Analysis of Score Acquisition Status of Land Use and Transportation Credits in G-SEED for Non-Residential Buildings - Certification Trends from 2017 to 2024 -

This study examined the score attainment status of the Land Use and Transportation (LT) category for non-residential buildings-general buildings, office buildings, and school facilities-that obtained G-SEED preliminary certification between 2017 and 2024.The findings are as follows.First, none of the LT items showed an average attainment ratio of 70% or higher across all building types.However, Item 1.7 "Bicycle parking installation" achieved a high average ratio of 78.8% in office buildings and 68.2% in general buildings, whereas school facilities showed a significantly low ratio of 16.3%.Item 1.6 "Proximity to public transportation" showed relatively even ratios across all types (office: 76.4%, general buildings: 58.3%, schools: 58.8%).Second, Item 1.4 "Validity of countermeasures for solar access interference" recorded a zero-score ratio exceeding 50% in all building types, reaching 81% in office buildings, suggesting that solar-access strategies tend to receive lower priority during the design process.Items such as 1.1 "Ecological value of the existing site" and 1.2 "Avoidance of excessive underground development," which are affected by site conditions and urban density, also showed zero-score ratios above 50% in various building types.These results provide empirical evidence on the current operation of the LT category under the G-SEED system, revised in 2016, and are expected to inform future improvements and updates to the certification framework.