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104 Ridge Road Letchworth Garden City Hertfordshire SG6 1PT

26/00216/LBCListed Building ConsentRefused

Refused on 30 March 2026

Delegated (officer decision)1 reason for refusal

Approximate site (title boundary)
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 3no. existing timber double-glazed windows to front elevation with Residence 9 Upvc double-glazed windows

Received
27 January 2026
Decision level
Delegated (officer decision)
Ward
Letchworth South East Ward
  1. Received27 Jan
  2. Validated27 Jan
  3. Consult.4 Mar
  4. Target24 Mar
  5. Decided30 Mar

Decided in 62 days (council typically 49)

About this application

This is a heritage application for window replacement at 104 Ridge Road Letchworth Garden City Hertfordshire SG6 1PT. North Hertfordshire has handled 345 applications of this type. This one was decided in 62 days, 13 days longer than North Hertfordshire's typical decision time. The site is in the Dartford Town Centre conservation area, with 3 listed buildings nearby. There have been 3 other applications at this address. In the past year there have been 82 applications across Letchworth South East 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

Why it was refused

  1. Reason for Refusal Nos. 2-122 (evens) Ridge Road are grade II listed and form a pioneer estate designed by B Parker and R Unwin in 1906 for the Garden City Tenants Limited. The estate comprises 13 grouped terraces forming a cul-de-sac and village green layout. These properties are located within the Letchworth Conservation Area. By reason of changing the frame material from timber to Upvc, the glazing system incorporating 28mm double-glazing and together with the lack of construction framing details including the split transom and single transom sections indicating that these can be readily manufactured as part of the Residence R9 system to replicate the original window design found elsewhere on the Birds Hill Estate, the replacement windows would harm the listed building's special character. The replacement windows will fail to satisfy the provisions of Sections 16(2) and 72(1) of the Planning (Listed Buildings and Conservation Areas) Act 1990, the aims of Section 16 of the NPPF and the aims of Policy HE1 of the North Hertfordshire Local Plan 2011-2031.

From the council's decision notice.

Application details

Postcode
SG6 1PT
Application type
Listed Building Consent
Scale / size
Small
Parish
Letchworth Garden City

Planning application dates

Date validated
27 January 2026
Consultation expiry
14 March 2026
Consultation end
4 March 2026
Last date for comments
14 March 2026
Target decision date
24 March 2026

Planning decision

Statutory period
56 days

Publicity

Advertisement expiry
14 March 2026
Site notice end
11 March 2026

Additional information

Planning Portal ID
PP-14655764
Comments
0
Documents
7

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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 (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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