De Bloem

De Bloem is an octagonal wooden structure located on Haarlemmerweg 465 in Amsterdam, connected to two residential buildings at its base. The mill houses operational mechanisms and sails that continue to function periodically.

De Bloem was originally built as a grain mill and served an essential role in Amsterdam's milling landscape. It represents a period when wind power drove the industrial processing of grain for the city's needs.

The mill now serves office functions, creating an unusual mix of historical mechanics with contemporary work spaces. This repurposing shows how Dutch communities adapt traditional structures to meet modern needs.

Access is available during the second weekend of May on National Windmill Day, when the structure opens to visitors. Travelers should plan ahead for limited visiting windows and confirm any specific conditions before arriving.

Despite housing contemporary offices, the mill still maintains its working machinery and operates its sails on occasion. This unusual combination of active mechanical systems within a modern business setting makes it a rare example of working heritage.