21 Trevor Road Hitchin Hertfordshire SG4 9TA
Approved on 26 February 2026
Council decision: Conditional PermissionDelegated (officer decision)2 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 rear extension and single storey side/rear canopy structure. Insertion of 2 no. front rooflights to facilitate loft conversion. Installation of air source heat pump (ASHP) on side elevation and photovoltaic panels to existing rear roofslope. Alterations to fenestration and external material finish of existing rear element.
- Received
- 23 December 2025
- Decision level
- Delegated (officer decision)
- Public comments
- 4
- Ward
- Hitchin Bearton Ward
- ReceivedReceived23 Dec
- ValidatedValidated23 Dec
- Consult.Consultation30 Jan
- TargetTarget Date13 Mar
- DecidedDecided26 Feb
Decided in 65 days (council typically 49)
About this application
This is a full planning application for a loft conversion at 21 Trevor Road Hitchin Hertfordshire SG4 9TA. North Hertfordshire has handled 2,848 applications of this type. This one was decided in 65 days, 2 weeks longer than North Hertfordshire's typical decision time. The site is in the Hitchin conservation area. There has been 1 other application at this address. In the past year there have been 118 applications across Hitchin Bearton Ward. We hold 2,228 applications in total for the SG4 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
- SG4 9TA
- Application type
- Full Permission Householder
- Scale / size
- Medium
- Parish
- Hitchin
Planning application dates
- Date validated
- 23 December 2025
- Consultation expiry
- 7 February 2026
- Consultation end
- 30 January 2026
- Neighbour consultation end
- 6 February 2026
- Last date for comments
- 7 February 2026
- Target decision date
- 13 March 2026
- Permission expires
- 26 February 2029
Planning decision
- Statutory period
- 80 days
Publicity
- Advertisement expiry
- 7 February 2026
- Site notice end
- 6 February 2026
Additional information
- Planning Portal ID
- PP-14541830
- Documents
- 13
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Hitchin
- 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.
Associated applications
- 20262 Nov
Proposed glass door on side elevation is removed; existing timber framed window to be replaced with new…
PendingNon-material amendmentAmendment26/02826/NMA - 202523 Dec
First floor rear extension and single storey side/rear canopy structure. Insertion of 2 no. front rooflights…
This applicationApprovedFull25/03155/FPH
Source: North Hertfordshire
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Around this site
Nearby applications
- 23 Trevor Road Hitchin Hertfordshire SG4 9TA26/00586/TCA · TreesApproved0.0 mi
- 45 Benslow Lane Hitchin Hertfordshire SG4 9RE25/01673/FPH · FullApproved0.0 mi
- 19 Benslow Lane Hitchin Hertfordshire SG4 9RE25/03139/FPH · FullRefused0.0 mi
- 32 Benslow Lane Hitchin Hertfordshire SG4 9RE24/00438/FPH · FullApproved0.0 mi
- 34 Benslow Lane Hitchin Hertfordshire SG4 9RE25/00403/FPH · FullApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Evolution Fireplaces LTDSolid Fuel Heating0.2 mi
- Ashe Roofing LtdRooferRoofers0.3 mi
- A S Bathrooms Ltd0.3 mi
- Pm Contractors LtdHitchin0.4 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.