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Planning application

17 Alleyn Park London Southwark SE21 8AU

Awaiting decision Southwark 25/AP/2585 Certificate of Lawful Dev. - Proposed

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Certificate of Lawful Development (Proposed) for Installation of Air Source Heat Pump

As published by the council, reference 25/AP/2585

Application record

Reference
25/AP/2585
Type
Certificate of Lawful Dev. - Proposed
Status
Under consideration/assessment
Received
10 Sep 2025
Validated
11 Sep 2025
Ward
Dulwich Wood
Parish
Dulwich
Postcode
SE21 8AU

Timeline

Dates from the published record

  1. 10 Sep 2025

    Received by Southwark

  2. 11 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 6 November 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Southwark took a median of 52 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in London

10 applications on PlanIndex · across 3 councils

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Documents

Plans, drawings, consultee responses and the officer's report

7 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 happens while it is decided

This application is with Southwark for determination, against a statutory target of eight weeks. Over the last year Southwark decided lawful development applications in a median of 50 days. More in our guide to how long planning decisions take.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 15 Alleyn Park London Southwark SE21 8AU

    25/AP/2579 Submitted 9 Sep 2025 51m away

    100% historically approved · decision due ~4 Nov

    T01 - Purple leaved Cherry Plum, approx. 10m high - Crown lift to 3.5m above ground level. Reduce southern limb (over driveway) by up to 3m back to closest growth point to tie in with canopy. Reduction of rest of canopy by up to 1m back to closest growth point to reshape. Reason - To provide sufficient clearance to property. T02 - Yew, approx. 4m high - Fell to ground level and remove all arisings. Reason - Self-seeded tree, growing into fence and Cherry Plum tree.

    Awaiting decision Trees 8 docs
    Small domestic
  • 15 Alleyn Park London Southwark SE21 8AU

    22/AP/1482 Submitted 25 Apr 2022 51m away

    Demolish existing rear ground floor extension and replace with new single-storey rear ground floor extension; Alterations to:- location of front door, roof profile of existing garage, garage opening; Installation of roof lights and Oriel window; Replace existing windows and increase size of dormer window.

    Granted Householder Extension Loft or dormer +2 25 docs
    Small domestic
  • 13 Alleyn Park London Southwark SE21 8AU

    25/AP/2569 Submitted 8 Sep 2025 67m away

    5 Day Notice T1 - Lime Tree to remove dead, damaged and diseased wood only (TPO Zone - area type)

    Granted Trees 7 docs
  • 23 Alleyn Park London Southwark SE21 8AU

    26/AP/2338 Submitted 5 Aug 2026 80m away

    95% historically approved · decision due ~1 Oct

    Demolition of existing property with a replacement detached dwelling.

    Awaiting decision New dwelling Demolition 38 docs
    Domestic
  • 11 Alleyn Park London Southwark SE21 8AU

    26/AP/2170 Submitted 22 Jul 2026 80m away

    95% historically approved · decision due ~16 Sep

    Five day notification for tree works: Removal of dead conifer.

    Decided Trees
  • 75 Alleyn Road London Southwark SE21 8AD

    22/AP/4047 Submitted 28 Nov 2022 89m away

    REVISED SPECIFICATION:T1. A Beech tree approximately 10m in height, situated in a central location on the front boundary with Alleyn Road. Low branches to be lifted to provide a clearance of 3m from ground level including the removal of dead wood. T2. A Cherry tree approximately 6m in height, situated in the front left-hand corner adjacent to Alleyn Road. Remove one dead branch over the driveway and necessary re-shaping. The height and basic shape should be retained.T3. A Rowan tree approximately 7.5m in height, situated on the right-hand side boundary of the rear garden close to a Yew tree. Remove by felling at ground level. Plant replacement tree as recommended by the Dulwich Estate. T4. Two purple Plum trees approximately 10m in height, situated close together near the bottom of the rear garden. Crown thin by 20% including the removal of dead wood and water shoots. The height and basic shape should be retained. T5. A Cypress tree approximately 12m in height, situated in the bottom left-hand corner of the rear garden. Reduce in height by up to 2m.

    Granted Trees 9 docs

In Southwark

  • 26/AP/1316 Granted

    Seavington House Champion Hill London Southwark SE5 8DN

    Certificate of lawfulness (proposed) to confirm excavation works carried out on the site in the form of trial pits constitute a material operation under the Town and Country Planning Act 1990 and therefore represent lawful commencement of the approved planning permission 22/AP/0174.

    7 May 2026 Lawful development
  • 26/AP/1420 Granted

    40 Strathnairn Street London Southwark SE1 5BL

    Certificate of lawfulness (proposed) for construction of a ground floor rear extension and a rear dormer.

    18 May 2026 Lawful development
  • 26/AP/1618 Granted

    252 Barry Road London Southwark SE22 0JS

    Certificate of lawful development (proposed) for the construction of a rear dormer extension.

    5 Jun 2026 Lawful development
  • 26/AP/1577 Granted

    Residence Inn By Marriott London Bridge 201-211 Long Lane London SE1 4PN

    Certificate of lawfulness (proposed) for undertaking of facade remedial works to remove combustible cladding materials and replace with a like-for-like non-combustible cladding with no change to the outer aesthetics of the building.

    2 Jun 2026 Lawful development
  • 26/AP/1509 Withdrawn

    Railway Arch 101 Rockingham Street London Southwark SE1 6PD

    Certificate of lawfulness (proposed) for confirmation of implementation of planning permission 22/AP/3065: Change of use of the railway arch at 101 Rockingham Street from Use Class B8 (Storage/Distribution) to Use Classes E (Commercial, Business and Service) and F2 (Local Community) and a new glazed facade to the exterior including 2x extractor fans.

    27 May 2026 Lawful development