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4 The Chase Welwyn AL6 0QT

6/2025/2256/HOUSEHOUSEHOLDER APPLICATIONRefused
Householder

Refused on 20 January 2026

Delegated (officer decision)3 reasons for refusal

Approximate site (title boundary)
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

Reduction in height of the existing retaining boundary wall and alteration to and extending the garden boundary fencing.

Received
23 October 2025
Decision level
Delegated (officer decision)
Ward
Welwyn East
  1. Received23 Oct
  2. Validated23 Oct
  3. Consult.3 Dec
  4. Target
  5. Decided20 Jan

Decided in 89 days (council typically 56)

About this application

This is a full planning application at 4 The Chase Welwyn AL6 0QT. Welwyn Hatfield has handled 2,195 applications of this type. This one was decided in 89 days, 5 weeks longer than Welwyn Hatfield's typical decision time. The site is in 1 listed building nearby. There has been 1 other application at this address. In the past year there have been 105 applications across Welwyn East. We hold 969 applications in total for the AL6 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

  1. The proposed development, by reason of its prominent roadside location, size, scale and length, remains an over dominant and visually intrusive form of development, which would be detrimental to the character and appearance of the area. Accordingly, the proposal represents a poor standard of design and would be contrary to Policies SP1 and SP9 of the Welwyn Hatfield Borough Council Local Plan 2016-2036 (Adopted October 2023), the Supplementary Design Guidance (2005) and the National Planning Policy Framework.
  2. The proposed development would increase actual and perceived levels of overlooking from the rear of the application site which would consequently result in a reduction in privacy for neighbouring properties. In addition, the overall height and scale of the retaining wall and fencing would appear overbearing and oppressive for neighbouring dwellings and members of the public/residents walking and driving along The Chase. 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.
  3. Plan Number Revision Number Details Received Date WR-110 A Location and Site 23 October 2025 WR-111 Existing Garden 23 October 2025 WR-112 Existing and 23 October 2025 1.

From the council's decision notice.

Application details

Postcode
AL6 0QT
Application type
HOUSEHOLDER APPLICATION
Parish
Welwyn

Planning application dates

Date validated
23 October 2025
Consultation expiry
3 December 2025
Consultation end
3 December 2025

Applicant and agent

Agent address
Unit s13 Business & Tech Center Stevenage Hertfordshire sg1 2dx

Additional information

UPRN
100080990440

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • 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 (22)

flood storage areas, conservation areas, listed buildings, green belt, 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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