Green Low-Cost Housing Units Zaydoun Abu Salem 1 , Ayoub Abu Diyah 2 , Loay Dabour 1 , Moshrik Hamdi 1 , Alla Kheder 1 , Sofian Ismail 1 Abstract This research intends to propose a comprehensive green engineering solution for a cluster of homogeneous green building units as housing blocks, energy self-sufficient, that packed together in a block to facilitates space for services and social activities at its heart, designed to house refugees sustainably in war zones of semi-arid regions as in the Levant. The housing units was passively designed approach was used to suit the semi-arid climate to produce low-cost and fast construction units using local clay materials reinforced with recycled disposed products as plastics and leftover of expanded polyester from agricultural activities in addition to local habitat as clay and hay. The units built with these products are thermally comfortable, energy efficient which designed to respond to the predominant climate during all seasons. The design concept includes the idea of attached to semi -detached blocks with a service area at the center. used also for social activities. These blocks of units can be replicated and designed to fit all orientations with minor adjustments. Building blocks manufactured from the local habitat, such as clay, hay and harmful materials available, such as plastics and leftovers of expanded polystyrene from agricultural activities. Tests for strength, ductility, cohesion, water absorption and thermal conductivity were conducted for the adobe building blocks. The end product is aspired be economic, fast in production, environmentally friendly and sustainable. to the proposed model would facilitate future expansion for more efficiency and enhanced aesthetics to meet the increasing needs for housing refugees in the devastated areas in our inflamed region and other areas of similar conditions. Keywords: low-cost housing units, semi-arid climate, adobe building blocks, thermal conductivity, reinforced clay. ---------------------------------------------------------------------------------------------------------------------------------------- 1 Al-Zaytoonah University of Jordan, Amman-Jordan 2 Private Sector