In addition to designing numerous corporate headquarters, one of the firm's key early projects was the Tuwaiq Palace, a diplomatic club in Riyadh completed in 1985. In collaboration with Buro Happold and Frei Otto, Omrania's design drew from vernacular architectural forms such as the tent and fortification, adapted to the desert climate.[10] The solution resonates with the natural landscape and incorporates innovative modern technology and sustainable design features, according to architectural historian Chris Abel.[11]