Planning application
26/01067/LDCP
15 Thornton Road London Lambeth SW12 0JX
Proposal
Application for a Certificate of Lawful Development (Proposed) with respect to the erection of a rear roof extension, incorporating a juliet balcony with the addition of three roof lights to the front roof slope and a side obscured window.
As published by the council, reference 26/01067/LDCP
Timeline
Dates from the published record
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2 Apr 2026
Received by Lambeth
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21 May 2026
Decision issued: Grant Permission
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25 Jul 2026
Added to PlanIndex
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.
Nearby applications
Within 500 metres
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26/01230/LDCP Awaiting decision
47 Thornton Road London Lambeth SW12 0JX
Application for a Certificate of Lawful Certificate (Proposed) for the erection of a rear dormer roof extension and installation of two Rooflights on the Front Roof.
-
16/04924/FUL Granted
109 Atkins Road London SW12 0AL
Erection of a single storey ground floor rear extension and the blocking up of existing windows on the side elevation (Retrospective).
-
22/03321/FUL Refused
129 Clarence Avenue London Lambeth SW4 8LX
DeDemolition of existing garage and erection of new 2 storey side and rear extension.
-
21/00892/FUL Granted
17 Radbourne Road London SW12 0EA
Erection of a rear roof terrace
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21/01827/NMC Refused
3 Parkthorne Road London SW12 0JN
Application for a non-material amendment following a grant of planning permission ref: 19/02286/FUL (Erection of single storey ground floor front extension and single storey first floor side extension.) Granted on: 21.08.2019
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26/01610/S106D Awaiting decision
Land At No. 200-262 Hydethorpe Road And Bound By Thornton Road London SW12
Submission of details to discharge Schedule 7, Part 2, para 6.1 (Affordable Housing Review - Late) of the Section 106 Agreement dated 18.05.2021 associated with planning application ref: 20/01264/RG3 (Construction of a part 4, part 5 storey building comprising 14 residential units, associated cycle parking, landscaping together with associated works. granted on 23.07.2020.
Other lawful development applications
In Lambeth
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26/02152/LDCP Awaiting decision
111 Hydethorpe Road London SW12 0JF
Demolition of existing shed and erection of one single storey outbuilding in the rear garden
-
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.
-
26/01557/LDCP Granted
6 Perran Road London SW2 3DL
Application for a Certificate of Lawfulness (Proposed) with respect to the change of use of the property from dwelling house (Use Class C3) to small house in multiple occupation (HMO) (Use Class C4).
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26/01500/LDCP Granted
126 Gipsy Road London SE27 9RE
Application for a Certificate of Lawful Development (Proposed) with respect to erection of an L-shaped rear dormer roof extension and installation of 3 front roof lights.
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26/01999/LDCE Awaiting decision
60 Brixton Road London SW9 6BS
Application for a Certificate of Lawful Development (Existing) with respect to the continued existence of an elevated decking platform supported by adjoining walls above the roof terrace, together with safety railings to the outer edge, at Flat 2, 60 Brixton Road. Wooden decking replaced with composite decking as like for like maintenance. The submitted evidence details that the structure has been in place unchanged for 16 years.