Commercial property transactions last quarter declined 19 percent from the previous quarter to NT$27.7 billion (US$929.22 million), as monetary tightening and economic uncertainty pushed buyers and sellers to the sidelines, Cushman & Wakefield Taiwan (戴德梁行) said on Tuesday. Office and industrial spaces accounted for NT$15.18 billion, or 54.9 percent of the overall trading, driven by expectations of increased rental incomes, the property consultancy said. Rental income calculations led Kung Ching International Development Co (坤慶國際) and Universal Estate Development Co (環泥建設) to acquire property in the Uni-President International Building (統一國際大樓) near MRT Taipei City Hall Station in Xinyi District (信義) for NT$3.49 billion,