52 Napsbury Avenue London Colney Hertfordshire AL2 1LS Data via plota.co.uk
Proposal
Certificate of Lawfulness (proposed) - The proposed development comprises building operations associated with the loft conversion of the existing roof space to provide additional habitable accommodation. The works include the construction of a rear dormer… Data via plota.co.uk
Application progress
Approved on 10 Sept 2026 · Delegated · Last checked 15 Sept 2026
Site constraints 2
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 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 £165,500 in September 2003. Terraced 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 November 2015, 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
How this decision compares
Decided in 70 days from validation, 11 days faster than St Albans's median of 81 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
- 322547PLN
- Planning Portal ref
- 15053089
- Comments by
- 24 Jul 2026
- Statutory expiry
- 26 Aug 2026
Historical activity at this location
25 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%).
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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52 Napsbury Avenue London Colney Hertfordshire AL2 1LS
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