12 Cottonmill Lane St Albans Hertfordshire AL1 1HN Data via plota.co.uk
Proposal
Discharge of Conditions 4 (Archaeological report) and 6(Construction Method Statement) of planning permission dated 28/10/2025 for Single storey side and front extension, part single, part two storey rear extension with roof light and alterat… Data via plota.co.uk
Application progress
Approved on 21 Aug 2026 · Delegated · Last checked 13 Oct 2026
Site constraints 6
Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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 £550,000 in June 2021. 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 October 2020, the latest held for this property, matched to this application by its address. 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
How this decision compares
Decided in 32 days from validation, 45 days faster than St Albans's median of 77 for extensions. Approved, as 85% of extensions here are.
Plota live figures for extensions decided by St Albans in the last twelve months, from validation. St Albans decision record →
Consultation & key dates
- Alt. reference
- 322862PLN
- Planning Portal ref
- 14775926
- Comments by
- 20 Aug 2026
- Statutory expiry
- 13 Sept 2026
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.
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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12 Cottonmill Lane St Albans Hertfordshire AL1 1HN
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Referenced application