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Planning application

55 Hollingbourne Road London Southwark SE24 9NB

Granted Southwark 23/AP/2210 Certificate of Lawful Dev. - Proposed

Works: Extension Loft or dormer

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

Proposal

Rear dormer extension over main roof slope and over outrigger.

As published by the council, reference 23/AP/2210

Application record

Reference
23/AP/2210
Type
Certificate of Lawful Dev. - Proposed
Status
Granted
Decision
Certificate of Lawfulness Prop- GRANTED
Received
8 Aug 2023
Validated
9 Aug 2023
Decided
3 Oct 2023
Ward
Dulwich Village
Parish
Dulwich
Decision by
Delegated Panel - Simple
Postcode
SE24 9NB

Timeline

Dates from the published record

  1. 8 Aug 2023

    Received by Southwark

  2. 9 Aug 2023

    Validated

    Checked as complete and ready for consideration.

  3. 3 Oct 2023

    Decision issued: Certificate of Lawfulness Prop- GRANTED

  4. 26 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in London

43 applications on PlanIndex · across 6 councils · 90% granted

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Documents

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

15 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 a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 55 Hollingbourne Road London Southwark SE24 9NB

    23/AP/2632 Submitted 20 Sep 2023 0m away

    Construction of an L-shaped dormer extension at second-floor level over the existing rear roof planes, to provide additional residential accommodation. The works include raising the roof ridge by 330mm. Installation of Velux Cabrio Balcony window and rooflight to front roof slope.

    Granted Householder Extension Loft or dormer +1 23 docs
    Domestic
  • First Floor And Second Floor Flat 64 Hollingbourne Road London Southwark SE24 9ND

    25/AP/3791 Submitted 23 Dec 2025 37m away

    Construction of a rear external staircase and balcony, together with the formation of a doorway in the chamfered section of the first-floor outrigger wall

    Withdrawn Full applications Extension 16 docs
  • 41 Hollingbourne Road London Southwark SE24 9NB

    23/AP/2386 Submitted 23 Aug 2023 43m away

    Demolition of existing rear part of outrigger and construction of a single storey wrap around extension.

    Granted Householder Extension Demolition 13 docs
    Small domestic
  • 72 Holmdene Avenue London Southwark SE24 9LE

    23/AP/2399 Submitted 23 Aug 2023 46m away

    Construction of loft conversion with a mansard roof.

    Granted Householder Loft or dormer 21 docs
    Domestic
  • 88 Holmdene Avenue London Southwark SE24 9LE

    26/AP/2269 Submitted 30 Jul 2026 50m away

    95% historically approved · decision due ~24 Sep

    Side extension and replacement rear extension, replacement roof dormer, replacement of windows to front and rear, rooflights to the main roof, removal of a small single-pot chimney, and alterations to window openings in the side elevation.

    Awaiting decision Extension Loft or dormer +2
  • 4 Warmington Road London Southwark SE24 9LA

    25/AP/3279 Submitted 11 Nov 2025 69m away

    95% historically approved · decision due ~6 Jan

    Erection of a single-storey rear and side wrap-around extension and a loft conversion with roof dormer to the rear with two rooflights and two rooflights to the front roof slope.

    Awaiting decision Householder Extension Loft or dormer 13 docs
    Small domestic

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