Core Viewpoint - The trend of moving away from duplex apartments is increasing, as many homeowners are regretting their decisions due to various shortcomings in living experience, costs, and liquidity [1][4][6]. Group 1: Living Experience - The initial appeal of duplex apartments was their spacious design, allowing for distinct functional areas, but many residents now find the actual living experience disappointing [1][4]. - The overall height of duplex apartments is often limited, leading to a sense of oppression in the upper level due to low ceiling heights [4]. - Poor indoor lighting and ventilation are common issues due to the design of duplex apartments, which typically have a wide facade but limited depth [3]. Group 2: Living Costs - Renovation costs for duplex apartments are significantly higher than for standard residences, often exceeding 500,000 to 600,000 yuan, adding financial pressure on middle-class families [6]. - Additional costs such as property management fees, heating expenses, and maintenance funds are also elevated due to the nature of duplex living [6]. - The larger area of duplex apartments requires more time and effort for cleaning, leading many busy families to hire cleaning services, which incurs further expenses [6]. Group 3: Liquidity Issues - The resale market for duplex apartments is challenging, with many potential buyers preferring larger flats in city centers or villas in suburban areas, resulting in limited interest in second-hand duplexes [6]. - The high total price and associated living costs make duplex apartments less accessible for average middle-class families, limiting their appreciation potential and liquidity [6].