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91 Railton Road London SE24 0LR

26/00919/FULRefused

Refused on 13 May 2026

1 reason for refusal

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Erection of a L shaped rear dormer including 3 roof lights to the front elevation (Flat B).

Submitted
23 March 2026
  1. Received23 Mar
  2. Validated23 Mar
  3. Consult.
  4. Target
  5. Decided13 May

Decided in 51 days

About this application

This is a planning application for a dormer extension at 91 Railton Road London SE24 0LR. Lambeth has handled 15,936 applications of this type. This one was decided in 51 days, 5 days quicker than Lambeth's typical decision time. There has been 1 other application at this address. We hold 1,062 applications in total for the SE24 postcode area.

Why it was refused

  1. The proposed L shaped rear dormer, by reason of its excessive scale, bulk and form extending across both rear roof slopes, would result in a visually intrusive and overly dominant addition that fails to remain subordinate to the host building. The development would erode the legibility of the original roof form and cause harm to the character and appearance of the host property and the surrounding roofscape. The proposal is thereby contrary to the Lambeth Design Guide (2023) and policies Q5 and Q11 of the Lambeth Local Plan (2021). London planning@lambeth.gov.uk SW2 9QQ

From the council's decision notice.

Application details

Postcode
SE24 0LR

Planning application dates

Date validated
23 March 2026

Applicant and agent

Architect profile
ARCHITEKTAS LTD

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (24)

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, heritage coasts and brownfield registers.

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: Lambeth

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

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