房地产，回到了10年前

Core Viewpoint - The article discusses the recent surge in high usable area ratios (得房率) in real estate, comparing it to a past trend of "gifted area" in housing projects, and questions the validity and implications of these marketing strategies [1][4][35]. Group 1: Usable Area Ratio (得房率) Insights - The usable area ratio is a key indicator of residential practicality, calculated as the ratio of usable area to total saleable area [1][2]. - Misconceptions about usable area ratio include the belief that it can exceed 100%, which is often a marketing tactic by developers [7][8]. - A higher usable area ratio is generally perceived as better, but it must be balanced with considerations of shared space and overall living quality [8][31]. Group 2: Factors Influencing Usable Area Ratio - Building design standards and regional differences significantly impact usable area ratios, with regulations dictating minimum public space requirements [9][10][12]. - The height and type of residential buildings affect the usable area ratio, with higher buildings typically having lower ratios due to increased safety and design requirements [18][20][21]. - Community quality and public facility standards also play a role in determining usable area ratios, as higher quality amenities can lead to increased public space and thus lower usable area ratios [22][23]. Group 3: Policy and Regulatory Context - Current regulations lack upper limits on public space ratios, leading to potential disputes and consumer dissatisfaction [34]. - Transparency in area measurement is insufficient, with some cities implementing measures to improve clarity for buyers [34]. - International practices suggest a shift towards more consumer-friendly area measurement standards, which could influence future regulations in the domestic market [34][36]. Group 4: Future Trends - The balance between usable area ratio and public space is essential for enhancing living quality, moving towards a focus on design efficiency rather than mere area competition [35][36]. - As policies evolve, the industry may transition from a focus on area metrics to a more quality-driven approach in housing development [36].