Where Tampa Bay homes face flood risk in next 30 years

The share of Pinellas County properties with a significant risk of flooding is projected to increase by 18% in the next 30 years, according to the nonprofit First Street Foundation.

• In Hillsborough, that rise is projected at about 11%.

Why it matters: Of the roughly 4,600 prospective homebuyers Zillow surveyed nationwide last spring, over 80% said they considered at least one climate risk when looking for a home, Axios' Sami Sparber reports.

State of play: Real estate websites are sharing more climate risk information with buyers and sellers.

• Realtor.com, which was the first major site to show a home's flood risk, added heat, wind and air-quality risks to listings last month. The company added wildfire risk in 2022.

Threat level: Nearly 45% of U.S. homes face the risk of severe or extreme damage from environmental threats, according to a new report from Realtor.com.

By the numbers: All Tampa Bay area counties other than Polk face a projected increase in the number of homes at risk of flooding, per the First Street Foundation data.

• Sarasota faces the biggest jump in the region and the second-highest increase in Florida at 34%.
• Pasco's increase is projected at about 14% and Manatee at 11%. Polk has a projected decrease of about 2%.
• The highest increase — 41% — is expected in Volusia County, home to Daytona Beach.

Between the lines: Climate change threatens to make homeownership more expensive, said Matthew Eby, First Street founder and CEO, at an SXSW panel last month.

• Millions nationwide may see higher insurance rates due to the risk of extreme weather, according to recent First Street modeling.

What's next: Climate risks aren't the only consideration when buying a new home, but more shoppers might want to know about home improvements made to mitigate against extreme weather, Realtor.com chief economist Danielle Hale said at the event.

Go deeper: The climate change real estate bubble risks billions