166 - 168 Cathedral Road Pontcanna Cardiff CF11 9JD Data via plota.co.uk

26/01861/FUL - Full Planning Permission Registered

Proposal

Proposed rear extensions at ground and first floor, extension to rear roof dormers, external alterations, re-roofing and making good of host property chimney Data via plota.co.uk

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View original council record ↗Last checked 27 Oct 2026, 02:58

Street View

Application progress

✓

Received

3 Sept 2026

✓

Consultation

8 Sept 2026

Decision

Expected by 29 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 28 Oct 2026, from Cardiff's recent extensions.

The consultation period closed on 1 Oct 2026.

Documents 13

Statements & assessments 3

PDF REVISED SCHEME STATEMENT Supporting Documents · 3 Sept 2026 View ↗ PDF HERITAGE STATEMENT Supporting Documents · 3 Sept 2026 View ↗ PDF GREEN INFRASTRUCTURE STATEMENT Supporting Documents · 3 Sept 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 3 Sept 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 ↗

Cathedral Road 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.

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 ↗

Registered park or garden 93 m away: Pontcanna Fields and Llandaff Fields

Its setting is a consideration for work nearby.

Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.

Not affected

No listed building at the site · 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.

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