3A Marchmont Road Wallington SM6 9NT Data via plota.co.uk
Proposal
Erection of a single storey side extension. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicted a decision soon after comments close on 27 Oct 2026; it is now day 63.
Documents 7
Plans & drawings 5
Application forms 1
Other documents 1
Site constraints 4
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI), Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 2
Last sold for £599,950 in August 2019. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in March 2019, the latest held for this property. The building may have changed since. View the certificate
Every application in Sutton - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
Decision outlook
Day 63, past the statutory target. 97% of extensions in Sutton are decided within thirteen weeks, which runs to 26 Nov 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 28 Oct 2026.
Plota live figures for extensions decided by Sutton in the last twelve months, from validation. Sutton decision record →
Public comments
No public comments yet.
Last counted 28 Oct 2026
Consultation & key dates
- Comments by
- 27 Oct 2026
- Statutory expiry
- 22 Oct 2026
- Env. assessment
- No
Historical activity at this location
21 nearby applications on record - archival context, not part of the live application.
Nearby activity
Sutton is one of the fastest councils in England for householder decisions, ranking #14 out of 296. Only 13% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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3A Marchmont Road Wallington SM6 9NT
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The consultation period closed on 27 Oct 2026.