Flood Risk Assessment in Carlow
Expert flood risk assessments for planning applications throughout County Carlow. From Carlow Town on the River Barrow to rural sites across the Slaney catchment, we complete FRAs for residential, commercial, and agricultural developments across the county.
Get a Quote or call 087 417 3832 or WhatsAppIf we can’t answer, please leave a message or send a WhatsApp — we’ll get back to you.Do I need a Flood Risk Assessment for planning in Carlow?
Yes, if your site is in or near Flood Zone A or B, or Carlow County Council has requested flood risk information at Further Information stage. The Carlow County Development Plan 2022–2028 and its Strategic Flood Risk Assessment apply the 2009 Planning System and Flood Risk Management Guidelines, so applications in or near flood zones need a site-specific FRA proportionate to the risk. In Carlow that usually means the River Barrow through Carlow Town, Leighlinbridge and Bagenalstown, the Burrin River, and the Slaney catchment around Tullow.
Flood Risk Assessment for Carlow Planning Applications
If you're submitting a planning application to Carlow County Council and your site is in or near a flood zone, you'll need a Flood Risk Assessment that satisfies the requirements of the Carlow County Development Plan 2022-2028 and the Planning System and Flood Risk Management Guidelines.
Carlow's flood risk is dominated by the River Barrow, which flows through Carlow Town and has experienced significant flooding events. The River Slaney catchment affects the eastern parts of the county around Tullow and Bunclody. The Burrin River and smaller tributaries create additional localised flood zones throughout the county.
- River Barrow corridor (Carlow Town, Leighlinbridge, Bagenalstown)
- River Slaney catchment (Tullow area)
- Burrin River flooding
- Urban infill in Carlow Town flood zones
- Agricultural developments in Barrow floodplain
What's Included
Every FRA we complete for Carlow sites includes:
Stage 1, 2 & 3 Assessments
Proper methodology using OPW flood mapping and modelling data. Where data is limited or outdated, we undertake bespoke hydraulic modelling (1D/2D HEC-RAS).
Climate Change Allowances
Future flood levels incorporating OPW climate change guidance for long-term flood risk.
FFL Comparison
Your proposed finished floor levels compared against design flood levels plus freeboard.
Development Plan Compliance
Explicit demonstration of compliance with Carlow County Development Plan flood risk policies.
Further Information Requests
Received an FI request from Carlow County Council asking for flood risk information? We regularly handle urgent FI responses for Carlow sites. Typical turnaround is 7–10 working days — often faster for straightforward sites.
Key Documents for Carlow Flood Risk Assessments
Every FRA we prepare for a Carlow site is assessed against the development plan and Strategic Flood Risk Assessment (SFRA) of the relevant planning authority, the national flood risk guidelines, and the latest OPW flood data:
Carlow County Council
- Carlow County Development Plan 2022–2028 (as varied)
- Strategic Flood Risk Assessment for the Carlow County Development Plan 2022–2028 (Appendix 3)
National guidance and flood data
- The Planning System and Flood Risk Management – Guidelines for Planning Authorities (DoEHLG & OPW, November 2009)
- The Planning System and Flood Risk Management – Technical Appendices (November 2009)
- Circular PL 2/2014 – Flooding Guidelines (revised Section 5.28 on minor development)
- OPW Flood Maps – floodinfo.ie (CFRAM, NIFM and NCFHM flood mapping)
Links open the official source documents. Development plans are periodically varied, so we always check the current version and any variation SFRA when preparing your report.
Carlow Flood Risk Assessment FAQs
Has Carlow Town flooded recently?
Yes. Carlow County Council's SFRA records that the Barrow burst its banks in Carlow Town from 19 to 27 November 2009, reaching depths of up to 1.5 m and affecting 33 homes and 16 commercial properties. Severe flooding in 1995 led to the Carlow Flood Relief Scheme.
Do the Carlow and Tullow flood schemes protect my site?
The Carlow Flood Relief Scheme (built 2010–2013) protects around 185 properties to the 1% AEP standard, and the Tullow scheme (2011–2012) protects around 42, according to the council's SFRA. Flood zones are mapped without defences under the 2009 Guidelines, so defended sites still need an FRA that addresses residual risk.
Which flood data is used for Carlow sites?
Design flood levels from OPW CFRAM and NIFM mapping on floodinfo.ie for the Barrow, Burrin and Slaney, checked against Carlow County Council's SFRA flood zone mapping. For unmodelled streams, we carry out hydraulic modelling.
Can I get planning permission in Flood Zone A in Carlow?
Possibly. Under the 2009 Guidelines, highly vulnerable development such as housing in Flood Zone A must pass the Development Management Justification Test, and Carlow County Council will expect a site-specific FRA to show the development, its occupants and its access are safe without increasing flood risk elsewhere. Minor development such as small extensions, small-scale infill and changes of use is treated differently under Circular PL 2/2014: the Justification Test does not apply, but a commensurate flood risk assessment is still required.
How long does a Flood Risk Assessment take in Carlow?
Typically 7–10 working days from instruction for a Stage 2 assessment, and often faster for straightforward sites. If Carlow County Council has issued a Further Information request with a deadline, tell us when you get in touch and we will prioritise it. Stage 3 assessments with hydraulic modelling take longer and are scoped per site.
Need an FRA for a Carlow Site?
Send us your site address and we'll provide a fixed-price quote, typically within 24 hours.
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