Rose Cottage Kentish Lane Hatfield AL9 6JP
Refused on 15 May 2026
Delegated (officer decision)4 reasons for refusal
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Replacement of an outbuilding (retrospective)
- Received
- 30 December 2025
- Decision level
- Delegated (officer decision)
- Ward
- Brookmans Park & Little Heath
- ReceivedReceived30 Dec
- ValidatedValidated17 Feb
- Consult.Consultation18 Mar
- TargetTarget Date
- DecidedDecided15 May
Decided in 87 days (council typically 56)
About this application
This is a full planning application for an outbuilding at Rose Cottage Kentish Lane Hatfield AL9 6JP. Welwyn Hatfield has handled 2,195 applications of this type. This one was decided in 136 days, 11 weeks longer than Welwyn Hatfield's typical decision time. The site is in 1 listed building nearby. There are no previous applications recorded at this address. In the past year there have been 79 applications across Brookmans Park & Little Heath. We hold 277 applications in total for the AL9 postcode area.
83% of full applications at Welwyn Hatfield Borough Council were approved. Across all application types, the council typically decides in about 8 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Why it was refused
- The proposal would be inappropriate development in the Green Belt and would fail to preserve the openness of the Green Belt. Very special circumstances do not exist to justify this harm to the Green Belt. Consequently, the proposal would conflict with Policy SADM34 of the Welwyn Hatfield Borough Council Local Plan and the National Planning Policy Framework.
- by reason of its height, position and roof form, the proposed development would be an oppressive and overbearing structure from the garden of Cherry Tree Cottage and would create overshadowing. In combination, these impacts are unacceptably harmful to the amenity of Cherry Tree Cottage and the reasonable enjoyment of its garden. Accordingly, the proposal would result in a poor standard of residential amenity and would be contrary to Policy SADM11 of the Welwyn Hatfield Council Local Plan 2016- 2036 (Adopted October 2023), the Supplementary Design Guidance 2005 and the National Planning Policy Framework.
- The proposed structure, by reason of its height and form, fails to be subservient in scale to the parent building. The proposal would therefore fail to complement and reflect the design and character of the existing dwelling, contrary to the Welwyn Hatfield Supplementary Design Guidance 2005, Policies SP1 and SP9 of the Welwyn Hatfield Borough Local Plan and the National Planning Policy Framework.
- Plan Revision Details Received Date Number Number D022- B Unit Elevations 8 January 2026 DWG-1200 D022- C Proposed 6m x 12m Unit 20 February 2026 DWG-0300 General Arrangement D022- F Site Layout 22 April 2026 DWG-0100 Location Plan 22 April 2026 Matt Wilson Assistant Director (Planning) Town and Country Planning Act 1990
From the council's decision notice.
Application details
- Postcode
- AL9 6JP
- Application type
- HOUSEHOLDER APPLICATION
- Parish
- Hatfield
Planning application dates
- Date validated
- 17 February 2026
- Consultation expiry
- 18 March 2026
- Consultation end
- 18 March 2026
Applicant and agent
- Agent address
- 3rd Floor 86-90 Paul Street London EC2A 4NE
Planning decision
- Case officer
- Mr James Kenyon
Publicity
- Site notice end
- 18 March 2026
Appeal history
Additional information
- UPRN
- 100081147805
Site constraints
Designations that overlap or adjoin the site outline.
- Green belt: Welwyn Hatfield
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions and tree preservation orders. Ask the council if these matter.
Also checked, none recorded (21)
flood storage areas, conservation areas, listed buildings, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Source: Welwyn Hatfield
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Planning something similar?
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