How did courtyards organize private houses in traditional Chinese architecture?

In traditional Chinese architecture, private houses were organized around a modular system of courtyards that emphasized privacy, social hierarchy, and family structure. Dwellings were typically rectangular, with high walls enclosing the compound to provide seclusion from the outside world.1

The organization of these spaces followed a clear, often axial, layout:

• Entrance and Service Areas: Upon entering the front gate, a screen wall was often placed to block the view of passersby and ward off evil spirits. This led to an outer or service courtyard, which housed kitchens and quarters for servants or guests.1
• The Main Courtyard: A secondary gate led to the primary courtyard, which served as the center of family life. This space was typically flanked by buildings on three sides, with all windows facing inward toward the court.1
• Hierarchical Living: The northern wing, which received the most sunlight, was reserved for the head of the family and his wife. The eastern and western wings were designated for married sons and their families, reflecting the traditional ideal of multi-generational living.1
• Expansion: Larger families often added additional courtyards behind the main house, maintaining a consistent, standardized arrangement.12