121 St Mary Street Southampton SO14 1PG Data via plota.co.uk
Proposal
Permitted Development Assessment - Prior Approval sought for an additional 1 storey to provide 1 x two bed flat Data via plota.co.uk
Application progress
Refused on 28 Sept 2026 · Delegated Decision · Last checked 28 Sept 2026
Documents 5
Decision & officer reports 2
Application forms 1
Site constraints 6
Show all 2 with distances
- 22 mSt Mary's HallGrade II
- 44 mLamp Standard in Centre of Paved Area at Western End of Bevois StreetGrade II
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate 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 1
Last sold for £220,000 in September 2025. Other property, 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 January 2025, the latest held for this property. The building may have changed since. View the certificate
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Important details
- Council
- Southampton
- Application type
- Part 20
- Postcode
- SO14 1PG
- Received
- 3 Aug 2026
- Validated
- 3 Aug 2026
- Ward
- Bargate
- Case officer
- Show
- Target decision
- 28 Sept 2026
- Decision
- Objection
- Decision date
- 28 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- RS Studio
- Freehold owner
- Show
How this decision compares
Decided in 56 days from validation, about the council's usual 57 days. Refused, as 14% of changes of use here are.
Plota live figures for changes of use decided by Southampton in the last twelve months, from validation. Southampton decision record →
Public comments
No public comments yet.
4 neighbours consulted · Last counted 28 Sept 2026
Consultation & key dates
- Alt. reference
- 8441
- Neighbours
- 5 Aug 2026
- Consultation
- 5 Aug 2026
- Comments by
- 26 Aug 2026
- Statutory expiry
- 28 Sept 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
Southampton ranks #158 out of 296 councils for householder decision speed. 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.
Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.
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121 St Mary Street Southampton SO14 1PG
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Freehold owner, on paid plans
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