Marlborough House 18 Upper Marlborough Road St Albans Hertfordshire AL1 3UT Data via plota.co.uk
Proposal
Class MA Prior Approval application for the change of use of existing commercial floorspace at ground floor level undercroft (Use Class E) to 9 residential units (Use Class C3) Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision between 20 Dec 2026 and 4 Jan 2027, from St Albans's recent changes of use.
Documents 11
Statements & assessments 7
Application forms 1
Consultation & comments 1
Site constraints 4
Checked on 1 November 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) 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 £7,900,000 in July 2021. 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 July 2026, the latest held for this property. The building may have changed since. View the certificate
Every application in St Albans - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
Decision outlook
Day 16 of the 56-day target. St Albans usually decides changes of use by day 55.
Plota live figures for changes of use decided by St Albans in the last twelve months, from validation. St Albans decision record →
Public comments
No public comments yet.
96 neighbours consulted · Last counted 7 Nov 2026
Consultation & key dates
- Alt. reference
- PP-15300593
- Planning Portal ref
- PP-15300593
- Neighbours
- 30 Oct 2026
- Consultation
- 30 Oct 2026
- Comments by
- 28 Nov 2026
- Site or press notice
- 5 Nov 2026
- Statutory expiry
- 21 Dec 2026
- Env. assessment
- No
Historical activity at this location
31 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
St Albans is one of the slowest councils in England for householder decisions, ranking #285 out of 296. The council extends the time limit on 64% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly less likely to be approved here (88%) 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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Marlborough House 18 Upper Marlborough Road St Albans Hertfordshire AL1 3UT
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Freehold owner, on paid plans
The company that owns the freehold, from HM Land Registry's register of company-owned property, with its status, business and the companies that control it from Companies House, is shown to Plota subscribers. Plans start at £49 a month.
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Comments are open until 28 Nov 2026