Office hours "Vienna-South" Mon 7:30 - 18:30 Tuesday 7:30 - 18:30 Wed 7:30 - 14:30 Do. 7:30 - 14:00 Fr. 7:30 - 12:00 24-hour service hotline 01 866 95 Non-profit building and housing cooperative "Wien-Süd", registered cooperative with limited liability Untere Aquäduktgasse 7 1230 Vienna UID: ATU 37584903 FB: FN 99 147f DVR: 058 67 49 Tel: 01 866 95 - 0 Fax: 01 866 95 - 1444 General Inquiries my dream apartment new projects | Existing apartments | Business premises