In Sitges, some of the most expensive neighborhoods are rooted in their exclusivity and proximity to the beach. The Aiguadolç area is noted for its luxury villas and marina, attracting affluent residents who appreciate waterfront living. The San Sebastián neighborhood is another elite area, characterized by its lovely sea views and upscale properties, often preferred by expatriates and wealthy locals. Additionally, Bonanza, known for its modernist architecture and beautiful gardens, offers high-end homes that can command premium prices. The historical quarter, with its charming narrow streets and proximity to cultural attractions, also features some of the priciest real estate, appealing to those seeking both vibrancy and luxury in this coastal town.