Group 1 - The article discusses the differences in living experiences between middle units and corner units in residential properties, highlighting the advantages of corner units in terms of light, ventilation, and overall living quality [1][3][12] - Middle units are budget-friendly for first-time buyers, offering lower total prices and smaller shared areas, but they come with significant drawbacks that become apparent over time [5][19] - Key issues with middle units include poor lighting, inadequate ventilation, noise from neighbors, and lack of privacy, which can lead to a less enjoyable living experience [7][10][11] Group 2 - Corner units provide superior lighting and ventilation, enhancing the overall living quality, with natural light and fresh air contributing to a more pleasant environment [14][16] - The price difference between corner and middle units can be significant, with corner units typically costing 5-15% more, which may be a consideration for budget-conscious buyers [19][20] - Potential downsides of corner units include exposure to direct sunlight, which can increase cooling costs in summer, and possible water leakage issues in rainy areas, although modern construction methods have mitigated some of these concerns [22][23][24] Group 3 - For those considering middle units, recommendations include choosing units with connecting corridors for better airflow and light, ensuring the main rooms face south for optimal sunlight, and opting for larger balconies to enhance space and brightness [27][29][31]

Group 1 - The concept of "one ladder two households" refers to a building design where two households share one staircase, with specific requirements for the number of elevators based on the number of floors [1] - Common configurations include two elevators (one for passengers and one for fire safety) and two staircases, often referred to as "two ladders two households" [1] - Despite some advantages, such as privacy and ventilation, the design has significant drawbacks, including high shared area costs and potential difficulties in resale [3][4] Group 2 - Key issues with "one ladder two households" include poor living experience due to privacy concerns, low elevator efficiency during peak times, limited natural light, and high shared area costs [3] - Resale challenges arise from low market acceptance, weak appreciation potential, and high maintenance costs, leading to financial strain for some homeowners [3] - Neighborly disputes and design flaws from developers further exacerbate the living conditions, making it essential for buyers to carefully consider their needs before purchasing [3] Group 3 - The price of "one ladder two households" is often higher due to its classification as a small high-rise or villa, which is seen as a desirable option for home improvement [4] - The design typically does not significantly impact lighting, as these buildings are not excessively tall, and the average number of households per elevator is lower compared to high-rise buildings [4][6] - The overall market dynamics for resale are consistent across the second-hand housing market, rather than being solely dependent on the property type [4]