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1 Alleyn Road London Southwark SE21 8AB

25/AP/3358S.73 Vary/Remove Conds/Minor AlterationsApproved
Discharge / amendments

Approved on 29 January 2026

Council decision: Variation Minor Material Changes GrantedDelegated (officer decision)

Site boundary (council red line)

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.

Received
18 November 2025
Decision level
Delegated (officer decision)
Public comments
1
Ward
Dulwich Wood
  1. Received18 Nov
  2. Validated10 Dec
  3. Consult.31 Dec
  4. Target3 Feb
  5. Decided29 Jan

Decided in 50 days (council typically 49)

About this application

This is an application to amend a permission at 1 Alleyn Road London Southwark SE21 8AB. Southwark has handled 146 applications of this type. This one was decided in 72 days, 3 weeks longer than Southwark's typical decision time. There has been 1 other application 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.

88% of amendment 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 8AB
Application type
S.73 Vary/Remove Conds/Minor Alterations
Scale / size
Small
Parish
Dulwich

Planning application dates

Date validated
10 December 2025
Last date for comments
31 December 2025
Target decision date
3 February 2026
Permission expires
29 January 2029

Planning decision

Statutory period
55 days

Additional information

Documents
20

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Tree Preservation Order: Ref 581Part of the site · +1 more
  • 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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