Planning application
358-384 Old Kent Road London Southwark SE1 5AA
Works: Extension Loft or dormer
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Details of Condition 6 'Internal Noise Level' required by planning condition 21/AP/0054, which gave consent for: "Erection of a mansard roof extension to provide 9 new residential dwellings (C3), through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage".
As published by the council, reference 26/AP/1157
Application record
- Reference
- 26/AP/1157
- Type
- Approval of Details
- Status
- Under consideration/assessment
- Received
- 22 Apr 2026
- Validated
- 22 Apr 2026
- Ward
- Old Kent Road
- Parish
- Peckham And Nunhead
- Postcode
- SE1 5AA
Site history
Applications at this address on the Southwark register
This site has had 4 applications since 2022: 2 approved, 0 refused.
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26/AP/2666 Awaiting decision
358-384 Old Kent Road London Southwark SE1 5AA
Details of Condition 4 'Overheating assessment' required by planinng permission ref. 21/AP/0054 'Erection of a mansard roof extension to provide 9 new residential dwellings (C3), through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage.'
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22/AP/3279 Granted
358 - 384 Old Kent Road London Southwark SE1 5AA
Details of Condition 5 'Waste Water Management Strategy' as required by planning application 21/AP/0054, for:"Erection of a mansard roof extension to provide 9 new residential dwellings (C3), through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage".
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22/AP/1647 Granted
358-384 Old Kent Road London Southwark SE1 5AA
Details of Condition 4 'Overheating Assessment' as required by full planning application 21/AP/0054, for:"Erection of a mansard roof extension to provide 9 new residential dwellings (C3), through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage".
Timeline
Dates from the published record
-
22 Apr 2026
Received by Southwark
-
28 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 17 June 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Southwark took a median of 51 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Mab design and development LTD Agent, a design practice registered in Waltham Cross
Active · incorporated 2017 · Waltham Cross
19 applications on PlanIndex · across 6 councils · 85% 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
12 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 Southwark for determination, against a statutory target of eight weeks. Over the last year Southwark decided condition discharge and variation applications in a median of 47 days. More in our guide to how long planning decisions take.
About condition discharge and variation applications
This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
358 Old Kent Road London Southwark SE1 5AA
Details of Condition 10 'Balustrade Details' required by planning permission 21/AP/0054, for:"Erection of a mansard roof extension to provide 9 new residential dwellings (C3) through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage".
Granted Conditions Extension Loft or dormer 12 docs -
358 Old Kent Road London Southwark SE1 5AA
Details of Condition 9 'Parapet Line Details' required by planning permission 21/AP/0054, for:"Erection of a mansard roof extension to provide 9 new residential dwellings (C3) through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage".
Granted Conditions Extension Loft or dormer 15 docs -
358-384 Old Kent Road London Southwark SE1 5AA
Details of Condition 4 'Overheating Assessment' as required by full planning application 21/AP/0054, for:"Erection of a mansard roof extension to provide 9 new residential dwellings (C3), through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage".
Granted Conditions Extension Loft or dormer 8 docs -
358 Old Kent Road London Southwark SE1 5AA
Details of Condition 3 'Air Quality Assessment' as required by planning application 21/AP/0054, for:"Erection of a mansard roof extension to provide 9 new residential dwellings (C3), through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage".
Granted Conditions Extension Loft or dormer 9 docs -
Ground Floor Flat 372 Old Kent Road London Southwark SE1 5AA
Change of use of the ground floor and basement from Class C3 residential , to a Sui Generis use as shop/office space at the front and residential at the rear of the property (personal permission sought).
Withdrawn Full applications 14 docs -
358-384 Old Kent Road London Southwark SE1 5AA
95% historically approved · decision due ~3 Nov
Details of Condition 4 'Overheating assessment' required by planinng permission ref. 21/AP/0054 'Erection of a mansard roof extension to provide 9 new residential dwellings (C3), through the removal and replacement of the original butterfly roof structure and parapet together with reinstating the Victorian architectural details on the facade, improvements to the existing refuse facilities and cycle storage.'
Awaiting decision Extension Loft or dormer
Other condition discharge and variation applications
In Southwark
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26/AP/1592 Granted
Aylesbury Estate Land Bounded By Albany Road Portland Street Bagshot Street Alvey Street East Street And Dawes Street London SE17
Deed of variation to amend Schedule 3, paragraph 16 (Car Club Scheme) in relation to Plot 18 / Development Phase 2A of the section 106 agreement attached to planning permission ref. 14/AP/3844 date 05.08.2015 for 'Demolition of existing buildings and redevelopment to provide a mixed use development comprising a number of buildings ranging between 2 to 20 storeys in height (9.45m - 72.2m AOD), providing 830 residential dwellings (Class C3); flexible community use, early years facility (Class D1) or gym (Class D2); public and private open space; formation of new accesses and alterations to existing accesses; energy centre; gas pressure reduction station; associated car and cycle parking and associated works.'
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26/AP/1296 Granted
Castle Service Station 100-114 Walworth Road London Southwark SE17
Variation of legal agreement ref. 02/AP/1290, to modify Clause 12 of the S106 Agreement (to widen occupation of the property outside of term time to enable non-student occupancy for a maximum of 13 weeks).
-
26/AP/1611 Granted
Coburg House 63-67 Newington Causeway London Southwark SE1 6LS
Partial discharge of of condition 10 (London Underground Infrastructure) ' Demolition phase only' required by planning permission ref no. 24/AP/3621
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26/AP/2131 Granted
22-24 Southwark Bridge Road London Southwark SE1 9HB
Details of condition 7 (Noise Monitoring Report) as required by planning permission ref: 25/AP/3515 dated 18/05/2026 for 'Partial demolition of 22 and 24 Southwark Bridge Road and redevelopment of site comprising the erection of an 18 storey building to accommodate a hotel use with associated amenity spaces (Class C1) with flexible cultural use (Sui Generis) at ground floor level, associated cycle parking, landscaping, access and servicing, plant and equipment and all other associated works'.
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26/AP/1984 Granted
Surrey Quays Railway Station Lower Road London Southwark SE16 2UE
Details of condition 7 'Delivery and servicing management plan' required by planning permission ref no. 23/AP/3557 (dated 4th April 2024) 'Variation of Condition 1 (Approved Plans) pursuant to planning permission 22/AP/1802 for 'Approval of Reserved Matters (pursuant to Outline planning permission 20/AP/3744) for the erection of a new canopy related to a future northern entrance to Surrey Quays Station fronting onto Deal Porters Way and the change of use of land adjacent to 181 Lower Road to operational railway land with the erection of a new single storey building containing back of house facilities to enable the development of step-free access and stairs to platform level (this application is to be read in conjunction with Prior Approval Application 23/AP/3594). The amendments include the following: Entrance canopy redesign, Back Of House layout changes, Back Of House external changes and Landscape amendments'. The wording of condition 7 was amended via s96a application (25/AP/2953) dated 10/11/2025