73 Dellsome Lane Welham Green Hatfield AL9 7NE Data via plota.co.uk
Proposal
Erection of two storey side extension, part single and part two storey rear extensions and front porch following the demolition of existing side garage Data via plota.co.uk
Application progress
Approved on 8 Dec 2025 · Delegated · Last checked 17 Oct 2026
Documents 13
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 5
Consultation & comments 2
Associated applications 2
- Erection of two storey side extension, part single and part two storey rear extensions and front porch following the demolition…
Conditions details submitted for 1
Site constraints 3
Checked on 16 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.
Sales history 3
Last sold for £505,000 in November 2025. 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 June 2025, the latest held for this property. The building may have changed since. View the certificate
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Important details
- Council
- Welwyn Hatfield
- Application type
- HOUSEHOLDER APPLICATION
- Postcode
- AL9 7NE
- Received
- 9 Sept 2025
- Validated
- 9 Sept 2025
- Parish
- North Mymms
- Case officer
- Show
- Decision
- Granted
- Decision date
- 8 Dec 2025
- Decision level
- Delegated
- Applicant
- Show
- Agent
- Show
How this decision compares
Decided in 90 days from validation, 34 days slower than Welwyn Hatfield's median of 56 for householder applications. Approved, as 86% of householder applications here are.
Plota live figures for householder applications decided by Welwyn Hatfield in the last twelve months, from validation. Welwyn Hatfield decision record →
Public comments
5 neighbours consulted · Last counted 17 Oct 2026
Consultation & key dates
- Comments by
- 27 Nov 2025
Historical activity at this location
15 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Welwyn Hatfield is slower than most councils at deciding householder applications, ranking #224 out of 296. 50% of applications have the time limit extended, above the 41% national average. Householder applications are slightly less likely to be approved here (86%) 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.
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73 Dellsome Lane Welham Green Hatfield AL9 7NE
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