Is Castletroy in a flood zone?

Parts of Castletroy are. The OPW has mapped river flood extents within about 1.5 km of the town centre. A zone covers streets, not the whole town, so the answer for one house depends on where it stands. The report checks the exact Eircode against the 1 in 10, 1 in 100 and 1 in 1000 year extents.

Will a house in Castletroy be hard to insure against flooding?

Insurers price by postcode and by the OPW record. With 5 recorded events within 2 km, expect questions on the proposal form and possibly a flood exclusion on some streets. Ask the seller for their current policy schedule: if flood is excluded, you will inherit that problem.

What does the paid report add for a house in Castletroy, Co. Limerick?

It puts the Eircode point against every OPW flood extent, lists recorded floods within 500 m with dates and OPW notes, checks GSI groundwater flood maps and coastal erosion, and ranks the result against the other thirty-seven checks (radon, BER, planning, knotweed, title, sewer and more) for that one address.

Flood risk · Castletroy, Co. Limerick

Flooding in Castletroy: 5 recorded floods, OPW flood zones

The OPW register holds 5 recorded floods within 2 km of the centre of Castletroy, and the OPW has mapped river flood extents nearby. What that means for a house here, and how to check the exact address.

Figures compiled from the public records listed at the foot of this page. Data snapshot: 2 October 2026. Updated when the records change.

Check one house in Castletroy

5 recorded floods within 2 km of Castletroy, OPW flood zones on the map.

One specific house in Castletroy: flood zone for that Eircode, recorded floods within 500 m, radon, planning applications within 300 m, BER, sale history. Thirty-eight checks in all, each linked to the public record.

€19.99, free snapshot first. No account.

Or read the sample report first: a real house, 16 pages.

recorded flood events within 2 km of the town centre (OPW)

Yes

river flood extent mapped nearby (1 in 100 year, OPW CFRAM)

coastal flood extent mapped nearby (1 in 200 year)

What the OPW record says about Castletroy

The Office of Public Works keeps a register of past floods. Within 2 km of the centre of Castletroy it holds 5 events, the latest in 2020. By source: river (3). A recorded event does not mean every street went under. It means an insurer’s model knows the town.

Most recent on file:

February 2020: Flooding at Castletroy to Limerick on 01/02/2020 (river). Flooding Lower Shannon Feb-March 2020
November 2009: Plassey to Groody/Shannon Confluence 19th to 24th November 2009.
November 2009: Castletroy, Limerick, 19th to 24th November 2009.
November 2009: University of Limerick Area November 2009 (river).
undated: N-24 Ballysimon Limerick recurring (river). Groody

Separately from past events, the OPW flood maps (CFRAM) draw modelled extents for river flooding near Castletroy. A house inside the 1 in 100 year river extent, or the 1 in 200 year coastal extent, will usually need a flood-specific conversation with the insurer before you can draw down a mortgage.

What to do before bidding on a house here

Look the exact address up on the OPW map, not the town. Two houses on the same road can sit on opposite sides of an extent line. Ask the seller in writing whether the house or garden has ever flooded and whether a flood claim was made. Ask for the current insurance schedule. If the house is inside an extent, get a quote before going sale agreed: some insurers decline outright, and the bank will not lend without cover.

The report on this site checks flood for one Eircode in about a minute. The paid report adds the distance to each recorded event, which extents the point falls in, and the GSI groundwater map, all with links to the source so a solicitor can rely on them.

Also for Castletroy

Radon in Castletroy · Planning applications in Castletroy · BER ratings in Castletroy · Flood risk across Co. Limerick

Nearby: Limerick, Dooradoyle, Shannon, Kilmallock, Nenagh, Ennis.

Other checks for Castletroy

Radon in CastletroyHigh Radon Area
Japanese knotweed in Co. Limerick526 records
BER ratings in Castletroytypical B3
Planning applications in Castletroy208 applications
Planning permission in Co. Limerick1,063 applications

GuideIs my house in a flood zone? What the OPW maps say and what insurers do with them

Questions people ask

Is Castletroy in a flood zone?: Parts of Castletroy are. The OPW has mapped river flood extents within about 1.5 km of the town centre. A zone covers streets, not the whole town, so the answer for one house depends on where it stands. The report checks the exact Eircode against the 1 in 10, 1 in 100 and 1 in 1000 year extents.
Will a house in Castletroy be hard to insure against flooding?: Insurers price by postcode and by the OPW record. With 5 recorded events within 2 km, expect questions on the proposal form and possibly a flood exclusion on some streets. Ask the seller for their current policy schedule: if flood is excluded, you will inherit that problem.
What does the paid report add for a house in Castletroy, Co. Limerick?: It puts the Eircode point against every OPW flood extent, lists recorded floods within 500 m with dates and OPW notes, checks GSI groundwater flood maps and coastal erosion, and ranks the result against the other thirty-seven checks (radon, BER, planning, knotweed, title, sewer and more) for that one address.

Sources

Area figures, compiled from public records. They describe the town or county, not any one house. The paid report checks the exact Eircode.