221 Icknield Way Letchworth Garden City Hertfordshire SG6 4TU
Approved on 15 April 2026
Council decision: Conditional ConsentDelegated (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
Replace existing bathroom window (proposed Bedroom 4) with new timber, clear, double-glazed window and remove external soil stack and pipework on northeast elevation. Internal alterations.
- Received
- 20 February 2026
- Decision level
- Delegated (officer decision)
- Ward
- Letchworth Norton Ward
- Agent
- Norton Studio Architects
- ReceivedReceived20 Feb
- ValidatedValidated20 Feb
- Consult.Consultation22 Mar
- TargetTarget Date17 Apr
- DecidedDecided15 Apr
Decided in 54 days (council typically 49)
About this application
This is a heritage application for window replacement at 221 Icknield Way Letchworth Garden City Hertfordshire SG6 4TU. North Hertfordshire has handled 345 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 Letchworth conservation area, with 3 listed buildings nearby. There have been 4 other applications at this address. In the past year there have been 102 applications across Letchworth Norton Ward. We hold 910 applications in total for the SG6 postcode area.
93% of heritage 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
- SG6 4TU
- Application type
- Listed Building Consent
- Scale / size
- Small
- Parish
- Letchworth Garden City
Planning application dates
- Date validated
- 20 February 2026
- Consultation expiry
- 29 March 2026
- Consultation end
- 22 March 2026
- Last date for comments
- 29 March 2026
- Target decision date
- 17 April 2026
- Permission expires
- 15 April 2029
Applicant and agent
- Agent
- Norton Studio Architects
- Agent address
- 5 Croft Lane Letchworth Garden City SG6 1AS
Planning decision
- Statutory period
- 56 days
Publicity
- Advertisement expiry
- 28 March 2026
- Site notice end
- 29 March 2026
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Letchworth
- 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, 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.
Associated applications
- 202615 May
Details reserved by Condition 3 (Joinery Section Details) for Listed Building Consent application 26/00483/LBC
ApprovedDischarge of conditions26/01277/DOC - 202620 Feb
Replace existing bathroom window (proposed Bedroom 4) with new timber, clear, double-glazed window and remove…
This applicationConditional ConsentListed building consent26/00483/LBC
Planning history at this site
3 other applications at this property, newest first.
- 202615 May
Details reserved by Condition 3 (Joinery Section Details) of Listed Building Consent application 25/02233/LBC
ApprovedDischarge of conditions26/01276/DOC - 202516 Sep
Two storey side/rear extension, raise existing roof ridge height of main dwelling and existing garage and…
ApprovedHouseholder25/02232/FPH - 202516 Sep
Two storey side/rear extension, raise existing roof ridge height of main dwelling and existing garage and…
Conditional ConsentListed building consent25/02233/LBC
Source: North Hertfordshire
Track this application
Get email alerts when there is a planning decision or status change.
Get email alerts near SG6
New planning applications delivered to your inbox daily.
Around this site
Nearby applications
- 221 Icknield Way Letchworth Garden City Hertfordshire SG6 4TU25/02232/FPH · FullApproved0.0 mi
- 221 Icknield Way Letchworth Garden City Hertfordshire SG6 4TU26/01276/DOC · ConditionsApproved0.0 mi
- 221 Icknield Way Letchworth Garden City Hertfordshire SG6 4TU25/02233/LBC · HeritageApproved0.0 mi
- 225 Icknield Way Letchworth Garden City Hertfordshire SG6 4TU25/00985/TCA · TreesApproved0.0 mi
- 10 The Quadrant Letchworth Garden City Hertfordshire SG6 4TY25/02668/FPH · FullApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for renovations & refurbishments near this site- Garden City Chimney ServicesSolid Fuel Heating0.1 mi
- First Garden Cities HomesRetrofit Assessor0.2 mi
- Dormakaba UK LimitedHardware and SealsDoor Closers0.2 mi
- Fortem Solutions LimitedExternal Wall Insulation0.2 mi
Planning something similar?
See what the council approved and refused for window and door replacements on your street. Pick your home and get the evidence before you pay for drawings.