Archives, Mill Lay Lane, Llantwit Major Data via plota.co.uk

2026/00224/1/NMA - Non material amendment Approved

Proposal

Non-Material Amendment to change the integral garage to a habitable room and replace the proposed garage door with 2no. smaller windows. Planning Permission 2026/00224/FUL - Demolition of conservatory and attached garage, remodel and extension to rear and sides of property, reroof, re-render and clad with stone. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
30 Jul 2026
✓
Approved
20 Aug 2026

Approved on 20 Aug 2026 · Delegated · Last checked 13 Sept 2026

Associated applications 2

Site constraints 1

Radon affected area, class 5
An estimated 10 to 30% of homes reach the radon action level. Indicative for the 1 km square, which takes the highest class found in it; a radon test gives the answer for a building.
From the British Geological Survey and UK Health Security Agency indicative atlas. Under building regulations, as the BRE guide BR 211 (2023) sets out, new buildings and extensions need basic radon protection from class 3 in England and Wales and from class 2 in Scotland, and full protection from class 5. The class at the site itself, from the detailed BGS map, decides which.
UKHSA radon ↗
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Building

Floor area195 m² (2,099 sq ft)
Energy ratingC (70 out of 100)
PropertyDetached house, 8 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in January 2026, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
Glamorgan
Application type
Non material amendment
Postcode
CF61 1QE
Received
30 Jul 2026
Validated
30 Jul 2026
Ward
Llantwit Major
Parish
Llantwit Major Town Council
Case officer
Show
Target decision
27 Aug 2026
Decision
Approved
Decision date
20 Aug 2026
Decision level
Delegated
Applicant
Show
Agent
Jon James Studio Architecture

Consultation & key dates

Committee
20 Aug 2026

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.