Planning application
34 Alleyn Road London Southwark SE21 8AL
Works: Extension Loft or dormer Windows or glazing
Relates to 26/AP/0376
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Variation of Condition 1 (Approved Plans) pursuant to planning permission 26/AP/0376 dated 13.02.2026 for 'Variation of Condition 1 (Approved Plans) for application 24/AP/3809 dated 17.02.2025 for: Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of an air source heat pump unit at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access.' Amendments sought include: -Changes to the size and position of rooflights; -Changes to the design and type of rear elevation fenestration; -Extension of the basement to the front to create a store for 2 no. AC units and 2 no. ASHP units; Amendment sought in current application: To add 4No. of rooflights to the main roof slope
As published by the council, reference 26/AP/0881
Application record
- Reference
- 26/AP/0881
- Type
- S.73 Vary/Remove Conds/Minor Alterations
- Status
- Granted
- Decision
- Variation Minor Material Changes Granted
- Received
- 25 Mar 2026
- Validated
- 26 Mar 2026
- Decided
- 11 May 2026
- Ward
- Dulwich Wood
- Parish
- Dulwich
- Decision by
- Delegated Panel - Simple
- Postcode
- SE21 8AL
Site history
Applications at this address on the Southwark register
This site has had 4 applications since 2025: 2 approved, 0 refused.
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26/AP/0515 Decided
34 Alleyn Road London Southwark SE21 8AL
Non-material amendment to planning permission ref no. 24/AP/3809 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on reduced footprint, enlargement to existing basement with associated lightwells to front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to house), installation of an air source heat pump unit to lower ground floor with associated plant equipment, replacement front garden paving, and adjustment to front garden boundary to improve vehicle access'. NMA sought to amend the description of development to: 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of 2No. of air source heat pump units and 2No. of AC units at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access'
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26/AP/0376 Granted
34 Alleyn Road London Southwark SE21 8AL
Variation of Condition 1 (Approved Plans) for application 24/AP/3809 dated 17/02/2025 for 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of an air source heat pump unit at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access.' Amendments sought include -Changes to the size and position of rooflights -Changes to the design and type of rear elevation fenestration -Extension of the basement to the front to create a store for 2No. AC units and 2No. ASHP units
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25/AP/2288 Awaiting decision
34 Alleyn Road London Southwark SE21 8AL
Demolition of the building with retention of the front façade to facilitate the development approved under 24/AP/3809 (amended description)
Timeline
Dates from the published record
-
25 Mar 2026
Received by Southwark
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26 Mar 2026
Validated
Checked as complete and ready for consideration.
-
11 May 2026
Decision issued: Variation Minor Material Changes Granted
-
10 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
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26/AP/0376 Granted
34 Alleyn Road London Southwark SE21 8AL
Variation of Condition 1 (Approved Plans) for application 24/AP/3809 dated 17/02/2025 for 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of an air source heat pump unit at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access.' Amendments sought include -Changes to the size and position of rooflights -Changes to the design and type of rear elevation fenestration -Extension of the basement to the front to create a store for 2No. AC units and 2No. ASHP units
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in London
30 applications on PlanIndex · across 8 councils · 83% granted
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
22 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 this grant of permission means
Southwark granted permission on 11 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 500 metres
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34 Alleyn Road London Southwark SE21 8AL
Variation of Condition 1 (Approved Plans) for application 24/AP/3809 dated 17/02/2025 for 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of an air source heat pump unit at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access.' Amendments sought include -Changes to the size and position of rooflights -Changes to the design and type of rear elevation fenestration -Extension of the basement to the front to create a store for 2No. AC units and 2No. ASHP units
Granted Amendments Extension Loft or dormer +1 21 docs -
34 Alleyn Road London Southwark SE21 8AL
95% historically approved · decision due ~15 Oct
Demolition of the building with retention of the front façade to facilitate the development approved under 24/AP/3809 (amended description)
Awaiting decision Householder Demolition 25 docsDomestic -
34 Alleyn Road London Southwark SE21 8AL
Non-material amendment to planning permission ref no. 24/AP/3809 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on reduced footprint, enlargement to existing basement with associated lightwells to front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to house), installation of an air source heat pump unit to lower ground floor with associated plant equipment, replacement front garden paving, and adjustment to front garden boundary to improve vehicle access'. NMA sought to amend the description of development to: 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of 2No. of air source heat pump units and 2No. of AC units at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access'
Decided Conditions Extension Loft or dormer +1 19 docs -
Ground Floor Flat 56 South Croxted Road London Southwark SE21 8BD
Construction of a single storey L-shaped rear extension with partially pitched and partially flat roof.
Granted Full applications Extension 21 docsSmall domestic -
25 Alleyn Road London Southwark SE21 8AB
Works to a tree with a TPO: T1 & T2 - Lime Trees, to re-pollard at previous pruning points. Retaining knuckles.
Granted Trees 8 docs -
23 Alleyn Road London Southwark SE21 8AB
T1. Mature veteran Oak tree - some removal of dead wood plus a small amount of crown lifting by up to 1.5metres in places to improve the balance and look of the tree
Granted Trees 9 docs
Other amendment applications
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26/AP/0728 Granted
Townsend House Strathnairn Street London Southwark SE1 5BU
Variation of condition 6 of planning permission ref no. 22/AP/3683 ( Demolition of existing garages and construction of four storey and five storey buildings providing 18 residential apartments (two x 1-bedroom units, nine x 2-bedroom units, seven x 3-bedroom units) with associated estate-wide hard and soft landscaping, cycle parking and refuse storage and the replacement of the existing substation). To split Condition 6 (Arboricultural Method Statement) in two parts of 6a and 6b.
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26/AP/1418 Granted
Cypress Tree House Dulwich Common London Southwark SE21 7EU
Variation of Condition 1 (approved plans) pursuant to planning permission ref: 25/AP/1310 dated 30.07.2025 for 'Construction of a single storey extension in the rear garden, installation of solar panels to the existing outrigger roof, new dormer windows to the rear and side roof light to the main roof, replacement of existing windows and door, alterations to some windows and doors, and replacement of the existing lean to shed roof.' Amendment sought: 1. Addition of a roof light to main roof flat roof 2. Repositioning of dormers
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26/AP/1549 Granted
10 Gomm Road London Southwark SE16 2TX
Variation of Condition 1 (approved plans) of planning permission 25/AP/3121 (Construction for a side and rear extension, alterations to elevations, detached garden office.) Variation sought: Change to party wall extension and alteration to roof finish and rooflights
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26/AP/2162 Awaiting decision
25 De Laune Street London Southwark SE17 3UU
Variation of Conditions pursuant to planning permission 25/AP/3455 (Demolition of the existing rear addition and the construction of a single-storey side and rear extension and an outrigger dormer extension; the replacement of the windows to the side and rear of the dwelling with timber framed double glazed units; addition of rooflight to existing mansard; and the addition of a Juliet balcony to the rear elevation, to replace the existing window.) Sought: To reflect the existing rear sash window location against the proposed rear extension height.
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26/AP/1020 Granted
5-7 Morecambe Street London Southwark SE17 1DX
Minor material amendments to planning permission ref: 24/AP/0486 granted on 20/02/2025 for: (Sub-division of existing residential unit to form 2 no. 2-bedroom self-contained dwellings and self-contained existing single storey artist workshop at the side. External alterations to the ground floor front elevation of proposed dwelling 2 to replace existing doors and windows, subdivision of the existing front garden space with associated bins and bike storage). Amendment sought: -Proposed variation to condition 1 (approved plans) which includes: - Cycle and Bin Storage location changed in the front garden of Unit 2 - Air Source Heat Pump relocated from the rear of the building to the front garden of Unit 2 - Soft landscaping in the front garden of Unit 2 is reduced. - Cycle storage location changed in the front garden of Unit 1 - Meter housing is proposed along the shared side front garden boundary of both Unit 1 and 2 and. - Removal of condition 3 (hard and soft landscaping).