21 Milestone Road Knebworth Hertfordshire SG3 6DA
Proposal
Two storey side extension following demolition of existing detached shed and provision of one additional parking space.
- Received
- 22 October 2026
- Public comments
- 0 · last counted 14 November 2026
- ReceivedReceived22 Oct
- ValidatedValidated22 Oct
- Consult.Consultation9 Dec
- TargetTarget Date
- DecidedDecided
About this application
This is a planning application for demolition at 21 Milestone Road Knebworth Hertfordshire SG3 6DA. North Hertfordshire has handled 6,871 applications of this type. It has been with the council since 22 October 2026 and is still awaiting a decision. There are no previous applications recorded at this address. We hold 149 applications in total for the SG3 postcode area.
Application details
- Postcode
- SG3 6DA
Planning application dates
- Date validated
- 22 October 2026
- Consultation end
- 9 December 2026
Site constraints
Designations at the address point. Ones next to the site may also apply.
- 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 (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: North Hertfordshire
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For applicants and trades
Contractors near this project
Find contractors for extensions near this site- MH Goldsmith & Sons LtdElectrician0.1 mi
- DC Electrix LtdElectrician0.2 mi
- Robinz LtdElectrician0.3 mi
- Avelex Electrical LtdElectrician0.3 mi
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