
Flood Risk
Flood Risk Check: Co. Offaly
Check any Co. Offaly address against OPW flood zones and recorded past flood events, alongside radon, BER, planning and more.
Free snapshot. Enter an Eircode and we'll find the property. No card, no account.
About Offaly
Flood Risk in Co. Offaly
Offaly's 3 major river systems (Shannon, Brosna, Clodiagh) define the county's flood risk landscape. As an inland county, Offaly's flood risk centres on river overflow and surface water drainage. The OPW has mapped detailed flood zones across Offaly's towns including Tullamore, Birr, Edenderry. A PropertyPack report checks your specific Eircode against official flood probability maps, historical flood events, and planned flood relief schemes.
Co. Offaly at a Glance
- Population
- 83,000
- Province
- Leinster
- Coastline
- Inland county
- Character
- Predominantly Rural
- Main Rivers
- Shannon, Brosna, Clodiagh
- Median Price (2026)
- €285,000 (+5.6% YoY)
- Radon (of homes tested)
- 2.3% at/above 200 Bq/m³
- Recorded Flood Events
- 120
- Mica/Pyrite (DCB Scheme)
- Not designated
Sources: Property Price Register (sales to 2026); EPA radon measurements to 2019 (self-selected sample, % of homes tested, not prevalence); past flood events derived from OPW floodinfo.ie data; DCB scheme designations via gov.ie.
Major Towns
Flood History & Relief Schemes in Co. Offaly
120 past flood events are on record for Co. Offaly in the OPW's national flood-event database. The county has 1 completed flood relief scheme and 1 more in progress or under consideration. A recorded event is a report of past flooding, not a verdict on any one property.
Recorded Past Flood Events
120
Schemes Completed
1
In Progress / Considered
1
Flood Relief Schemes in Co. Offaly
| Scheme | Status | Properties Protected |
|---|---|---|
| Tullamore Flood Relief Scheme | Completed | 100 |
| Rahan Flood Relief Scheme | In Progress | 4 |
Source: Flood Risk Management County Summaries & Past Flood Events, floodinfo.ie. Past-event counts derived from the OPW floodinfo.ie Past Flood Events layer. Nationally, 57 completed schemes protect over 13,640 properties, with €1.3 billion committed to flood relief under the National Development Plan. The OPW's flood maps do not designate individual properties as at risk, and since 2014 the OPW shares completed-scheme data with Insurance Ireland to support flood cover in defended areas.
Flood history also decides whether insurers will quote, see flood insurance in Ireland: the coverage gap.
This is the county picture. The report checks your exact address.
Enter the Eircode of any Co. Offaly property.
18
Official Risk Checks
12
Government Data Sources
60s
Average Snapshot Time
26
Counties Covered
What We Check
Every Offaly property, 18 checks.
Flood Risk
Environmental
02Radon Gas
Environmental
03Planning History
Development
04BER Rating
Energy
05Soil Stability
Structural
06Water Quality
Environmental
07Crime Statistics
Safety
08School Catchment
Amenities
09Noise Levels
Environmental
10Conservation Areas
Legal
11Industrial Proximity
Environmental
12EV Charging Network
Infrastructure
Plus more checks across insurance, neighbourhood and transport. See them all on the sample report.

Due Diligence
Know the risks before you sign in Offaly.
Check flood risk for any address in Offaly. Free snapshot, 18 checks from 12 official sources. No card, no account.
Properties for Sale in Offaly
Latest properties on the market in Co. Offaly. Click “Check Risks” to run a PropertyPack report on any listing.
Wood Of O, Tullamore, Derrygrogan, Co. Offaly, R35W3F9
3 Chancery Park Downs, Tullamore, Co. Offaly, R35A0C0
Frequently Asked Questions
Flood Risk in Offaly: FAQs
What does a PropertyPack report cover for Offaly properties?
A PropertyPack report for any Offaly address covers 18 risk categories: flood risk (OPW data), radon levels (EPA data), BER ratings (SEAI), property prices (Property Price Register), crime statistics (CSO), school catchment, broadband speeds, planning applications, air quality, noise levels, and more. Each check runs for the Eircode you enter, with the data's confidence level labelled where a source is only published at county or division level.
How much does a property report for Offaly cost?
The full 18-check PDF report for any Offaly address costs €29. House-hunting across several properties? A 3-report bundle is €59 and a 5-report bundle is €79. You see a free snapshot first, no card needed.
Is Offaly at high risk of flooding?
Flood risk in Offaly varies by location. Properties near the Shannon, Brosna and Clodiagh face higher risk. The OPW has mapped detailed flood zones across Offaly. PropertyPack checks your specific Eircode against these maps and includes historical flood event data.
What rivers cause flooding in Offaly?
The main rivers in Offaly are the Shannon, Brosna and Clodiagh. These river systems define the primary flood risk areas across the county. OPW flood relief schemes are active or planned along several of these river systems.
Which areas of Offaly have the lowest property risk?
Risk levels vary across Offaly depending on which factor you're considering. Properties away from Shannon, Brosna and Clodiagh flood plains have lower flood risk. For radon, 2.3% of homes tested in Offaly measured over the Reference Level. The EPA's map shows which areas are classified as High Radon Areas. Well-established residential areas in Tullamore, Birr, Edenderry tend to have better broadband, lower crime, and closer school access. PropertyPack helps you compare specific locations within Offaly across 18 risk categories.
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