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Planning application

56 Alleyn Park London Southwark SE21 8SF

Granted Southwark 25/AP/3817 Householder Application

Works: Extension Demolition Small domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

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

As published by the council, reference 25/AP/3817

Application record

Reference
25/AP/3817
Type
Householder Application
Status
Granted
Decision
Householder - GRANTED
Received
29 Dec 2025
Validated
30 Dec 2025
Decided
2 Mar 2026
Ward
Dulwich Wood
Parish
Dulwich
Decision by
Delegated Panel - Simple
Postcode
SE21 8SF

Site history

Applications at this address on the Southwark register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 26/AP/0801 Granted

    56 Alleyn Park London Southwark SE21 8SF

    Discharge of Condition 3 foundation details within the influencing distance (30m) of local trees as required by planning permission 25/AP/3817 dated 02/03/2026 for Construction of a single-storey side and rear extension following demolition of the existing garage, including solar panels on the roof.

    Decided 29 Apr 2026 Conditions

Timeline

Dates from the published record

  1. 29 Dec 2025

    Received by Southwark

  2. 30 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 2 Mar 2026

    Decision issued: Householder - GRANTED

  4. 10 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/AP/0801 Granted

    56 Alleyn Park London Southwark SE21 8SF

    Discharge of Condition 3 foundation details within the influencing distance (30m) of local trees as required by planning permission 25/AP/3817 dated 02/03/2026 for Construction of a single-storey side and rear extension following demolition of the existing garage, including solar panels on the roof.

    Decided 29 Apr 2026 Conditions

Who's behind it

Company information only, from the register and Companies House

Agent on file, registered in London

20 applications on PlanIndex · across 2 councils · 100% granted

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Documents

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.

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What this grant of permission means

Southwark granted permission on 2 March 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 householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 56 Alleyn Park London Southwark SE21 8SF

    26/AP/0801 Submitted 19 Mar 2026 1m away

    Discharge of Condition 3 foundation details within the influencing distance (30m) of local trees as required by planning permission 25/AP/3817 dated 02/03/2026 for Construction of a single-storey side and rear extension following demolition of the existing garage, including solar panels on the roof.

    Granted Conditions Extension Demolition +1 8 docs
    Small domestic
  • 3 Morkyns Walk Alleyn Park London Southwark SE21 8BG

    22/AP/3968 Submitted 21 Nov 2022 69m away

    Holly (T1, c.5m tall) and Conifer (T2, c.4m tall) are under 60cm apart on the front elevation - Fell as close to ground level as possible because they are growing too close to the building (under 65cm and under 55cm away)

    Granted Trees 8 docs
  • 49 Alleyn Park London Southwark SE21 8AT

    22/AP/3627 Submitted 20 Oct 2022 71m away

    Works to a TPO tree: T1- Oak Tree, to lightly thin the crown trimming back from the neighbouring Koelreuteria tree.

    Granted Trees 7 docs
  • Hunts Slip Road And Alleyn Park Triangle London Southwark SE21 7LJ

    26/AP/1576 Submitted 29 May 2026 76m away

    Apple species (7807) and Norway Maple (102) - Fell to ground level

    Decided Trees 6 docs
  • 3 Morkyns Walk Alleyn Park London Southwark SE21 8BG

    22/AP/3866 Submitted 9 Nov 2022 76m away

    Replacement of existing single and double glazed timber and PVC windows with triple glazed aluminium-timber composite windows and raising of main and rear roof in order to install additional insulation and a ventilation layer.

    Granted Full applications Windows or glazing 17 docs
  • 61 Alleyn Park London Southwark SE21 8AT

    23/AP/2539 Submitted 8 Sep 2023 101m away

    Works to TPO trees:T1 - Japanese Acer located in the front garden of 61 Alleyn Park. Tree is very close to the building and there is significant structural damage to require that this tree is removed to ground level and the stump grubbed out. G1 - Group of 4 Medium/Large size Lawson Pine trees growing in the front garden and on the boundary of 63 Alleyn Park and 61 Alleyn Park. Both properties have structural damage and the trees on the boundary between both properties need to be removed to ground level.

    Granted Trees 15 docs

In Southwark

  • 26/AP/0707 Granted

    33 Abbotswood Road London Southwark SE22 8DJ

    Construction of a rear dormer extension and ground floor rear extension.

    11 Mar 2026 Householder
  • 26/AP/0784 Granted

    60 Grove Park London Southwark SE5 8LF

    Refurbishment of the property including replacement of glazing with thermally efficient conservation windows templated after originals, construction of a single-storey rear extension, a loft extension, minor internal partition alterations, and removal of external soil vent pipes.

    18 Mar 2026 Householder
  • 26/AP/1488 Granted

    15 Canon Beck Road London Southwark SE16 7DJ

    Loft conversion including the insertion of 2 no. rooflights to the front roof slope; conversion of the existing garage to a habitable room with an associated window to replace the existing garage door on the front elevation, installation of an Air Source Heat Pump and other alterations to the rear elevation fenestration at ground floor level.

    22 May 2026 Householder
  • 26/AP/0971 Granted

    86 Henslowe Road London Southwark SE22 0AS

    Retrospective planning permission for alterations to front garden layout including a front porch with projecting canopy, alterations to window apertures and fenestration, provision of cycle and refuses stores, along with hard and soft landscaping. new bin store and raised porch roof and revisions to front elevation fenestration.

    2 Apr 2026 Householder
  • 26/AP/1519 Granted

    61 Tyrrell Road London Southwark SE22 9NE

    Construction for a rear and side wrap around ground floor extension

    27 May 2026 Householder