Utö hus

Utö hus is a well-preserved medieval manor house situated on Arnö Island within Lake Mälaren in Uppland, Sweden. Although the exact construction date is not specified in surviving records, the estate first appears in written sources from the early 15th century, indicating its long-standing presence in the region. Architecturally, the building is a rectangular structure distinguished by its traditional crow-stepped gables. It comprises a cellar, two main residential floors, and two additional attic levels. The internal layout and division of rooms currently visible within the manor largely date back to renovations undertaken during the first half of the 17th century, reflecting the architectural tastes of that era.

The historical significance of Utö hus is marked by its association with prominent Swedish families and figures. Initially owned by the Schack family, the estate was merged with the neighboring Grönsö Manor in the 1630s following the marriage of Maria Näf to Johan Skytte, a notable Chancellor of Uppsala University. After undergoing repairs around 1740, the manor saw intermittent habitation until the 1840s, at which point it was converted into a storage facility, a role that likely contributed to its structural survival. In 1937, Alice von Ehrenheim donated the property to the Royal Swedish Academy of Letters, History and Antiquities, ensuring its protection and preservation for future generations as an important cultural landmark.