101 Cornwall Avenue Southall UB1 2TQ

1. 27 May 2026

   Received by Old Oak and Park Royal Development Corporation

2. 2 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 27 Jul 2026

   Added to PlanIndex

4. 3 Aug 2026

   Status changed to Awaiting decision

   Previously Pending Consideration.

5. 4 Aug 2026

   Decision issued: Refused

Old Oak and Park Royal Development Corporation refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 122 Cornwall Avenue Southall UB1 2TQ

  261879HH Submitted 30 Apr 2026 50 yards away

  Single storey rear outbuilding (Following the demolition of the rear conservatory)

  Granted Householder Extension Demolition 9 docs
  Small domestic

• 81 Cornwall Avenue Southall UB1 2TQ

  262503FUL Submitted 23 Jun 2026 50 yards away

  76% historically approved · decision due ~18 Aug

  Conversion of single dwelling into 2 x self contained flats (2 X 1 Bedroom) with amenity space, bin/cycle stores & off-street parking, and installation of a roof lantern to the single storey rear extension (Retrospective application)

  Awaiting decision Full applications New dwelling Extension +1 10 docs
  Small domestic

• 122 Cornwall Avenue Southall UB1 2TQ

  261879HH Submitted 30 Apr 2026 50 yards away

  Single storey rear outbuilding (Following the demolition of the rear conservatory)

  Granted Householder Extension Demolition 9 docs
  Small domestic

• 81 Cornwall Avenue Southall UB1 2TQ

  262503FUL Submitted 23 Jun 2026 50 yards away

  75% historically approved · decision due ~18 Aug

  Conversion of single dwelling into 2 x self contained flats (2 X 1 Bedroom) with amenity space, bin/cycle stores & off-street parking, and installation of a roof lantern to the single storey rear extension (Retrospective application)

  Awaiting decision Full applications New dwelling Extension +1 10 docs
  Small domestic

• 101 Cornwall Avenue Southall UB1 2TQ

  263076FUL Submitted 11 Aug 2026 50 yards away

  86% historically approved · decision due ~15 Dec

  Conversion of dwellinghouse to HMO(C4) for 5 bed for 6 People with provision of cycle storage, bin storage; front porch extension (following demolition of existing front porch extension; single storey front/side extension; single storey rear extension (following demolition of existing conservatory); single storey detached outbuilding internal and external alterations; alterations to side and rear fenestrations

  Awaiting decision Extension Demolition
  Small domestic

• 101 Cornwall Avenue Southall UB1 2TQ

  262135CPE Submitted 27 May 2026 50 yards away

  Continue to use the dwellinghouse as HMO (Sui Generis) (Lawful Development Certificate for an Existing Use)

  Refused 15 docs
  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