Complex sentence: It was designed by, architect of the Kabuki-za theater and the Otaru branch of the Bank of Japan, and constructed by the Matsui Group (松井組, now Matsui Construction Co.: 松井建設株式会社).
Split into simpler sentences: It was designed by, architect of the Kabuki-za theater and the Otaru branch of the Bank of Japan. Its construction was executed by the Matsui Group (松井組, now Matsui Construction Co.: 松井建設株式会社).