Trengale, Piccadilly, Llanblethian, Cowbridge Data via plota.co.uk

2026/00766/FUL - Full Planning Application Awaiting Consultation Responses

Proposal

Existing side PVC conservatory to be demolished and replaced with a solid wall and pitched roof extension. New external door and small window to opposite side of dwelling to allow for access into new utility/boot room. Data via plota.co.uk

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View original council record ↗Last checked 27 Oct 2026, 05:10

Application progress

✓

Received

12 Oct 2026

✓

Validated

13 Oct 2026

Decision

Expected by 8 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 6 Dec 2026 and 15 Dec 2026, from Glamorgan's recent extensions.

Comments are open until 9 Nov 2026

Comment on this application ↗

Documents 8

Plans & drawings 5

PDF 01500 P02 Site Location Plan Plan · 12 Oct 2026 View ↗ PDF 01501 P02 Existing & Proposed Site Plan Plan · 12 Oct 2026 View ↗ PDF 01502 P02 Ground Floor Existing And Proposed Plans Plan · 12 Oct 2026 View ↗ PDF 01503 P02 Existing Elevations Plan · 12 Oct 2026 View ↗ PDF 01504 P02 Proposed Elevations Plan · 12 Oct 2026 View ↗

Application forms 1

PDF Application Form Forms · 12 Oct 2026 View ↗

Site constraints 4

Flood zone 3, rivers and sea

High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.

The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.

Flood map ↗

Llanblethian conservation area

Demolition needs planning permission and permitted development is restricted.

The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.

Scheduled monument about 97 m away: Llanblethian Castle

Its setting is a consideration for work nearby.

Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.

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 ↗

Checked on 20 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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.

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