The Castle Hill Cottages in Newport, Rhode Island are modern shoreline accommodations set across the historic Castle Hill peninsula. Though newer than the 19th‑century Agassiz mansion—now the Inn at Castle Hill—they contribute to the estate’s evolution from a marine biologist’s summer retreat to a premier coastal getaway. Built to offer privacy and direct beachfront access, the cottages blend contemporary comfort with the relaxed New England coastal style of the original property. Often described as “newly built beach cottages,” they extend the inn’s 40‑acre waterfront experience while preserving the spirit of Castle Hill’s scientific and seaside heritage.