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14 Merttins Road London Southwark SE15 3EB

26/AP/0102Certificate of Lawful Dev. - ProposedApproved
Outline / PiP

Approved on 17 February 2026

Council decision: Certificate of Lawfulness Prop- GRANTEDDelegated (officer decision)

Site boundary (council red line)

Proposal

Lawful Development Certificate (Proposed) for construction of L-shape dormer roof extension and rooflight to the front

Received
14 January 2026
Decision level
Delegated (officer decision)
Ward
Peckham Rye
Agent
Studio E17
  1. Received14 Jan
  2. Validated15 Jan
  3. Consult.9 Feb
  4. Target11 Mar
  5. Decided17 Feb

Decided in 33 days (council typically 49)

About this application

This is an outline application for a dormer extension at 14 Merttins Road London Southwark SE15 3EB. Southwark has handled 202 applications of this type. This one was decided in 34 days, 2 weeks quicker than Southwark's typical decision time. There are no previous applications recorded at this address. In the past year there have been 73 applications across Peckham Rye. We hold 1,344 applications in total for the SE15 postcode area.

94% of outline applications at London Borough of Southwark were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
SE15 3EB
Application type
Certificate of Lawful Dev. - Proposed
Scale / size
Small
Parish
Peckham And Nunhead

Planning application dates

Date validated
15 January 2026
Last date for comments
9 February 2026
Target decision date
11 March 2026
Permission expires
17 February 2031

Applicant and agent

Agent
Studio E17
Agent address
140 Normanshire Drive London E4 9HD United Kingdom

Planning decision

Statutory period
55 days

Additional information

Comments
0
Documents
11

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Brownfield land register: 41 Athenlay Road SE15 3EARegister site at or near this address · +1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation areas, listed buildings, Article 4 directions, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and heritage coasts.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Southwark

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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