Please feel free to call our marketing team for any inquiries regarding upcoming launches or current portfolio of units.           PT. DIAN PERMANA Jl. Johar 3-5, Surabaya T: +62 31 3533937   MARKETING OFFICE Jl. Raya Dian Istana , Surabaya T: +62 31 7530123   CLUB HOUSE DIAN ISTANA Jl. Raya Dian Istana , Surabaya T: +62 31 7526800