Planning application
14 Merttins Road London Southwark SE15 3EB
Works: Extension Loft or dormer
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Lawful Development Certificate (Proposed) for construction of L-shape dormer roof extension and rooflight to the front
As published by the council, reference 26/AP/0102
Application record
- Reference
- 26/AP/0102
- Type
- Certificate of Lawful Dev. - Proposed
- Status
- Granted
- Decision
- Certificate of Lawfulness Prop- GRANTED
- Received
- 14 Jan 2026
- Validated
- 15 Jan 2026
- Decided
- 17 Feb 2026
- Ward
- Peckham Rye
- Parish
- Peckham And Nunhead
- Decision by
- Delegated Panel - Simple
- Postcode
- SE15 3EB
Timeline
Dates from the published record
-
14 Jan 2026
Received by Southwark
-
15 Jan 2026
Validated
Checked as complete and ready for consideration.
-
17 Feb 2026
Decision issued: Certificate of Lawfulness Prop- GRANTED
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, registered in Walthamstow
2 applications on PlanIndex · across 2 councils
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
11 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
-
10 Merttins Road London Southwark SE15 3EB
Certificate of lawfulness (proposed) for, raising the rear section of the building to align with the existing kitchen ceiling.
Granted Lawful development 13 docs -
2 Merttins Road London Southwark SE15 3EB
Raise ridge line by 500mm as to provide adequate height for the erection of a L-shaped dormer loft extension to the rear with the installation of 2no rooflights in front roof slope.
Granted Householder Extension Loft or dormer 13 docsDomestic -
37 Athenlay Road London Southwark SE15 3EA
Certificate of lawfulness (proposed) for a loft conversion with rear dormer extension.
Granted Lawful development Extension Loft or dormer 10 docs -
37 Athenlay Road London Southwark SE15 3EA
Construction of a rear dormer roof extension, involving raising the roof ridge, and installation of two roof lights on the front roof slope
Granted Householder Extension Loft or dormer 11 docsDomestic -
20 Homeleigh Road London Southwark SE15 3EE
95% historically approved · decision due ~19 Aug
Construction of an L-shape dormer loft conversion with 450mm ridge raise.
Awaiting decision Loft or dormer -
2 Homeleigh Road London Southwark SE15 3EE
Erection of single storey side extension following demolition of existing garage
Granted Householder Extension Demolition 12 docsSmall domestic
Other lawful development applications
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.
-
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.
-
26/AP/1618 Granted
252 Barry Road London Southwark SE22 0JS
Certificate of lawful development (proposed) for the construction of a rear dormer extension.
-
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.
-
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.