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Flood risk · Trelystan

Flood risk for Trelystan

Indicative risk for the kilometre square around the centre, from Natural Resources Wales’ Flood Risk Assessment Wales. Always check a specific property address on the official map before buying or building.

River & sea flooding
Very low
No part of the square is in a mapped risk area.
Surface water flooding
Very low
High
0.1%
Medium
0.1%
Low
0.1%
Nearest watercourse
Lowerfield Brook
A river, 1,710 m from the centre of Trelystan
High: more than a 1 in 30 chance of flooding each year. Medium: between 1 in 100 and 1 in 30 from rivers (1 in 200 and 1 in 30 from the sea). Low: between 1 in 1,000 and 1 in 100 (1 in 200 from the sea). Below that, risk is very low.
For a property-specific flood risk check, use the official Natural Resources Wales map at flood-risk-maps.naturalresources.wales.

Natural Resources Wales, Flood Risk Assessment Wales (rivers, sea, and surface water and small watercourses): the level shown is the highest risk that applies to at least 5% of the 1 km square centred on Trelystan; bars show each level’s share of that square. Nearest named watercourse from OS Open Rivers. Contains Natural Resources Wales information © Natural Resources Wales and database right. Contains Ordnance Survey data. Open Government Licence.