对一项财产的所有权采取共有的方式,在世界各国广泛存在。具体按占有所有权的先后,可区分为分时共有和同时共同两大类,而同时共有又分为共同共有和按份共有两种。当然,从住房供应政策的具体组成角度考虑的,共有产权住房主要指的是按份共有产权的住房。即各方通过共同出资购买一套住房并因此共同享有住房的产权,从而缓解了住户单方一次性购买全部产权的经济压力。共有产权住房在国外已有数十年的发展历史。其中,尤以英国的共有产权住房制度 The common approach to the ownership of a property is widespread in all countries of the world. According to the specific possession of the priority, can be divided into time-sharing and at the same time common two broad categories, while the total is divided into common and share a total of two. Of course, from the perspective of the specific composition of the housing supply policy, the common ownership of housing refers mainly to the share of the total ownership of housing. In other words, all parties have jointly financed the purchase of a house and thus share the property rights of the house, thereby alleviating the economic pressure on the households to purchase the entire property rights in one go. Total ownership of housing in foreign countries have decades of history. Among them, especially the British common property housing system