21A Deards End Lane Knebworth Hertfordshire SG3 6NL
Approved on 16 August 2023
Council decision: Conditional PermissionDelegated (officer decision)
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
Single storey front and rear extensions. Detached hydro pool outbuilding. Alterations to external materials and openings
- Received
- 23 June 2023
- Decision level
- Delegated (officer decision)
- Public comments
- 2
- Ward
- Knebworth Ward Historic
- ReceivedReceived23 Jun
- ValidatedValidated23 Jun
- Consult.Consultation20 Jul
- TargetTarget Date18 Aug
- DecidedDecided16 Aug
Decided in 54 days (council typically 49)
About this application
This is a full planning application for an outbuilding at 21A Deards End Lane Knebworth Hertfordshire SG3 6NL. North Hertfordshire has handled 2,848 applications of this type. This one was decided in 54 days, 5 days longer than North Hertfordshire's typical decision time. The site is in the Deard's End Lane, Knebworth conservation area, with 1 listed building nearby. There are no previous applications recorded at this address. We hold 149 applications in total for the SG3 postcode area.
92% of full applications at North Hertfordshire District Council were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- SG3 6NL
- Application type
- Full Permission Householder
- Scale / size
- Small
- Parish
- Knebworth Parish Council
Planning application dates
- Date validated
- 23 June 2023
- Consultation expiry
- 29 July 2023
- Consultation end
- 20 July 2023
- Neighbour consultation end
- 27 July 2023
- Last date for comments
- 29 July 2023
- Target decision date
- 18 August 2023
- Permission expires
- 16 August 2026
Applicant and agent
- Agent
- Mr David Boden
- Agent address
- 11 Vernon Avenue Beeston Nottingham ng92NS United Kingdom
Planning decision
- Statutory period
- 56 days
Publicity
- Advertisement expiry
- 29 July 2023
- Site notice end
- 27 July 2023
Additional information
- Planning Portal ID
- PP-12244310
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Deard's End Lane, Knebworth
- Green belt: North HertfordshirePart of the site
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (20)
flood storage 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.
Planning history at this site
1 other application at this property, newest first.
Source: North Hertfordshire
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Around this site
Nearby applications
- 21a Deards End Lane Knebworth Hertfordshire SG3 6NL24/01664/FPH · FullApproved0.0 mi
- 17 Deards End Lane Knebworth Hertfordshire SG3 6NL23/02521/FPH · FullApproved0.1 mi
- 17 Deards End Lane Knebworth Hertfordshire SG3 6NL23/01603/TCA · TreesApproved0.1 mi
- 15 Deards End Lane Knebworth Hertfordshire SG3 6NL26/00055/FPH · FullApproved0.1 mi
- 15 Deards End Lane Knebworth Hertfordshire SG3 6NL25/03157/FPH · FullRefused0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- DC Electrix LtdElectrician0.3 mi
- MH Goldsmith & Sons LtdElectrician0.5 mi
- Avelex Electrical LtdElectrician0.5 mi
- Barnett Technical ServicesElectrician0.6 mi
Planning something similar?
See what the council approved and refused for single-storey rear extensions on your street. Pick your home and get the evidence before you pay for drawings.