THE Beijing municipal government has taken steps to relieve the increasing shortage of comfortable living space for foreigners by approving a further two real estate joint ventures in the capital. The first is the Sino-American Beijing Chunyuan Real Estate Development Corp, which is planning to invest US$60 million in three 20-storey residential towers in Chaoyang district. The second project given the go-ahead is by Taiwan-funded Beijing Evergreen Real Estate Development Corporation. Units in this $120 million development in Beijing's Economic and Technology Development Zone are already being marketed. Of the 6,500 foreign firms registered in Beijing last year, only 2,600 have established office space. Meanwhile, the cost of residential and office space in the city has increased dramatically, said municipal officers.