Galveston, TX

The 1900 Galveston hurricane killed an estimated 8,000 people—the deadliest natural disaster in US history—and the city's current hurricane score of 95 at the 99th national percentile is the unbroken line between that event and today. The seawall constructed afterward did not change the underlying barrier-island exposure; it created a managed floor that subsequent events have repeatedly tested. Hurricane Ike in 2008 produced storm surge that topped portions of the seawall and caused $29.5 billion in regional damage—the modern reference point for what the West End beach corridor and East End historic core actually face in a major event. We checked twice: insurance for Galveston barrier-island property runs from $3,800 to $9,500 annually, and short-term rental economics are one of the most reliable ways to miscalculate total carrying costs. Elevation certificates and storm shutters are practical pricing variables, not optional add-ons. Properties without current elevation documentation face longer time-to-close and higher initial quotes. The seawall familiarity that draws buyers to the midtown corridor does not translate to reduced flood or wind exposure—it translates to marginally improved surge protection in the specific scenario the wall was designed for. Heat at the 85th national percentile adds year-round operating pressure in a market where cooling costs compound through humid Gulf summers. The flood score of 94 at the 98th national percentile means flood insurance is not discretionary—it is a structural carrying cost priced into honest total cost of ownership for any Galveston property. The 1900 hurricane and Ike together define the risk envelope. That envelope has not closed, and no seawall changes its outer boundary.

— Open Data Collective