Planning application
1 Alleyn Road London Southwark SE21 8AB
Works: Extension
Relates to 23/AP/3087
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Variation of Conditions 1 (Approved Plans) for planning permission ref.23/AP/3087. The proposed changes are: 1. Change in front landscaping (design attached) 2. Removing the lean-to conservatory and reducing the size of the basement whilst moving the lightwell further away from the neighbouring property.
As published by the council, reference 25/AP/3358
Application record
- Reference
- 25/AP/3358
- Type
- S.73 Vary/Remove Conds/Minor Alterations
- Status
- Granted
- Decision
- Granted As published: Variation Minor Material Changes Granted
- Received
- 18 Nov 2025
- Validated
- 10 Dec 2025
- Decided
- 29 Jan 2026
- Ward
- Dulwich Wood
- Parish
- Dulwich
- Decision by
- Delegated Panel - Complex
- Postcode
- SE21 8AB
Site history
Applications at this address on the Southwark register
This site has had 3 applications since 2023: 3 approved, 0 refused.
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26/AP/1793 Granted
1 Alleyn Road London Southwark SE21 8AB
Details of Condition 4 - Landscaping Scheme as required by planning permission 23/AP/3087 dated 13/03/2024 for Enlargement of existing basement with 1no. Lightwell to the front and 1no. Lightwell to the south elevation, associated with new patio area in the rear garden and replacement of ground floor windows; - Construction of loft conversion with 2no. dormer windows and 2no. roof windows on northwest and southeast elevations, associated with removal of 1no. chimney to the front slope and change of roof top on garage; - Conversion of side conservatory to a bricked extension; - Enlargement of vehicular entrance to garage and blocking up of a side door, - blocking up of a rear window and door of the garage; - Installation of solar slates on front and rear roof slopes of both main house and garage; - Installation of 2nos. ASHP and 1no. AC unit on south elevation; - Proposed material railings and gates on the front boundary;
-
23/AP/3087 Granted
1 Alleyn Road London Southwark SE21 8AB
Enlargement of existing basement with 1no. Lightwell to the front and 1no. Lightwell to the south elevation, associated with new patio area in the rear garden and replacement of ground floor windows; - Construction of loft conversion with 2no. dormer windows and 2no. roof windows on northwest and southeast elevations, associated with removal of 1no. chimney to the front slope and change of roof top on garage;- Conversion of side conservatory to a bricked extension;- Enlargement of vehicular entrance to garage and blocking up of a side door,- blocking up of a rear window and door of the garage; - Installation of solar slates on front and rear roof slopes of both main house and garage;- Installation of 2nos. ASHP and 1no. AC unit on south elevation;- Proposed material railings and gates on the front boundary;
Timeline
Dates from the published record
-
18 Nov 2025
Received by Southwark
-
10 Dec 2025
Validated
Checked as complete and ready for consideration.
-
29 Jan 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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23/AP/3087 Granted
1 Alleyn Road London Southwark SE21 8AB
Enlargement of existing basement with 1no. Lightwell to the front and 1no. Lightwell to the south elevation, associated with new patio area in the rear garden and replacement of ground floor windows; - Construction of loft conversion with 2no. dormer windows and 2no. roof windows on northwest and southeast elevations, associated with removal of 1no. chimney to the front slope and change of roof top on garage;- Conversion of side conservatory to a bricked extension;- Enlargement of vehicular entrance to garage and blocking up of a side door,- blocking up of a rear window and door of the garage; - Installation of solar slates on front and rear roof slopes of both main house and garage;- Installation of 2nos. ASHP and 1no. AC unit on south elevation;- Proposed material railings and gates on the front boundary;
Documents
Plans, drawings, consultee responses and the officer's report
20 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 this grant of permission means
Southwark granted permission on 29 January 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 0.3 miles
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1 Alleyn Road London Southwark SE21 8AB
Details of Condition 4 - Landscaping Scheme as required by planning permission 23/AP/3087 dated 13/03/2024 for Enlargement of existing basement with 1no. Lightwell to the front and 1no. Lightwell to the south elevation, associated with new patio area in the rear garden and replacement of ground floor windows; - Construction of loft conversion with 2no. dormer windows and 2no. roof windows on northwest and southeast elevations, associated with removal of 1no. chimney to the front slope and change of roof top on garage; - Conversion of side conservatory to a bricked extension; - Enlargement of vehicular entrance to garage and blocking up of a side door, - blocking up of a rear window and door of the garage; - Installation of solar slates on front and rear roof slopes of both main house and garage; - Installation of 2nos. ASHP and 1no. AC unit on south elevation; - Proposed material railings and gates on the front boundary;
Granted Conditions Extension Loft or dormer +1 7 docs -
1 Alleyn Road London Southwark SE21 8AB
Enlargement of existing basement with 1no. Lightwell to the front and 1no. Lightwell to the south elevation, associated with new patio area in the rear garden and replacement of ground floor windows; - Construction of loft conversion with 2no. dormer windows and 2no. roof windows on northwest and southeast elevations, associated with removal of 1no. chimney to the front slope and change of roof top on garage;- Conversion of side conservatory to a bricked extension;- Enlargement of vehicular entrance to garage and blocking up of a side door,- blocking up of a rear window and door of the garage; - Installation of solar slates on front and rear roof slopes of both main house and garage;- Installation of 2nos. ASHP and 1no. AC unit on south elevation;- Proposed material railings and gates on the front boundary;
Granted Householder Extension Loft or dormer +1 30 docsSmall domestic -
12 Alleyn Crescent London Southwark SE21 8BN
Specie and Location of Tree:A Whitebeam tree approximately 9m in height, situated in the small front garden (see plan). The tree is very dense and wide spreading.Description of Dulwich Estates Approved Works:Crown thin by 25% including the removal of dead wood and necessary shortening of long lateral branches particularly towards the house. The height and basic shape should be retained.
Granted Trees 6 docs -
1 Alleyn Crescent London Southwark SE21 8BN
Works to a tree with a TPO: Tree ID 8189 A Box Elder tree approximately 8m in height, situated on the left-hand side of the rear garden, overhanging the pavement on Alleyn Road. There is dead wood present in the upper crown and excessive growth over the pavement. Dead wood to be removed and overhang to the pavement and streetlamp reduced back by up to 2m ensuring a natural final shape. All pruning should be targeted at suitable growth points
Granted Trees 4 docs -
9 Loggetts Alleyn Park London Southwark SE21 8AS
T1 - Ash - Remove including stump due to historic subsidence. T2 - Eucalyptus - Remove due to low amenity value, poor health and proximity to building. Shrubs - Remove
Refused Trees 7 docs -
7 Alleyn Crescent London Southwark SE21 8BN
Construction of a two-storey side extension; replacement of front boundary timber wall to brick; inclusion of bin store and installation of a ground floor side facing window
Granted Householder Extension Windows or glazing 27 docsDomestic
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Variation of Condition 1 of full planning permission 24/AP/1633 dated 08/08/2024 for Listed Building Consent for repairs to property to pre-subsidence condition situated within the Grade II listed building. II listed building known as No. 70 Renforth Street At Flat 5 70 Renforth Street. Removal: Within section 1 specifically relating to the repair proposal and in line with a joint site visit with the heritage representative we have attached details for a more sympathetic, less intrusive repair to the building which is suffering from ground movement damage. The repair proposal uses a Helifix designed repair process to be less intrusive and impactful to the visual appearance.
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26/AP/2021 Granted
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26/AP/0728 Granted
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26/AP/1775 Granted
52 Ulverscroft Road London Southwark SE22 9HG
Variation of Condition 4 (Plant Noise) pursuant to planning permission 24/AP/2818 (Construction of a single rear/side infill extension and a 1st floor extension to the outrigger. Loft conversion including roof ridge raise by 300mm, rear roof dormer and roof outrigger dormer. Installation of 2no. rooflights to the front roof slope. Replacement of all windows and external doors, PV panels to the front roof slope and rear outrigger roof and installation of air source heat pump in rear garden). Variation seeks to amend: To remove the requirement for plant sound output level to 10dB below background.
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26/AP/1610 Granted
170 Lynton Road London Southwark SE1 5RB
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