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15 Dalton Street London SE27 9HS

26/01906/FULRefused

Refused on 10 September 2026

Council decision: Refuse Permission1 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 side extension to provide a cycle store for both residential and commercial use; alterations to the access arrangement for the upper-floor flats, including the installation of a new external metal staircase and the creation of a new upper-level entrance doorway; installation of perforated metal panels to provide privacy screening. [Retrospective]

Received
26 June 2026
Public comments
0 · last counted 7 November 2026
  1. Received26 Jun
  2. Validated26 Jun
  3. Consult.10 Sep
  4. Target11 Sep
  5. Decided10 Sep

Decided in 76 days

About this application

This is a planning application for a side extension at 15 Dalton Street London SE27 9HS. Lambeth has handled 15,924 applications of this type. This one was decided in 76 days, 3 weeks longer than Lambeth's typical decision time. There has been 1 other application at this address. We hold 1,060 applications in total for the SE27 postcode area.

Why it was refused

  1. The development, by reason of its scale and siting would result in an overbearing and unneighbourly development, with unacceptable levels of overlooking and loss of privacy to neighbouring and future occupiers of the site. Furthermore, the associated landing would give rise to noise and disturbance and there is insufficient evidence that the proposed acoustic screen would mitigate the noise impacts. The proposal is therefore contrary to Policy Q2 of the Lambeth Local Plan (2021). London planning@lambeth.gov.uk SW2 9QQ

From the council's decision notice.

Application details

Postcode
SE27 9HS

Planning application dates

Date validated
26 June 2026
Consultation end
10 September 2026
Target decision date
11 September 2026

Additional information

Documents
8

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Modified Direction 3 - Town Centres
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation areas, listed buildings, 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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