Darling Point's architectural heritage represents a living museum of Sydney's residential development, featuring some of the city's most significant historical homes and buildings. The suburb's streetscapes showcase an evolution of architectural styles, from early Victorian mansions to Federation homes and Art Deco apartments. Notable properties include heritage-listed mansions with their intricate ironwork, wraparound verandas, and ornate details characteristic of the Victorian era. The suburb also features excellent examples of Inter-war Period architecture, including apartment buildings that marked Sydney's transition to higher-density living. Many original estates have been thoughtfully preserved, maintaining their original features while adapting to modern living requirements. The area's architectural significance is enhanced by its dramatic topography, with many properties designed to take advantage of harbor views while respecting the natural landscape. This combination of historical preservation and architectural innovation continues to make Darling Point one of Sydney's most architecturally interesting suburbs.