137 - 145 High Street Sutton SM1 1JH Data via plota.co.uk
Proposal
Provision or rear external fire escape staircase, removal of external north flank staircase, replacement of plant machinery to roof, installation of additional plant machinery and ladders to roof, replacement windows to all fenestrations together with alterations to first floor rear fenestration, installation of a light above the front entrance alcove, installation of ventilation grills to first, second, third and fourth floor west fenestration, alterations to the internal basement layout and alterations to the first, second, third and fourth floor office spaces internal layouts. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 25 Nov 2026, from Sutton's recent extensions.
Documents 35
Statements & assessments 4
Plans & drawings 30
Application forms 1
Site constraints 9
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.
Building
From the energy performance certificate lodged in February 2021, the latest held for this property. The building may have changed since. View the certificate
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Important details
Decision outlook
Day 8 of the 56-day target. Sutton usually decides extensions by day 55.
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 6 Oct 2026
Consultation & key dates
- Statutory expiry
- 26 Nov 2026
- Env. assessment
- No
Historical activity at this location
26 previous applications on record - archival context, not part of the live application.
Previous applications at this address
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%).
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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137 - 145 High Street Sutton SM1 1JH
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