Under patronage of the Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud, the 4th Arab Housing Conference titled "Activating Partnership between Public and Private Sectors for Development of Housing Sector" was concluded here yesterday with participation of the Arab ministers of housing and reconstruction. The conference recommended to build urban communities, not residential gatherings, and to establish necessary infrastructure to achieve a unified Arab vision towards activating the partnership between the public and private sectors for development of the housing sector in the Arab world as well as to provide appropriate investment environment to attract the private sector.