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2, Ansell Grove, Carshalton, SM5 2BB

DM2026/00647Householder planning permissionRefused
Householder

Refused on 20 July 2026

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 first floor rear extension.

Submitted
27 May 2026
  1. Received27 May
  2. Validated
  3. Consult.
  4. Target
  5. Decided20 Jul

Decided in 54 days (council typically 56)

About this application

This is a planning application for a rear extension at 2, Ansell Grove, Carshalton, SM5 2BB. Sutton has handled 638 applications of this type. This one was decided in 54 days. The site is in a conservation area. There are no previous applications recorded at this address. In the past year there have been 22 applications across Hackbridge. We hold 645 applications in total for the SM5 postcode area.

91% of householder planning permission applications at London Borough of Sutton 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 first floor extension, when coupled with the ground floor and roof extensions to the rear of the property, would appear as an excessive development that is out of keeping with the host dwelling and surrounding area. The proposal would fail to respect the prevailing pattern of development, which is limited to modest ground floor extensions. The development would dominate the host building and result in an overdevelopment of this prominent site, creating an incongruous form of development that harms the openness of the site as viewed from the nearby junction and rear streetscene to the north of the site, and is out of keeping with the character of the surrounding area. As such, the proposal is contrary to Policy 28 of the Sutton Local Plan 2018 and the guidance in Supplementary Planning Documents SPD4 'Design of Residential Extensions' and SPD14 'Creating Locally Distinctive Places'.
  2. The proposed first floor rear extension due to its close proximity to the rear boundaries and gardens of No. 132 and No. 134 Culvers Avenue and position to the south of the rear gardens of these two properties, and without evidence to the contrary, would adversely affect the amenity of the occupiers of these properties in terms of loss of light to their rear gardens. As such, the proposal is contrary to Policy 29 of the Sutton Local Plan 2018.
  3. The proposed development, when combined with historic rear extensions, would result in an excessive cumulative two-storey extension that would constitute an excessive form of development in close proximity to the rear gardens of 132 and 134 Culvers Avenue. This would detrimentally affect the residential amenity of the occupiers of these adjoining properties, resulting in a loss of outlook from both their rear gardens and primary rear windows. The proposal is therefore contrary to Policy 29 of the Sutton Local Plan 2018.

From the council's decision notice.

Application details

Postcode
SM5 2BB
Application type
Householder planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 2: Medium probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, 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: Sutton

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

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