Treorchy Flood Risk
Treorchy has a High flood risk from rivers and the sea , with 10.8% of homes in a Medium or High band.
Treorchy has 7,645 residents and 3,390 homes. Ranked 48 of 621 in Wales for rivers and sea flood risk.
When Has Treorchy Flooded Before?
The Environment Agency holds 6 recorded flood outlines covering Treorchy, the most recent dated 24 November 2024.
Absence of a record is not evidence that a place has never flooded — the Environment Agency states that a lack of coverage does not mean an area has never flooded.
What Does Treorchy's Flood Risk Classification Mean?
33.1% of postcodes in Treorchy sit in Flood Zone 3, the planning band for land with a 1% or greater annual chance of river flooding or 0.5% or greater of sea flooding — and the map that draws it deliberately ignores flood defences.
The flood risk band for rivers and the sea is High , with 10.8% of homes in a Medium or High band. Unlike the Flood Zone, the band counts the defences that are actually in place, which is why the two can describe the same street differently and both be right.
Which Postcode Districts Cover Treorchy?
Each district below is one postcode district that falls inside Treorchy. The band is the one shared by most of that district's postcodes, so it describes the district rather than a single street — enter a full postcode in the checker for one address. A district can cover more than one town, and the district pages linked from the checker are keyed to the town that holds most of its postcodes.
| Postcode district | Postcodes here | Rivers and sea band | Surface water addresses |
|---|---|---|---|
| CF42 | 163 | Low | not published for this district |
How Does Flood Risk Affect Insurance And Buying In Treorchy?
A High flood risk band can affect the price, the excess and the availability of home insurance, and it is worth checking before you buy. Flood cover is normally part of standard home insurance, and insurers set their own prices.
How insurers price flood risk, what Flood Re covers, and what to do if a standard insurer declines.
The eight statutory conditions, with an eligibility checker that gives a real verdict.
Barriers, airbricks, pumps and non-return valves, ranked by what they protect against.
This site is not authorised by the Financial Conduct Authority and gives no advice. It explains the market and links to regulated intermediaries.