"Sonnenhof" by Lale Andersen—a thatched beach house in the dunes of Langeoog

Nestled amid Langeoog’s distinctive dune landscape, just a few steps from the North Sea, the Sonnenhof exudes a unique atmosphere. Set in an exceptionally peaceful setting, this historic estate combines North German seclusion with one of the island’s most exclusive residential areas.

The beach is just about 300 meters away. At the same time, the house lies away from tourist areas—with no adjacent restaurants or heavy foot traffic. Instead, the immediate surroundings are defined by dunes, open ...