 Queens Avenue Greenford UB6 9BU

  Single storey rear extension (max 6m deep and max 3.85m high) (42 Days Prior Approval Notification Process)

  29 May 2026 Prior approval
• 262711PALHE Refused

  30 Iveagh Avenue Park Royal NW10 7DH

  Single storey (Max 6m deep and Max 3.50m high) rear extension (42 days Prior Notification Process)

  9 Jul 2026 Prior approval
• 262718PALHE Refused

  20 Somerset Road Southall UB1 2TP

  Single storey (Max 6m deep and Max 3.2m high) rear extension (42 days Prior Notification Process)

  8 Jul 2026 Prior approval