G-SEED Certification Status and Improvement Strategies for Residential Buildings: Focusing on 2016 to 2023 Trends

In this study, we analyzed the certification status and scoring trends of residential buildingsparticularly multi-residential and general housing-that received Green Standard Energy and Environmental Design (G-SEED) certification between 2016 and 2023.The study aimed to identify trends and areas for improvement within the certification system.Certification status was analyzed across multiple factors, including year, rating, region, certification version, number of units, and public/private classification.Certification scores were reviewed by final grade as well as by scores in specialized fields.The findings revealed the characteristics and trends in the evaluation of residential buildings under the G-SEED system.First, most certifications were at the [Green 4] level, with a notably low rate of [Green 1] certifications, suggesting a need for enhanced design and technical support, as well as stronger incentives.Second, the certification data showed that certified buildings were concentrated primarily in the metropolitan area, highlighting the need for regional cooperation and locally tailored policies to promote green building certification in other regions.Third, a higher proportion of certified buildings in the private sector compared with those in public sector indicated a rising interest and demand for green construction within the private sector, suggesting that policy support and tax incentives could further encourage participation.Lastly, an analysis of specialized fields revealed that the "5.Maintenance" category contributed significantly to overall scores, suggesting the need for differentiated approach and adjustments to difficulty levels for this category in future G-SEED updates.