Schwerinsburg, Hilltop castle in Windhoek, Namibia.

Schwerinsburg is a hilltop castle in the Luxushügel district featuring a three-story keep and curved defensive walls built from field stones. The structure contains a 104-meter-deep water well in its courtyard that was commissioned to ensure the residence's water supply.

The structure was built in 1890 as a signal tower by Curt von François and was transformed into a castle by Wilhelm Sander between 1904 and 1913. This reconstruction converted a military outpost into a representative residential compound.

The northeastern facade resembles a chapel with Gothic-style double windows, reflecting European architectural styles in colonial Namibia. These details show how settlers wanted to recreate their homeland through architectural elements.

Schwerinsburg is a private residence, so visits are limited to viewing it from outside. The castle-like effect is best seen from the northeastern side, at the end of Schwerinsburg Road or from Sam Nujoma Drive in the valley below. The building stands on a ridge in the Luxushügel district.

The 104-metre borehole in the courtyard was sunk by Count Schwerin in the hope of striking water. He renamed the estate after Schwerinsburg in Vorpommern, the 1721 house where he grew up. The castle has been privately owned since 2013 and housed the Italian ambassador until early 2013.