7 Alleyn Crescent London Southwark SE21 8BN
Approved on 16 June 2026
Proposal
Two-storey side extension
- Received
- 21 April 2026
- Council
- London Borough of Southwark
- Ward
- Dulwich Wood
- ReceivedReceived21 Apr
- ValidatedValidated28 Apr
- Consult.Consultation
- TargetTarget Date22 Jun
- DecidedDecided16 Jun
Decided in 49 days (council typically 49)
About this application
This is a full planning application for a two storey side extension at 7 Alleyn Crescent London Southwark SE21 8BN. Southwark has handled 1,045 applications of this type. This one was decided in 56 days, 7 days longer than Southwark's typical decision time. There are no previous applications recorded at this address. In the past year there have been 83 applications across Dulwich Wood. We hold 1,063 applications in total for the SE21 postcode area.
93% of full applications at London Borough of Southwark were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- SE21 8BN
- Application type
- Householder Application
- Scale / size
- Small
- Parish
- Dulwich
Planning application dates
- Date validated
- 28 April 2026
- Target decision date
- 22 June 2026
Applicant and agent
- Agent
- Studioloop
- Architect profile
- STUDIOLOOP LTD
- Agent address
- Unit D216 Parkhall 40 Martell Road London SE21 8EN
Planning decision
- Statutory period
- 55 days
Site constraints
Designations that overlap or adjoin the site outline.
- Tree Preservation Order: Ref 581Covers the site
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)
flood storage areas, conservation areas, listed buildings, Article 4 directions, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Source: Southwark
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 12 Alleyn Crescent London Southwark SE21 8BN25/AP/1925 · TreesApproved0.0 mi
- 4 Alleyn Crescent London Southwark SE21 8BN26/AP/0294 · TreesApproved0.0 mi
- Loggetts Alleyn Park London Southwark SE21 8AS25/AP/1551 · TreesApproved0.0 mi
- 71 Alleyn Park London Southwark SE21 8AT25/AP/3443 · TreesApproved0.0 mi
- 5 Loggetts Alleyn Park London Southwark SE21 8AS26/AP/0508 · TreesApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering1.8 mi
- Bello Electrics LTDVerifiedElectrician3.3 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing5.5 mi
- S & M Solutions Ltd | Design and Build ContractorVerifiedLondonExtensionsLoft Conversions5.7 mi
Planning something similar?
See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.