18 Dorset Avenue Southall UB2 4HF

1. 17 Jun 2026

   Received by Old Oak and Park Royal Development Corporation

2. 23 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 17 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. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 18 Dorset Avenue Southall UB2 4HF

  262421HH Submitted 17 Jun 2026 1m away

  87% historically approved · decision due ~17 Sep

  Part single and part two storey rear/side extension incorporating Juliet balcony; two storey side extension; front porch extension; alteration of roof from hip to gable end; rear roof extension; installation of three rooflights to front roofslope (following demolition of existing rear conservatory, side extension); and alteration to fenestration

  Awaiting decision Extension Loft or dormer +2
  Small domestic

• 7-9 Dorset Avenue Southall Middlesex UB2 4HF

  213788FUL Submitted 20 May 2021 16m away

  Conversion of garage into habitable use at no. 9 Dorset Avenue; first floor front extension at no. 7 Dorset Avenue; first floor rear infill extensions to both properties; rear roof extensions involving raised roof ridge height to main roofslope at no. 7 Dorset Avenue; installation in total of seven rooflights to front and side roofslopes; and alterations including changes to front and side elevations fenestration (Joint Application)

  Granted Full applications Extension Loft or dormer +2 20 docs

• 7-9 Dorset Avenue Southall Middlesex UB2 4HF

  213788FUL Submitted 20 May 2021 16m away

  Conversion of garage into habitable use at no. 9 Dorset Avenue; first floor front extension at no. 7 Dorset Avenue; first floor rear infill extensions to both properties; rear roof extensions involving raised roof ridge height to main roofslope at no. 7 Dorset Avenue; installation in total of seven rooflights to front and side roofslopes; and alterations including changes to front and side elevations fenestration (Joint Application)

  Granted Full applications Extension Loft or dormer +2 20 docs

• 6 Dorset Avenue Southall Middlesex UB2 4HF

  213938CPL Submitted 28 May 2021 38m away

  Alteration of roof from hip to gable end; rear roof extension incorporating juliet balcony; and installation of three roof lights to front roof slope (Lawful Development Certificate for Proposed Development).

  Granted Lawful development Extension Loft or dormer 4 docs

• 6 Dorset Avenue Southall Middlesex UB2 4HF

  213938CPL Submitted 28 May 2021 38m away

  Alteration of roof from hip to gable end; rear roof extension incorporating juliet balcony; and installation of three roof lights to front roof slope (Lawful Development Certificate for Proposed Development).

  Granted Lawful development Extension Loft or dormer 4 docs

• 6 Dorset Avenue Southall Middlesex UB2 4HF

  214532PALHE Submitted 2 Jul 2021 38m away

  Single storey (Max 6m deep and Max 3m high) rear extension (42 days Prior Notification Process) following demolition of existing rear/side addition.

  Granted Prior approval Extension Demolition 5 docs
  Small domestic

• 261571HH Granted

  55 Ramillies Road Chiswick W4 1JW

  Single storey rear extension; alteration of roof from hip to gable end; rear roof extension; installation of two rooflights to front roofslope; alterations to side fenestrations; replacement glazing throughout, replacement external render and hung tiles

  14 Apr 2026 Householder
• 262060HH Granted

  8 Carlyle Gardens Southall UB1 2BN

  Construction of single storey rear extension; first floor rear extension; alterations to the front, side and rear elevations involving modifications and insertion of windows; together with associated internal alterations (Retrospective)

  19 May 2026 Householder
• 262480HH Refused

  270 Norwood Road Southall UB2 4JH

  Alteration of roof from hip to gable end; rear roof extension; installation of three rooflights to front roofslope; alteration to first floor rear extension roof; external alterations

  19 Jun 2026 Householder
• 262450HH Granted

  83 Bilton Road Perivale UB6 7BB

  Formation of vehicle crossover

  18 Jun 2026 Householder
• 262646HH Granted

  130 Bridge Avenue Hanwell W7 3AR

  Single storey rear extension

  2 Jul 2026 Householder