The Fernand-Anna mining estate, located between Wittenheim and Kingersheim, was built as a housing estate between 1908 and 1930; started under the German regime, the construction was continued after 1918 by the state-owned potash mines of Alsace, a French nationalized company. The housing estate had a total of 585 dwellings; it included 13 types of workers' houses, 4 types of employees' houses and 5 types of engineers' houses. The construction of these houses was accompanied by the realization of facilities: a home for bachelors (destroyed in 1920), schools (1928), a medical-social center (1930), the church called chapel (1937) and an auditorium (destroyed).