Zhonglan Apartment, No.27, Xidawang Road, Chaoyang District, Beijing, belongs to Shuangjing Street and is located in the central and western part of Chaoyang District. East from the East Fourth Ring Road, south to Jinsong Street and Refractive Road, west to Dongcheng District, north to Tonghui River, north to Jianwai Street, bordering Nanmofang Township. The maximum distance between east and west is 3.8km, and the maximum distance between north and south is 2. 1 km.