6 Deeping Close Knebworth Hertfordshire SG3 6BW
Approved on 4 March 2026
Council decision: Conditional PermissionDelegated (officer decision)3 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
First floor side extension above existing garage and part two storey side extension. Front porch extension and insertion of front ground floor window following removal of existing garage doors to facilitate garage conversion. Alterations to fenestration. Erection of detached garage.
- Received
- 26 January 2026
- Decision level
- Delegated (officer decision)
- Public comments
- 2
- Ward
- Knebworth Ward
- ReceivedReceived26 Jan
- ValidatedValidated26 Jan
- Consult.Consultation20 Feb
- TargetTarget Date23 Mar
- DecidedDecided4 Mar
Decided in 37 days (council typically 49)
About this application
This is a full planning application for a two storey side extension at 6 Deeping Close Knebworth Hertfordshire SG3 6BW. North Hertfordshire has handled 2,848 applications of this type. This one was decided in 37 days, 12 days quicker than North Hertfordshire's typical decision time. There are no previous applications recorded at this address. In the past year there have been 90 applications across Knebworth Ward. 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 6BW
- Application type
- Full Permission Householder
- Scale / size
- Small
- Parish
- Knebworth Parish Council
Planning application dates
- Date validated
- 26 January 2026
- Consultation expiry
- 27 February 2026
- Consultation end
- 20 February 2026
- Neighbour consultation end
- 27 February 2026
- Last date for comments
- 27 February 2026
- Target decision date
- 23 March 2026
- Permission expires
- 4 March 2029
Applicant and agent
- Agent
- Mr Stuart Cook
- Agent address
- Rear Of 62 Bridge Road East Welwyn Garden City AL7 1JU United Kingdom
Planning decision
- Case officer
- William Thompson
- Statutory period
- 56 days
Additional information
- Planning Portal ID
- PP-14623269
- Documents
- 9
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Stockens Green KnebworthNext to 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 (21)
flood storage 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: North Hertfordshire
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Around this site
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For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Robinz LtdElectrician0.1 mi
- Barnett Technical ServicesElectrician0.2 mi
- Avelex Electrical LtdElectrician0.2 mi
- MH Goldsmith & Sons LtdElectrician0.3 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.