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The Bungalow Wandle Bank Beddington CR0 4SN

DM2026/00763Refused

Refused on 21 September 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

Change of use from Class C4 (Small HMO) to Sui Generis (Large HMO) to provide 8 rooms involving the erection of a single storey side extension and provision of refuse and cycle stores to the sides. Alterations to the fenestrations of the outbuilding.

Submitted
27 July 2026
  1. Received27 Jul
  2. Validated
  3. Consult.
  4. Target
  5. Decided21 Sep

Decided in 56 days

About this application

This is a planning application for a single storey side extension at The Bungalow Wandle Bank Beddington CR0 4SN. Sutton has handled 3,881 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. We hold 5,292 applications in total for the CR0 postcode area.

Why it was refused

  1. The proposed development, by virtue of the siting of the refuse store within 8 metres of the River Wandle and fundamental inconsistencies in the submitted plans regarding the physical footprint of the extension, fails to adequately safeguard the main river corridor. The proposal would restrict essential maintenance, flood management, and emergency access to the watercourse, and fails to robustly demonstrate that it would not unacceptably increase flood risk. The proposal is therefore contrary to Policy 32 of the Sutton Local Plan (2018), Policies SI 12 and SI 13 of the London Plan (2021), and Chapter 18 of the National Planning Policy Framework (2026).
  2. The application fails to provide a statutory Biodiversity Metric calculation or a comprehensive Biodiversity Gain Plan. In the absence of this quantitative assessment, it has not been demonstrated that the development, which exceeds the de minimis exemption threshold, would prevent a net loss of biodiversity or achieve the statutorily mandated 10% biodiversity net gain. The proposal is therefore contrary to the requirements of the Environment Act 2021, Policy 26 of the Sutton Local Plan (2018), Policy G6 of the London Plan (2021), and Policy N2 of the National Planning Policy Framework (2026).

From the council's decision notice.

Application details

Postcode
CR0 4SN

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Beddington Village
  • 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 (21)

flood storage 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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