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56 Alleyn Park London Southwark SE21 8SF

25/AP/3817Householder ApplicationApproved
Householder

Approved on 2 March 2026

Council decision: Householder - GRANTEDDelegated (officer decision)

Site boundary (council red line)

Proposal

Construction of a single-storey side and rear extension following demolition of the existing garage, including solar panels on the roof.

Received
29 December 2025
Decision level
Delegated (officer decision)
Ward
Dulwich Wood
Agent
Mittelman Associates LLP
  1. Received29 Dec
  2. Validated30 Dec
  3. Consult.22 Jan
  4. Target23 Feb
  5. Decided2 Mar

Decided in 62 days (council typically 49)

About this application

This is a full planning application for demolition at 56 Alleyn Park London Southwark SE21 8SF. Southwark has handled 1,045 applications of this type. This one was decided in 63 days, 2 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.

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 8SF
Application type
Householder Application
Scale / size
Small
Parish
Dulwich

Planning application dates

Date validated
30 December 2025
Last date for comments
22 January 2026
Target decision date
23 February 2026
Permission expires
2 March 2029

Applicant and agent

Agent
Mittelman Associates LLP
Agent address
C22A Parkhall 40 Martell Road London SE21 8EN

Planning decision

Statutory period
55 days

Additional information

Comments
0
Documents
22

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (24)

flood storage areas, conservation areas, listed buildings, Article 4 directions, tree preservation orders, 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.

Associated applications

  1. 2026
    19 Mar

    Discharge of Condition 3 foundation details within the influencing distance (30m) of local trees as required…

    ApprovedDischarge of conditions26/AP/0801
  2. 2025
    29 Dec

    Construction of a single-storey side and rear extension following demolition of the existing garage…

    This applicationApprovedFull25/AP/3817

Source: Southwark

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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