38 The Grove Brookmans Park AL9 7RN Data via plota.co.uk
Proposal
Erection of a two-storey rear and side extension with the creation of a crown roof and increased roof height, erection of a two-storey front gable extension, loft conversion incorporating three rooflights to the front and one to either side and the insertion of two dormers to the rear, erection of a pitched roof entrance porch with extended canopy, garage conversion, fenestration alterations, change to materials, erection of a larger patio area and erection of new steps to the rear, security gate/ fence to the side access, enlargement of existing driveway and the removal of both chimneys Data via plota.co.uk
Application progress
Approved on 30 Jul 2025 · Delegated · Last checked 20 Oct 2026
Documents 51
Decision & officer reports 2
Statements & assessments 1
Consultation & comments 2
Other documents 46
Associated applications 3
- Erection of a two-storey rear and side extension with the creation of a crown roof and increased roof height, erection…
Conditions details submitted for 2
Site constraints 4
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 £1,225,000 in December 2023. 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 February 2026, the latest held for this property. The building may have changed since. View the certificate
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Submission of details pursuant to Condition 1 (details of external render) and C...
38 The Grove Brookmans Park AL9 7RN
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Important details
- Council
- Welwyn Hatfield
- Application type
- HOUSEHOLDER APPLICATION
- Postcode
- AL9 7RN
- Received
- 18 Feb 2025
- Validated
- 7 Apr 2025
- Parish
- North Mymms
- Case officer
- Show
- Decision
- Granted
- Decision date
- 30 Jul 2025
- Decision level
- Delegated
- Applicant
- Show
- Agent
- Show
How this decision compares
Decided in 114 days from validation, 58 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 20 Oct 2026
Consultation & key dates
- Comments by
- 18 Jul 2025
Historical activity at this location
23 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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38 The Grove Brookmans Park AL9 7RN
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