1 Abbey Avenue St Albans Hertfordshire AL3 4BJ Data via plota.co.uk
Proposal
Proposed two-storey rear extension and part single-storey rear extension. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision between 13 Nov 2026 and 3 Dec 2026, from St Albans's recent extensions.
Site constraints 2
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) 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 October 2025, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate
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Important details
Decision outlook
Day 54 of the 56-day target. St Albans usually decides extensions by day 77.
Plota live figures for extensions decided by St Albans in the last twelve months, from validation. St Albans decision record →
Public comments
No public comments yet.
7 neighbours consulted · Last counted 26 Oct 2026
Consultation & key dates
- Alt. reference
- 323611PLN
- Planning Portal ref
- 15195480
- Neighbours
- 25 Sept 2026
- Consultation
- 25 Sept 2026
- Comments by
- 12 Nov 2026
- Site or press notice
- 1 Oct 2026
- Statutory expiry
- 29 Oct 2026
- Env. assessment
- No
Historical activity at this location
2 nearby applications on record - archival context, not part of the live application.
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%).
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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1 Abbey Avenue St Albans Hertfordshire AL3 4BJ
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Comments are open until 12 Nov 2026