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Climate change puts 13,000 homes in capital at higher risk of flooding


Flood waters in Harold’s Cross following bad weather in 2011

Flood waters in Harold’s Cross following bad weather in 2011

Flood waters in Harold’s Cross following bad weather in 2011

Almost 13,000 homes are at risk of flooding in Dublin, due to the increased risk of extreme weather events as a result of climate change, a new report has claimed.

The capital figures highest on the list for the number of homes that would be damaged in a flood, according to the research from location intelligence solutions company Gamma.

The company said that it used a "detailed 3D-flood model" combined with the Eircode database to establish the devastation to housing that could be caused in a major flood.

"Increased flood risk is perhaps the biggest challenge," said Gamma chief executive Feargal O'Neill.

"Analysis like this is of significant value to homeowners, local authorities, planners and insurance companies, who require detailed assessment of flood-risk exposure, as we look to the infrastructure being built now to cater for increases in flood risk."

The company said the highest risk score for flood damage is based on the source of the flood - including river, coastal and surface flooding - as well as likely water depth.

Cork ranked second on the list for homes at risk, with 6,722 dwellings facing major problems in a serious deluge, while 5,273 were deemed at risk in Clare.

When looking at the national picture, the company said just under 60,000 residences are at significant risk from flooding, which translates to just over 3pc of residential housing.

Co Clare has just over 10pc of its housing stock currently in areas deemed to be a significant risk in the flood model, while Louth's risk is just slightly lower at 9pc.

The two counties scored highest because they are at risk of both coastal and river flooding, bringing a larger amount of homes into deluge zones.

According to the research, Longford is the county least likely to be affected by flooding with only 1pc of the housing at significant risk from such a weather event.

Cavan and Westmeath also have a relatively low percentage of residences in high flood risk zones, at around 1pc and 2pc respectively.

Gamma used its Perilfinder risk mapping platform, which it says is used by Irish insurers to assess environmental risk.

In August 2013, properties across Dublin, particularly basement flats, were severely flooded after a 'monster rain' event hit the capital.