自1998年以来,北京根据国家政策和要求进行了大量保障性住房的建设,其中最早开始建设的是经济适用住房。1999年,根据国务院23号文的要求,北京规划建设了首批19个经济适用性住房,包括回龙观、天通 Since 1998, Beijing has carried out a large number of affordable housing projects in accordance with the national policies and requirements, of which economic construction was the earliest to start. In 1999, according to the State Council Document No. 23, Beijing planned to construct the first batch of 19 affordable housing units, including Huilongguan, Tiantong