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15 Dalton Street London SE27 9HS

25/03366/FULFull Planning PermissionRefused
Full

Refused on 22 December 2025

Council decision: Refuse PermissionDelegated (officer decision)3 reasons 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
27 October 2025
Decision level
Delegated (officer decision)
Public comments
1
Ward
West Dulwich
  1. Received27 Oct
  2. Validated27 Oct
  3. Consult.21 Nov
  4. Target22 Dec
  5. Decided22 Dec

Decided in 56 days (council typically 56)

About this application

This is a full planning application for a side extension at 15 Dalton Street London SE27 9HS. Lambeth has handled 398 applications of this type. This one was decided in 56 days. There has been 1 other application at this address. In the past year there have been 52 applications across West Dulwich. We hold 1,060 applications in total for the SE27 postcode area.

70% of full applications at London Borough of Lambeth were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Why it was refused

  1. The proposed external steps with associated landing and entrance door would result in unacceptable levels of overlooking and privacy concerns to two rooms at first floor level of the host building. In addition, the associated landing would give rise to noise and disturbance to neighbouring residential occupiers when in use and to the two rooms at first floor level of the host building. The proposal is therefore contrary to Policy Q2 of the Lambeth Local Plan (2021) London planning@lambeth.gov.uk SW2 9QQ
  2. The ground floor extension and proposed screening , by reason of scale and siting would result in an unacceptably increased sense of enclosure and loss of outlook to the ground floor windows of no 16. The proposal is therefore contrary to Policy Q2 of the Lambeth Local Plan (2021).
  3. Insufficient information has been provided so as to ascertain whether the living conditions of neighbouring occupiers and future occupiers of the host building would not be exposed to unacceptable levels of noise and disturbance. The proposal is therefore contrary to Policy Q2 of the Lambeth Local Plan (2021).

From the council's decision notice.

Application details

Postcode
SE27 9HS
Application type
Full Planning Permission
Scale / size
Small

Planning application dates

Date validated
27 October 2025
Consultation expiry
21 November 2025
Consultation end
21 November 2025
Neighbour consultation end
21 November 2025
Target decision date
22 December 2025

Applicant and agent

Agent
NGBARCHDESIGNERS
Agent address
Unit 2, 59 Anernely Road Bromley London SE19 2AS

Planning decision

Statutory period
56 days

Appeal history

6003904
Dismissed
Type: Planning AppealProcedure: Written RepresentationsDecision: 29 May 2026Dev Type: Other minor developmentsReason: refused

Additional information

Documents
7
Constraints
3

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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