Planning application
74 Thurlow Hill London Lambeth SE21 8JN
Works: Extension Loft or dormer
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Application for a Certificate of Lawful Certificate (Proposed) for the erection of a hip-to-gable rear dormer extension including the installation of two roof lights to the front.
As published by the council, reference 25/04002/LDCP
Application record
- Reference
- 25/04002/LDCP
- Type
- Certificate of Lawful Use proposed
- Status
- Decided
- Decision
- Grant Permission
- Received
- 23 Dec 2025
- Validated
- 23 Dec 2025
- Decided
- 13 Feb 2026
- Ward
- West Dulwich
- Decision by
- Delegated Decision
- Postcode
- SE21 8JN
Timeline
Dates from the published record
-
23 Dec 2025
Received by Lambeth
-
13 Feb 2026
Decision issued: Grant Permission
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
10 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.
Trade members open them from here.
Open the documentsWhat 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.
Nearby applications
Within 500 metres
-
74 Thurlow Hill London Lambeth SE21 8JN
Erection of a first floor side extension, and alteration to the ground floor front elevation comprising removal of an existing door and window and installation of a replacement window.
Refused Full applications Extension Windows or glazing 20 docs -
74 Thurlow Hill London Lambeth SE21 8JN
Erection of a ground floor rear extension, together with a two storey side and rear extension.
Refused Full applications Extension 11 docs -
74 Thurlow Hill London Lambeth SE21 8JN
Erection of a ground floor single storey rear extension, and excavation of basement to create a basement level, together with front and rear lightwells. Altertaions to the side extension.
Refused Full applications Extension 14 docsSmall domestic -
66 Thurlow Hill London SE21 8JN
Application for a Certificate of Lawful Development (Proposed) with respect to the erection of a single storey ground floor rear and side infill extension. Erection of a dormer to the existing rear addition and a rear dormer roof extension with the installation of three front rooflights.
Refused Lawful development Extension Loft or dormer 13 docsSmall domestic -
82 Thurlow Hill London Lambeth SE21 8JN
Application for prior approval for the erection of a single storey rear extension with dimensions of 6.0m (length), 3.0m (total maximum height) and 3.0m (height to the eaves)
Refused Prior approval Extension 8 docsSmall domestic -
82 Thurlow Hill London SE21 8JN
Erection of a single storey ground floor rear extension.
Granted Full applications Extension 14 docsSmall domestic
Other lawful development applications
In Lambeth
-
26/01447/LDCP Granted
2 Stannary Street London SE11 4AA
Application for a Certificate of Lawful Development (Proposed) with respect to remedial works to fix selected sliding glazed door panels shut and associated alterations to the existing glazing system within the existing curtain wall openings of the penthouse flat.
-
26/01071/LDCP Withdrawn
36 Elms Road London Lambeth SW4 9EX
Certificate of Lawful Development (Proposed) with respect to the erection of side and rear 'box' roof extensions including a side roof light and removal of a chimney.
-
26/00455/LDCP Granted
129 Hydethorpe Road London SW12 0JF
Application for Certificate of Lawful Development (Proposed) with respect to the erection of a rear dormer roof extension and installation of new rooflights to the front roof slope.
-
26/01485/LDCP Granted
88 Ballater Road London SW2 5QP
Application for a Certificate of Lawful Development (Proposed) with respect to erection of a rear dormer roof extension and installation of 2 x rooflights to existing roof at front elevation and 1 x rooflight to existing rear outrigger roof
-
26/01478/LDCP Refused
142 Rosendale Road London SE21 8LG
Certificate of Lawful Development (Proposed) with respect to the deconversion of existing three self-contained flats into one single dwellinghouse.