Happy Valley is significant to Rebecca because it was inspired by a real valley within the grounds of Menabilly, the Cornish estate that influenced the setting of Manderley. According to the official Daphne du Maurier website, the author first wrote about this valley in her 1932 short story The Happy Valley, and later brought a similar setting into Rebecca. This location illustrates the great house as inherited power because Happy Valley is part of the larger estate surrounding Manderley, showing how the influence of the de Winter family extends beyond the house itself and into the natural landscape. Mapping this location on COVE reveals how du Maurier uses real Cornish geography to create the novel's Gothic atmosphere, while also showing how the narrator's limited point of view shapes our understanding of the estate because we experience its surroundings through her memories, emotions, and descriptions rather than through an objective perspective.
The connection between the real Menabilly estate and the fictional Manderley also shows how du Maurier uses familiar places to make the novel's setting feel believable while still giving it a mysterious atmosphere. The natural landscape surrounding the estate becomes almost as important as the mansion itself because it reflects the history and identity attached to the de Winter family. This also connects to the narrator's struggle to find her own identity because she enters a place that already has an established history and struggles to make it feel like her own. Although she becomes the new Mrs. de Winter, she is constantly reminded that Rebecca's presence and influence have not disappeared with her death. Happy Valley helps show that Manderley's power comes not only from its ownership but also from the memories and expectations that have become attached to the property.