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126, The Chase, Wallington, SM6 8JS

DM2026/00688Householder planning permissionRefused
Householder

Refused on 11 August 2026

2 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 outbuilding to provide annexed accommodation.

Submitted
16 June 2026
  1. Received16 Jun
  2. Validated
  3. Consult.
  4. Target
  5. Decided11 Aug

Decided in 56 days (council typically 56)

About this application

This is a planning application for an outbuilding at 126, The Chase, Wallington, SM6 8JS. Sutton has handled 638 applications of this type. This one was decided in 56 days. The site is in a conservation area. There has been 1 other application at this address. In the past year there have been 74 applications across Beddington. We hold 612 applications in total for the SM6 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 development would result in a non-ancillary accommodation as it would include all the day to day facilities within a large outbuilding which would benefit from an independent access via the residential pathway to the north of the site. There is insufficient evidence to demonstrate the proposed annexe would retain a strong functional link with the main dwellinghouse and would therefore constitute as a separate self-contained residential unit and would be contrary to Policies 7, 9, 13 and 28 of the Sutton Local Plan 2018.
  2. The proposed development, by reason of excessive scale, massing and footprint, would appear incongruous within the garden setting and at odds with the prevailing pattern of development. As a result, the annexe would fail to appear subordinate or relate well to the main dwelling, appearing overly dominant and being visually intrusive within the rear streetscene. As such, the proposal is contrary to Policy 28 of Sutton Local Plan 2018.

From the council's decision notice.

Application details

Postcode
SM6 8JS
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 1: Low 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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