Entrance to Marienhöhe in April 2014. Marienhöhe is a part (settlement, estate; german: Wohnplatz) and organic farm of Bad Saarow, District Oder-Spree, Brandenburg, Germany. The place was established in 1880 as folwark of the manor Saarow. Since 1928 the „Hof Marienhöhe“ works on the biodynamic agriculture-method (Demeter international) and is considered to be the oldest farm working with this method in Germany.