143 Boundary Lane Welwyn Garden City AL7 4EQ
Approved on 24 December 2025
Council decision: GrantedDelegated (officer decision)7 conditions
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
Erection of single storey side extension, part single storey rear and two storey rear extension, construction of new bay window following demolition of conservatory and garage
- Received
- 23 October 2025
- Decision level
- Delegated (officer decision)
- Ward
- Hollybush
- ReceivedReceived23 Oct
- ValidatedValidated30 Oct
- Consult.Consultation25 Nov
- TargetTarget Date
- DecidedDecided24 Dec
Decided in 55 days
About this application
This is a planning application for demolition at 143 Boundary Lane Welwyn Garden City AL7 4EQ. Welwyn Hatfield has handled 5,394 applications of this type. This one was decided in 62 days, 6 days longer than Welwyn Hatfield's typical decision time. There are no previous applications recorded at this address. In the past year there have been 19 applications across Hollybush. We hold 714 applications in total for the AL7 postcode area.
Application details
- Postcode
- AL7 4EQ
- Application type
- ESTATE MANAGEMENT
Planning application dates
- Date validated
- 30 October 2025
- Consultation expiry
- 25 November 2025
- Consultation end
- 25 November 2025
Applicant and agent
- Agent address
- Office 3 Broadmeads Pumping Station Hertford Road Ware SG12 9LH
Additional information
- UPRN
- 100080972259
Site constraints
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
Track this application
Get email alerts when there is a planning decision or status change.
Get email alerts near AL7
New planning applications delivered to your inbox daily.
Around this site
Nearby applications
- 137 Boundary Lane Welwyn Garden City AL7 4EQ6/2025/2002/EMApproved0.0 mi
- 10 Drycroft Welwyn Garden City AL7 4DH6/2024/1157/EMApproved0.1 mi
- 170 Boundary Lane, Welwyn Garden City, AL7 4DF6/2026/0959/EMT · TreesApproved0.1 mi
- 120 Boundary Lane Welwyn Garden City AL7 4DL6/2024/1892/HOUSE · FullApproved0.1 mi
- 189 Boundary Lane Welwyn Garden City AL7 4EJ6/2023/0623/EMH · FullApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Njg Building Solutions LtdWelwyn Garden City0.1 mi
- AA ElectriciansElectrician0.3 mi
- FLY JOINERY LtdWindow & Door Installer0.4 mi
- Barnet Window Company LtdWindow & Door Installer0.4 mi
Planning something similar?
See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.