Planning application
20 King Street Southall UB2 4DA
Works: Extension
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
First floor rear extension to the existing three bedroom flat
As published by the council, reference 263107FUL
Application record
- Reference
- 263107FUL
- Type
- Full Application
- Status
- Pending Consideration
- Received
- 14 Aug 2026
- Validated
- 14 Aug 2026
- Ward
- Southall Green
- Postcode
- UB2 4DA
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 2 applications since 2025: 0 approved, 1 refused.
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253447FUL Refused
20 King Street Southall UB2 4DA
First floor rear extension to accommodate one self-contained studio flat; and associated internal and external alterations
Timeline
Dates from the published record
-
14 Aug 2026
Received by Old Oak and Park Royal Development Corporation
-
1 Oct 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 9 October 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.
Who's behind it
Company information only, from the register and Companies House
M C S Design Architectural Services Agent, an architecture practice
100 applications on PlanIndex · across 23 councils · 66% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
11 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
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 full applications in a median of 78 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
22 King Street Southall UB2 4DA
94% historically approved · decision due ~10 Aug
Submission of demolition method statement/ construction management plan pursuant to condition 20 of planning permission Ref: 225404FUL dated 09.03.2022 'Constructions of two storey rear extension; construction of a second and third floor to provide additional live-in accommodation, prayer space and storage (Mixed Use Class Sui Generis/F1(f)) including internal alterations and renovations, improved outdoor amenity space, and associated elevational works including the installation of a roof dome (Following demolition of 11, 13 and 15 Elmfield Road)'
Awaiting decision Conditions Extension Demolition 2 docs -
22 King Street Southall UB2 4DA
94% historically approved · decision due ~10 Aug
Submission of demolition method statement/ construction management plan pursuant to condition 20 of planning permission Ref: 225404FUL dated 09.03.2022 'Constructions of two storey rear extension; construction of a second and third floor to provide additional live-in accommodation, prayer space and storage (Mixed Use Class Sui Generis/F1(f)) including internal alterations and renovations, improved outdoor amenity space, and associated elevational works including the installation of a roof dome (Following demolition of 11, 13 and 15 Elmfield Road)'
Awaiting decision Conditions Extension Demolition 2 docs -
22 King Street Southall UB2 4DA
Details of installation of acoustic lobbies to external entrances and exits pursuant to condition 11 of planning permission ref: 225404FUL dated 01/07/2025 for: Constructions of two storey rear extension; construction of a second and third floor to provide additional live-in accommodation, prayer space and storage (Mixed Use Class Sui Generis/F1(f)) including internal alterations and renovations, improved outdoor amenity space, and associated elevational works including the installation of a roof dome (Following demolition of 11, 13 and 15 Elmfield Road)
Granted Extension Demolition 11 docs -
8 And 8A King Street Southall UB2 4DA
Change of use of rear of ground floor retail unit and upper floors from residential accommodation (Use class C3) to a Large House in Multiple Occupation (Use Class Sui Generis).
Refused 10 docs -
22 King Street Southall UB2 4DA
Details of sound insulation of the non-residential building envelope and of any mitigation measures pursuant to condition 7 of planning permission ref: 225404FUL dated 01/07/2025 for: Constructions of two storey rear extension; construction of a second and third floor to provide additional live-in accommodation, prayer space and storage (Mixed Use Class Sui Generis/F1(f)) including internal alterations and renovations, improved outdoor amenity space, and associated elevational works including the installation of a roof dome (Following demolition of 11, 13 and 15 Elmfield Road)
Granted Extension Demolition 11 docs -
8 And 8A King Street Southall UB2 4DA
75% historically approved · decision due ~17 Oct
Change of use from residential accommodation (Use class C3) to a Large House in Multiple Occupation (Use Class Sui Generis) over four levels, rear of ground floor retail unit, first, second and third floors above
Awaiting decision Full applications 10 docs
Other full applications
In Old Oak and Park Royal Development Corporation
-
262904FUL Granted
139 Lady Margaret Road Southall UB1 2PS
Conversion of existing dwellinghouse into 2 self-contained flats; ground floor rear infill extension
-
262967FUL Granted
5A Vernon Rise Greenford UB6 0EQ
Alteration of roof from hip to gable end with installation of window to gable wall; rear roof extension; removal of side chimney and installation of two roof lights to front roofslope
-
262968FUL Granted
5A Vernon Rise Greenford UB6 0EQ
Single storey rear extension
-
262795FUL Granted
31 Perryn Road Acton W3 7LS
Reconversion of the existing property from two self-contained flats into a single family dwellinghouse; single storey rear/side extension; part first floor rear extension incorporating a Juliet balcony; front elevation infill extension to the porch and first floor above; alterations to the roof, installation of four side rooflights; alteration to front fenestration; associated refuse and cycle storage, landscaping and associated works (Following demolition of existing garage and rear extension)
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26/0170/FULOPDC Awaiting decision
Unit 21 , Victoria Industrial Estate, Victoria Road, LONDON, W3 6UU
Minor external alterations and the change of use from Class B8 to B2 and B8.