Milanówek was established in the late 19th and early 20th century as a result of parceling land belonging to Michał Lasocki, and lying along the Warsaw-Vienna Railway.
Since the beginning, Milanówek was a summer resort for wealthy residents of Warsaw, who set up lavish summer homes that often, when the owners decided to move permanently, were turned into grand villas. The most famous of the early holiday-makers was Polish writer, Boleslaw Prus. Another permanent resident of the town was sculptor Jan Szczepkowski.
Developed in the interwar period, and still dominant in the older part of town, is some residential architecture. In the 1920s Central Experimental Station of Silk Production was founded.
In 1951 the town received city rights. In 1961 the city limits were extended, taking over villages including Nowa Wieś (now this part of the city is called Milanowek Kazimierówka). In the communist period there was further development of industry, especially the creation of a factory for surgical and dental instruments: "MIFAMA".
After the administrative reform of 1999, Milanówek became one of the six municipalities forming the district Grodziski.
Monuments
Monuments of Milanowek include the parish church of St. Hedwig, the "Turczynek" villa, accommodation for soldiers from World War II and many villas built between 1896 - 1945, including "Potęga", "Matulinek", "Hygea", and "Borówka". They are all in the national register of historic monuments (26 items). 388 pre-war villas and other valuable buildings in the middle of Milanowek have been included in the national register of historic monuments.
Sports
Football club Milan Milanówek was founded in 1986.[1] As of 2021, they compete in the fifth-tier IV liga in the Masovian II group.[2]