The central conflict arises from the tension between the Forsyte family's obsession with material acquisition and the disruptive, uncontrollable nature of human desire. Soames Forsyte, a man who views his wife, Irene, as a possession, finds his rigid world challenged by her resistance and the shifting social landscape of late Victorian and Edwardian England. The narrative follows the internal and external pressures on the family as they attempt to maintain their status against the backdrop of a changing class structure. The prose is presented through a third-person omniscient perspective that observes the characters with a detached, analytical eye.

Readers and critics frequently highlight the precision of Galsworthy's social observation and his ability to capture the stifling atmosphere of the Forsyte household. Discussion often centers on the moral ambiguity of the characters, particularly the complex portrayal of Soames as both a villain and a victim of his own upbringing. Many note that the pacing is deliberate, favoring deep character study over rapid plot progression. The work is widely recognized for its effectiveness in illustrating the transition of British society from the rigid structures of the nineteenth century to the more fluid realities of the twentieth century.