Homeowners Insurance & Natural Hazard Costs in Nantucket
Nantucket's real, defining hazard-cost story is accelerating coastal erosion, layered with a genuine, disclosed gap in what standard homeowners and flood insurance actually cover.
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Learn moreReal, accelerating, currently-observable coastal erosion
Nantucket has experienced approximately 8.7 inches of sea-level rise since 1950, with coastal flooding and erosion projected to cause over $3.4 billion in cumulative island-wide damages absent mitigating action -- and some bluff-front properties have already lost the large majority of their assessed value.
A real, disclosed insurance coverage gap
Standard homeowners insurance does NOT cover flood damage, and standard flood insurance covers only sudden flood events -- NOT the gradual recession of a coastal bluff. Confirm directly what coverage, if any, applies to a specific target parcel.
No Nantucket-specific premium figure confirmed; use the statewide range as a floor
No premium figure distinct from Massachusetts's own statewide range ($1,226-$2,634/year) was confirmed for Nantucket this pass -- expect the true figure for coastal-exposed Nantucket property to run at or above that range's high end.
Key takeaways
- Nantucket carries real, accelerating coastal erosion, with some bluff-front properties losing most of their assessed value.
- Standard insurance covers sudden flooding, NOT gradual erosion -- confirm actual coverage directly for any target parcel.
- No Nantucket-specific premium figure was confirmed; Massachusetts's statewide range ($1,226-$2,634/year) is a floor, not a ceiling, for coastal exposure.
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