Ulferts Börg, Medieval stone house in Upgant-Schott, Germany.

Ulferts Börg is a stone house in Upgant-Schott with thick exterior walls between 0.55 and 0.72 meters thick and a two-story front building about 15 meters wide. The structure combines a fortified residence with agricultural buildings arranged like a small enclosed courtyard.

The oldest parts of Ulferts Börg were built around 1430, after the Brokmer Willküren lost their force; that law had forbidden any Frisian to build a stone house over 12 meters high or with a moat. Local chieftain families then began erecting multi-storey brick towers. After the rise of the Cirksena, the East Frisian nobility declined and merged into the wealthy farming class, and the house was adapted over time.

The entrance hall features a Baroque portal decorated with coats of arms from former owners, documenting architectural changes across the centuries. These details tell of the different families who lived here and shaped the house.

The complex stands on the southeast edge of Upgant-Schott, beside a protected landscape area. It is a working farm and a guesthouse, so the buildings are not open to casual visitors. Arrange your stay or visit in advance rather than turning up unannounced.

A walled-up arrow slit in the western gable wall remains as evidence of the building's original defensive purpose. This sealed opening shows how such houses were once equipped to ward off attackers.