135 Westbury Avenue Southall UB1 2XA

1. 11 Nov 2025

   Received by Old Oak and Park Royal Development Corporation

2. 17 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 11 Feb 2026

   Decision issued: Permitted Development

4. 10 Aug 2026

   Added to PlanIndex

Old Oak and Park Royal Development Corporation granted permission on 11 February 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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.

• 135 Westbury Avenue Southall UB1 2XA

  254279CPL Submitted 11 Nov 2025 50 yards away

  Change of use of a single dwellinghouse (Use Class C3) into House in Multiple Occupation (HMO) (Use Class C4) for maximum 6 occupants (Lawful Development Certificate for a Proposed Development)

  Granted Lawful development 10 docs
  Domestic

• 145 Westbury Avenue Southall UB1 2XB

  261451PALHE Submitted 3 Apr 2026 50 yards away

  Single storey (max 6.00m deep and max 4.00m high) rear extension (42 Days Prior Approval Notification Process)

  Granted Prior approval Extension 5 docs
  Small domestic

• 145 Westbury Avenue Southall UB1 2XB

  261451PALHE Submitted 3 Apr 2026 50 yards away

  Single storey (max 6.00m deep and max 4.00m high) rear extension (42 Days Prior Approval Notification Process)

  Granted Prior approval Extension 5 docs
  Small domestic

• 88 Westbury Avenue Southall Middlesex UB1 2XA

  225231HH Submitted 13 Dec 2022 100 yards away

  Modification of single storey detached outbuilding with associated alterations to reduce the building footprint. Removal of single storey rear extension (Works are part retrospective)

  Decided Householder Extension 19 docs
  Small domestic

• 88 Westbury Avenue Southall Middlesex UB1 2XA

  225231HH Submitted 13 Dec 2022 100 yards away

  Modification of single storey detached outbuilding with associated alterations to reduce the building footprint. Removal of single storey rear extension (Works are part retrospective)

  Decided Householder Extension 19 docs
  Small domestic

• 136 Westbury Avenue Southall UB1 2XB

  260169PALHE Submitted 16 Jan 2026 100 yards away

  Single storey (max 6.00m deep and max 3.00 high) rear extension (42 Days Prior Approval Notification Process)

  Granted Prior approval Extension 4 docs
  Small domestic

• 263142CPL Granted

  42 Gloucester Road Acton W3 8PD

  Roof extension to rear (main) roof slope; part rear roof extension to rear outrigger roof slope and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)

  Received 18 Aug, published by the council 12 Oct 2026 Lawful development
• 263690CPL Awaiting decision

  133 Trinity Road Southall UB1 1ES

  Rear roof extension, and installation of three roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)

  Received 6 Oct, published by the council 12 Oct 2026 Lawful development
• 262683CPE Granted

  1 Speldhurst Road Chiswick W4 1BX

  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)

  Received 7 Jul, published by the council 3 Aug 2026 Lawful development
• 254066CPE Refused

  37 Robin Hood Way Greenford UB6 7QN

  Use of ground floor flat and first/second floor flat (Use Class C3) as 2 x House in Multiple Occupation (Use Class C4) (Certificate of Lawfulness for an Existing Use)

  Received 24 Oct, published by the council 3 Aug 2026 Lawful development
• 262883CPL Granted

  90 Church Road Hanwell W7 3BE

  Rear roof extension (following removal of chimney); installation of two rooflight to front roofslope (Lawful Development Certificate for a Proposed Development)

  Received 24 Jul, published by the council 10 Sep 2026 Lawful development