The development of Chinese ancient architectural design has gone through three historical stages: primitive society, slave society, and feudal society. Due to the influence of geography, the environment, and the humanities, regional architectural styles of each region were also formed. In particular, this is reflected in the residential architecture. Among residential architectures, the courtyard architectural style is the most typical, adapting to the microclimate and improving the comfort of living. This enclosed style of architecture was accompanied by the diffusion of Chinese culture and enriched the architectural design of the East Asian region. Nonetheless, as urbanization accelerated, this traditional style of architecture began to be undermined. In addition, there is less discussion of the architectural content that embodies design ideas in terms of ritual, order, form, components, and color. In order to preserve this precious built environment, this study highlights the design style and its connotations. Through the use of case studies, the stylistic characteristics of a traditional dwelling in Northern China, and the restoration process are assessed. Furthermore, observations on key building components, construction techniques, and materials are made in terms of architectural ideas. This leads to the proposition that conservation strategies should be appropriate to local conditions. The findings show that building restoration can contribute to the effective conservation of traditional building forms and provide an opportunity to inherit traditional culture. Moreover, it is more conducive to the presence of Chinese residential architecture that shines in the world discourse. New perspectives and contributions are offered to the fields of architectural design and conservation.