In contemporary architecture, there is a growing interest in combining vernacular principles with modern design approaches. The vernacular modernism strategy seeks to integrate the wisdom of traditional practices with innovative technologies, sustainable materials, and contemporary aesthetics. It is important to note that modernization and urbanization have led to changes in Libyan architecture, with many people opting for more contemporary designs and construction materials. Libyan architecture is heavily influenced by the country’s historical and cultural heritage, as well as its climate and natural surroundings. The traditional Libyan houses went through a dynamic conflict between itself and the environment. However, traditional Libyan houses still hold cultural significance and can be found in some rural areas or preserved as heritage sites. A traditional Libyan house is known as Bayt, Hawsh, and even Daar. The aim of this paper is to focus more on the characteristics of traditional Libyan houses, and how their sustainable factors have important aspects that should be used in contemporary house design. Therefore, Bayt Ben-Omran in Benghazi City is a genuine case study that provides a deeper understanding of the cultural, social, and environmental aspects of traditional Libyan houses that are sustainable. Ben-Omran came due to the interaction of the socio-economic elements of Libyan society in a certain historical stage of development with a certain technological level. The requirements of the climatic aspect fulfill the style and design of this house, and the presence of colonialism and foreign occupation resulted in a form of conflict within society, which gave it new appearances without losing its Arab originality. Some characteristics of traditional Libyan houses that can be applied to contemporary houses in order to have sustainable features are: construction, materials, thermal comfort, courtyard, privacy, functional layout, thermal regulation, connection to nature, adaptability, social spaces, water management, external facades, and interiors.