In 1830, the Bremen merchant and shipowner Diedrich Heinrich Wätjen had purchased land for a summer residence on the Geest ridge between Vegesack and Blumenthal and had a country house built. From 1830 onwards, he had the park surrounding the building laid out in the style of a spacious English landscape garden according to plans by the landscape gardener Isaak Altmann.
His son Christian Heinrich Wätjen expanded the property. The original house was replaced by a castle-like villa in the English Tudor Gothic style, which was built between 1858 and 1864 according to plans by the Bremen architect Heinrich Müller. The park is now known as Wätjens Park.
In 1916, the Wätjen family sold the country estate, which had been converted into a military hospital at the start of the First World War. The park was divided between the neighboring industrial companies Bremer Vulkan and Bremer Wollkämmerei (BWK). The castle belonged to the Vulkan part.
The pointed roof of the higher tower was removed during the Second World War. After the war, the roof and some gables were destroyed by fire. The roof was only temporarily rebuilt and made much flatter.
After the Vulkan went bankrupt in 1997, the park portion was auctioned off privately. The city of Bremen later acquired the park land from this buyer and the BWK. The castle and other residential buildings remained in private ownership with the associated land. The plan to set up a restaurant in the castle was not realized. It contains apartments and the studio of an artist.