Is it true that coastal real-estate prices have seen no impact from the threat of rising sea levels?

Explaining a decline in home-sale volumes and relative sale prices in some Florida markets, a recent study by the National Bureau of Economic research suggests that “prospective buyers have become more pessimistic about climate change risk than prospective sellers.” The study cites worst-case projections for sea level rise as one explanation for buyers' increasing uncertainty about purchasing a home in a flood zone. It estimates relative prices have declined 5% over the last two years.

A study about the effects of Hurricane Sandy on New York real estate prices found a "price penalty" even for flood-zone homes that weren't damaged by the storm. In 2017 the penalty was 8%.

First Street Foundation, which quantifies the impacts of rising sea levels, estimates that over $403 million in relative home values was “missed out on” between 2005–2017 in four New England states.