Alsenhof and the surrounding lands were acquired in 1862 by the first cement manufacturer in Lägerdorf, the Englishman Edward Fewer. He lived with his mother, his niece and the machinist "Mick" in the then thatched farmhouse. The entrance to the farm was where the large chestnut tree is today. It was declared a natural monument in 1958.
In 1933 the farmhouse, along with the workers' barracks on the property and Alsen'sche Gesellschaftshaus, were demolished and in their place today's building complex was erected as an agricultural business. The Alsenhof is an impressive group of buildings that characterize the townscape of Lägerdorf with its style of home protection architecture. The Alsenhof has been a listed building since 1981.
In the past 80 years, there have been various tenants for the Alsenhof who, among other things, operated seed breeding, chicken fattening, pig fattening, arable farming and cattle fattening on the farm and the associated land.
In these 80 years, the areas belonging to the Alsenhof were also reduced due to the sale of industrially used areas, the sale of areas to the municipality of Dägeling and the use of the areas for the A23 motorway. The remaining lands are leased today and are primarily used for storing chalk.