Planning application
51 Alleyn Road London Southwark SE21 8AD
Works: Loft or dormer Roofing Demolition Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Relates to 22/AP/3632
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Non-material amendment of planning permission 24/AP/0675 (Variation of Condition 1 'Approved Plans' of planning permission 22/AP/3632 dated 31/03/2023 for 'Demolition of an existing two-storey dwellinghouse and the construction of a 3-storey with basement dwellinghouse.' Amendments include: changes to roof to create single roof form with continuous eaves and ridge height; changes to positioning of PV panels and positioning and form of dormer windows; changes to footprint and massing of building, including setting flanks back from front elevation; repositioning and reducing footprint of basement; addition of canopy to rear elevation; replacement of front boundary wall and gates; repositioning of air source heat pump within rear garden; and changes to external detailing, windows and doors, front canopy, bin store and internal layout.) to replace the lead canopy at the front of the property with a corten steel canopy, and replacing the glazed pergola at the rear with an aluminium louvred pergola.
As published by the council, reference 26/AP/0717
Application record
- Reference
- 26/AP/0717
- Type
- Variation: Non-Material Changes
- Status
- Under consideration/assessment
- Received
- 12 Mar 2026
- Validated
- 16 Apr 2026
- Ward
- Dulwich Wood
- Parish
- Dulwich
- Postcode
- SE21 8AD
Site history
Applications at this address on the Southwark register
This site has had 5 applications since 2022: 2 approved, 0 refused.
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25/AP/2816 Awaiting decision
51 Alleyn Road London Southwark SE21 8AD
T 04 -Apple remove tree C1 Tree - Fell this low quality category. Permission previously granted by southwark council dated 14/04/2021 (now expired) - LBS reg. No: 21/AP/0607
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24/AP/0419 Granted
51 Alleyn Road London Southwark SE21 8AD
T14 Wild Cherry: Remove tree. Dead. T15 Common Ash: Remove tree. Poor quality tree adjacent to building. Replacement planting as per previous consents and Dulwich Estate licence.
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23/AP/2051 Withdrawn
51 Alleyn Road London Southwark SE21 8AD
Variation of Condition 1 'Approved Plans' of planning permission ref. 22/AP/3632 dated 31.03.2023 for the 'Demolition of an existing two-storey dwellinghouse and the construction of a 3-storey with basement dwellinghouse'. Variations sought: The eaves on the northern side of the proposed dwelling would be raised to the same level as the rest of the roof, the rear roof slope would be realigned as a single slope, the single rooflight on the rear roof slope would be removed and one of the rear dormers would be repositioned.
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22/AP/3632 Granted
51 Alleyn Road London Southwark SE21 8AD
Demolition of an existing two-storey dwellinghouse and the construction of a 3-storey with basement dwellinghouse.
Timeline
Dates from the published record
-
12 Mar 2026
Received by Southwark
-
16 Apr 2026
Validated
Checked as complete and ready for consideration.
-
10 Aug 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 11 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 52 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
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22/AP/3632 Granted
51 Alleyn Road London Southwark SE21 8AD
Demolition of an existing two-storey dwellinghouse and the construction of a 3-storey with basement dwellinghouse.
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in London
14 applications on PlanIndex · across 4 councils
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
31 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.
Trade members open them 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 500 metres
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51 Alleyn Road London Southwark SE21 8AD
T14 Wild Cherry: Remove tree. Dead. T15 Common Ash: Remove tree. Poor quality tree adjacent to building. Replacement planting as per previous consents and Dulwich Estate licence.
Granted Trees 6 docs -
51 Alleyn Road London Southwark SE21 8AD
100% historically approved · decision due ~25 Nov
T 04 -Apple remove tree C1 Tree - Fell this low quality category. Permission previously granted by southwark council dated 14/04/2021 (now expired) - LBS reg. No: 21/AP/0607
Awaiting decision Trees 5 docs -
51 Alleyn Road London Southwark SE21 8AD
Variation of Condition 1 'Approved Plans' of planning permission ref. 22/AP/3632 dated 31.03.2023 for the 'Demolition of an existing two-storey dwellinghouse and the construction of a 3-storey with basement dwellinghouse'. Variations sought: The eaves on the northern side of the proposed dwelling would be raised to the same level as the rest of the roof, the rear roof slope would be realigned as a single slope, the single rooflight on the rear roof slope would be removed and one of the rear dormers would be repositioned.
Withdrawn Amendments Loft or dormer Demolition 22 docsDomestic -
51 Alleyn Road London Southwark SE21 8AD
Demolition of an existing two-storey dwellinghouse and the construction of a 3-storey with basement dwellinghouse.
Granted Full applications Demolition 47 docsDomestic -
59 Alleyn Road London Southwark SE21 8AD
95% historically approved · decision due ~21 Sep
Lawson Cypress tree approximatly 9.6 metres in height situated in the front garden. Fell to ground level and stump grind. Conditional replacement. Magnolia kobus (Cobus Magnolia). Tree to be procured in line with BS3936 [1992] standard (8-10cm stem circumference). The new tree is to be planted during October 2026 and March 2027 planting season.
Awaiting decision Trees -
57 Alleyn Road London Southwark SE21 8AD
96% historically approved · decision due ~11 Nov
Details of condition 4(Foundation Design) pursuant to planning permission ref. no. 22/AP/1085: Demolition of existing vacant detached single family house and erection of replacement detached, two-storey, single family house, with basement and rear garden building (including cycle storage). New driveway to the front, and landscaping across the site.
Awaiting decision Conditions Demolition 13 docs
Other condition discharge and variation applications
In Southwark
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26/AP/1080 Decided
Aylesbury Estate Land Bounded By Albany Road Portland Street Bagshot Street Alvey Street East Street And Dawes Street London SE17
Discharge Schedule 3, Clause 6.2 (Developer to Notify Council) of the S106 agreement (application ref. 14/AP/3844) for Demolition of existing buildings and phased redevelopment to provide a mixed use development comprising a number of buildings ranging between 2 to 20 storeys in height (12.45m - 68.85m AOD) with capacity for up to 2,745 residential units (Class C3),up to 2,500sqm of employment use (Class B1); up to 500sqm of retail space (Class A1); 3,100 to 4,750sqm of community use; medical centre and early years facility (Class D1); in addition to up to 3,000sqm flexible retail use (Class A1/A3/A4) or workspace use (Class B1); new landscaping; parks, public realm; energy centre; gas pressure reduction station; up to 1,098 car parking spaces; cycle parking; landscaping and associated works.
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26/AP/1251 Decided
Chatelain House 182-202 Walworth Road London Southwark SE17 1RW
Details submitted to satisfy Schedule 3 Clause 5.2 (Part 2 (Commencement) of the Housing Delivery Monitoring Table) of the Section 106 Agreement associated with planning permission ref: 24/AP/0892
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26/AP/0992 Decided
Heygate Estate And Surrounding Land Bound By New Kent Road To The North, Rodney Place And Rodney Road To The East, Wansey Street To The South And Walworth Road And Elephant Road To The West London SE17
Details submitted to satisfy Schedule 3 paragraph 26.13 (Site Wide Energy Strategy - final strategy) of the section 106 agreement associated with planning permission ref. 12/AP/1092 'Outline application for: Redevelopment to provide a mixed use development comprising a number of buildings ranging between 13.13m (AOD) and 104.8m (AOD) in height with capacity for between 160,579sqm GEA (min) and 254,000sqm GEA (max) residential floorspace together with retail (Class A1-A5), business (Class B1), leisure and community (Class D2 and D1), energy centre (sui generis) uses. New landscaping, park and public realm, car parking, means of access and other associated works).'
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26/AP/0546 Decided
Land Known As Devonshire Place 747-759 And 765-775 Old Kent Road And Land At Devonshire Grove London SE15 1NZ
Variation of Section 106 Agreement (ref no. LEG/RP/PL/S106/RR020/465) associated with planning permission 23/AP/1862, which gave consent for: "Phased mixed-use redevelopment of the site, comprising: - Demolition of all existing buildings/structures, site clearance and excavation; - Construction of buildings to provide residential dwellings (Class C3) and flexible commercial, business and service space (Class E); - Construction of buildings to provide purpose built student accommodation including associated amenity and ancillary space, flexible commercial, business, service and community spaces within Classes E/F2(b) (Sui Generis); and - Provision of associated car and cycle parking, open space and landscaping, means of access and highway alterations, installation of plant and utilities and all other associated ancillary works incidental to the development". This Deed of Variation application seeks changes to the definitions, schedules and appendices (as appropriate) within the Section 106 Agreement in connection with changes formally sought under a concurrent non-material amendment application, the reference number for which is 26/AP/0377. The changes to the Section 106 Agreement sought by the Deed of Varation application would: - reflect all of the changes proposed by 26/AP/0377 to the sizes and layouts of the various buildings, elevations, basements, rooms, dwellings and external facilities across the consented development; - reflect the conversion of 75 dwellings from their consented Shared Ownership tenure to their proposed Social Rent tenure; - insert the GLA's Mortgagee in Possession (MiP) clauses; - omit the requirement to explore opportunities for healthcare providers to occupy the Block C commercial premises, enabling the applicant to instead proceed to exploring opportunities for the premises to be occupied as affordable workspace; and - make other non-material changes to the Section 106 Agreement wording.
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26/AP/0377 Decided
Land Known As Devonshire Place 747-759 And 765-775 Old Kent Road And Land At Devonshire Grove London SE15 1NZ
Non-material amendment to planning permission 23/AP/1862 (as amended by 26/AP/1158), which gave consent for: "Phased mixed-use redevelopment of the site, comprising: - Demolition of all existing buildings/structures, site clearance and excavation; - Construction of buildings to provide residential dwellings (Class C3) and flexible commercial, business and service space (Class E); - Construction of buildings to provide purpose built student accommodation including associated amenity and ancillary space, flexible commercial, business, service and community spaces within Classes E/F2(b) (Sui Generis); and - Provision of associated car and cycle parking, open space and landscaping, means of access and highway alterations, installation of plant and utilities and all other associated ancillary works incidental to the development)". The non-material amendments sought by 26/AP/0377 are: - Change of tenure of the 75 consented dwellings in Building C from Shared Ownership to Social Rent; - Relocation of the consented basement at Building A to Building B; - Re-sizing of the consented basement at Building D; - Changes across all four buildings to the circulation core arrangements, as well as the size and layout of the internal communal amenity facilities, cycle storage facilities, refuse stores and ancillary facilities; - Reconfiguration of the consented rooftops, affecting the rooftop plant areas, the shared communal amenity spaces, and the extent and nature of greening; - Changes to the consented elevations (including small reductions in the overall height) of Buildings A, B, C and D; - Adjustments to the layouts of the consented Class C3 homes, including in some instances the associated balconies; - Adjustments to the distribution of the consented wheelchair Class C3 homes; and - Removal/changes to some legal obligations, including the Healthcare Facility and the Early Stage Viability Review trigger timeframe.