Sportverein Sandhausen 1916 e.V. owns this stadium.
BWT-Stadion am Hardtwald: BWT-Stadion am Hardtwald (former Hardtwaldstadion) is a football stadium in Sandhausen, Germany. BWT-Stadion am Hardtwald:  Situated in a small patch of forest near the Sandhausen town limits, it is the home stadium of local football team SV Sandhausen. SV Sandhausen: Sportverein Sandhausen 1916 e.V., commonly known as simply SV Sandhausen or Sandhausen, is a German association football club that plays in Sandhausen, immediately to the south of Heidelberg in Baden-Württemberg.
i don't know