21 Danesbury Park Road Welwyn Hertfordshire AL6 9SH
Approved on 28 July 2026
Council decision: GrantedDelegated (officer decision)
Proposal
Two storey rear extension following removal of existing single storey rear elements
- Received
- 8 July 2026
- Decision level
- Delegated (officer decision)
- Ward
- Knebworth Ward
- ReceivedReceived8 Jul
- ValidatedValidated8 Jul
- Consult.Consultation
- TargetTarget Date2 Sep
- DecidedDecided28 Jul
Decided in 20 days (council typically 49)
About this application
This is an outline application for a two storey rear extension at 21 Danesbury Park Road Welwyn Hertfordshire AL6 9SH. North Hertfordshire has handled 456 applications of this type. This one was decided in 20 days, 4 weeks quicker than North Hertfordshire's typical decision time. There have been 5 other applications at this address. In the past year there have been 90 applications across Knebworth Ward. We hold 969 applications in total for the AL6 postcode area.
86% of outline 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
- AL6 9SH
- Application type
- Lawful Development Certificate Proposed
- Scale / size
- Small
- Parish
- Codicote Parish Council
Planning application dates
- Date validated
- 8 July 2026
- Target decision date
- 2 September 2026
Applicant and agent
- Agent
- Mrs Lisa Dias
- Agent address
- The Lodge Studio Copthorne Road Croxley Green Rickmansworth WD3 4AQ
Planning decision
- Statutory period
- 56 days
Site constraints
Designations at the address point. Ones next to the site may also apply.
- Green belt: North Hertfordshire
- 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, conservation 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
5 other applications at this property, newest first.
- 20265 May
Two storey rear extension following demolition of existing rear elements.
RefusedLawful Development Certificate Proposed26/01038/LDCP - 202418 Dec
Details reserved by Condition 5 (Landscaping) of planning permission reference 23/02207/FP
ApprovedDischarge of conditions24/02869/DOC - 202418 Dec
Details reserved by Condition 7 (Environmental Risk Assessment) of planning permission reference 23/02207/FP
ApprovedDischarge of conditions24/02870/DOC - 202418 Dec
Details reserved by Condition 3 (Materials) of planning permission reference 23/02207/FP
ApprovedDischarge of conditions24/02808/DOC - 202327 Sep
Erection of one 4-bed dwelling and associated parking following demolition of existing dwellinghouse (as…
ApprovedFull Planning Permission23/02207/FP
Source: North Hertfordshire
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Around this site
Nearby applications
- Land To The South East Of Long Barns Danesbury Park Road Welwyn Hertfordshire AL6 9SH22/00273/PIP · OutlineRefused0.0 mi
- Old Orchard Danesbury Park Road Welwyn Hertfordshire AL6 9SH22/00480/FP · FullApproved0.1 mi
- Land At The Rear Of 25 Danesbury Park Road Welwyn Hertfordshire AL6 9SH26/01131/PIP · OutlineApproved0.1 mi
- Land To The Rear Of 25 Danesbury Park Road Welwyn Herts AL6 9SH26/00014/PIP · OutlineApproved0.1 mi
- Land Adjacent 21 Danesbury Park Road Pottersheath Hertfordshire AL6 9SH26/00115/FP · FullAwaiting decision0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Space Heating Limited0.2 mi
- Kinectid LtdPlumber & Heating EngineerSolar Panel Installer0.3 mi
- First Call Electrical LtdCommercial & industrial electrical installationsFire Detection and Alarm Systems0.4 mi
- Paul O'Rourke ElectricianElectrician0.5 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.