27 The Grove Brookmans Park AL9 7RL Data via plota.co.uk
Proposal
Erection of a single storey front extension, pitched roof element and window to first floor front elevation and part single and two storey rear extension following the demolition of existing front and rear extensions. External walls finished in smooth render and alterations to fenestration. Data via plota.co.uk
Application progress
Approved on 19 Sept 2025 · Delegated · Last checked 19 Oct 2026
Documents 15
Decision & officer reports 2
Plans & drawings 8
Consultation & comments 2
Associated applications 2
Site constraints 3
Checked on 18 October 2026. 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 £1,350,000 in September 2025. 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 April 2025, the latest held for this property. The building may have changed since. View the certificate
Every application in Welwyn Hatfield - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Welwyn Hatfield
- Application type
- HOUSEHOLDER APPLICATION
- Postcode
- AL9 7RL
- Received
- 28 Jul 2025
- Validated
- 28 Jul 2025
- Parish
- North Mymms
- Case officer
- Show
- Decision
- Granted
- Decision date
- 19 Sept 2025
- Decision level
- Delegated
- Applicant
- Show
- Agent
- John Perrin
How this decision compares
Decided in 53 days from validation, about the council's usual 56 days. 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
8 neighbours consulted · Last counted 19 Oct 2026
Consultation & key dates
- Comments by
- 2 Sept 2025
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
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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27 The Grove Brookmans Park AL9 7RL
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