Bryn Alyn, Woodlands Road, Froncysyllte, Llangollen, LL20 7SA Data via plota.co.uk

P/2026/0029 - Householder planning permission Approved

Proposal

Single storey rear extension Data via plota.co.uk

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View original council record ↗Last checked 24 Aug 2026, 08:55

Application progress

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Received

19 Jan 2026

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Validated

11 Feb 2026

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Approved

10 Apr 2026

Approved on 10 Apr 2026 · Delegated Decision · Last checked 23 Aug 2026

Documents 6

Site constraints 7

Nutrient neutrality catchment: River Dee

New homes and overnight accommodation must show nutrient neutrality before approval.

Natural England advice: extra wastewater in these catchments harms protected habitats, so schemes must offset their nutrient load, usually through credits.

Bryniau Clwyd A Dyffryn Dyfrdwy/Clwydian Range and Dee Valley National Landscape

Great weight to conserving the landscape; major development restricted.

Previously an area of outstanding natural beauty, which is still the designation in law. Since 2023 authorities must seek to further its purpose, not merely have regard to it.

World heritage site: World Heritage Site

Nationally designated heritage. Its significance and setting carry great weight.

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

Radon affected area, class 6

An estimated 30% or more 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 ↗

Also on the record

Special area of conservation about 407 m away: River Dee and Bala Lake / Afon Dyfrdwy a Llyn Tegid (Wales); SSSI about 407 m away: Afon Dyfrdwy (River Dee); Coalfield, development low risk area.

Not affected

Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 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 Mining Remediation Authority, 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.