Core Viewpoint - The article discusses the reasons why purchasing properties on the first, second, and top floors is generally discouraged, highlighting various disadvantages associated with each floor type [1][13]. Group 1: First Floor - The first floor is convenient for access but suffers from issues such as noise and dust intrusion, which significantly reduce living comfort [1][3]. - Safety concerns are heightened on the first floor, as it is more susceptible to theft and other criminal activities [1][3]. - Privacy is a major drawback, as residents on the first floor often have their living spaces exposed to passersby, leading to a lack of personal space [4]. Group 2: Second Floor - The second floor offers easier access compared to higher floors, making it suitable for families with elderly members or young children [6]. - However, it shares many of the same disadvantages as the first floor, including limited light and ventilation, though to a lesser extent [6]. - A significant issue for the second floor is the lack of independent drainage systems, which can lead to plumbing problems that are difficult to resolve [6]. Group 3: Top Floor - The top floor provides excellent views and natural light but is prone to overheating in summer due to direct sunlight exposure [8][9]. - Water leakage is a common concern for top floor units, as even modern construction techniques cannot completely eliminate this risk over time [9]. - Top floor apartments with loft designs can mitigate some of these issues, offering better insulation and additional usable space [11].