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12 Prestwich Terrace Crescent Lane London SW4 9RH

25/03973/FULFull Planning PermissionRefused
Full

Refused on 16 February 2026

Council decision: Refuse PermissionDelegated (officer decision)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 side roof extension with a front window and the installation of a rear window at second floor level.

Received
22 December 2025
Decision level
Delegated (officer decision)
Ward
Clapham East
  1. Received22 Dec
  2. Validated22 Dec
  3. Consult.27 Jan
  4. Target16 Feb
  5. Decided16 Feb

Decided in 56 days (council typically 56)

About this application

This is a full planning application for an extension at 12 Prestwich Terrace Crescent Lane London SW4 9RH. Lambeth has handled 398 applications of this type. This one was decided in 56 days. There are no previous applications recorded at this address. In the past year there have been 93 applications across Clapham East. We hold 2,293 applications in total for the SW4 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 side roof extension by reason of its siting, design, excessive scale, form and bulk would result in an overly dominant and incongruous feature, detrimental to the architectural merits of the host property and existing terrace and would result in harm to the character and appearance of the host property and wider area. The inappropriate design and prominence are exacerbated when considered individually and together with the existing side roof extension. The proposals would therefore fail to achieve subordination which is a key London planning@lambeth.gov.uk SW2 9QQ consideration. Furthermore, the installation of a front window within the cheek of the existing side dormer extension unacceptably harm the fenestration arrangement of the host building. The proposals are thereby contrary to Policies Q2, Q5, Q8 and Q11 of the Lambeth Local Plan 2021 and the Lambeth Design Guide 2023.

From the council's decision notice.

Application details

Postcode
SW4 9RH
Application type
Full Planning Permission
Scale / size
Small

Planning application dates

Date validated
22 December 2025
Consultation expiry
27 January 2026
Consultation end
27 January 2026
Neighbour consultation end
27 January 2026
Target decision date
16 February 2026

Applicant and agent

Agent
The Plan Company
Agent address
4th Floor Silverstream House 45 Fitzroy St, London London W1T 6EB United Kingdom

Planning decision

Statutory period
56 days

Additional information

Comments
0
Documents
6
Constraints
1

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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