## 1 Introduction  
In October 2018, the intergovernmental panel on climate change proposed a pathway to achieve carbon neutrality by 2050, aligning with the Paris Agreement's goal of limiting the global temperature rise to 1.5 \({}^{\circ}\)C [1,2]. Since then, the urgency of addressing the climate crisis has been emphasized at the UN climate action summit (September 2019) and the conference of the parties to the United Nations Framework Convention on Climate Change (November 2021), thereby accelerating global discussions on carbon neutrality [3]. Particularly, after the COVID-19 pandemic, the growing recognition of the climate crisis has prompted major countries to officially declare their commitment to achieving carbon neutrality [4]. The record-breaking global heat observed in 2024 suggests an increased likelihood that the planet is approaching the 1.5 \({}^{\circ}\)C threshold set by the Paris Agreement [5; 6].  
Korea announced the 2050 carbon neutrality goal, aiming for net-zero emissions by 2050 and a 40% reduction in CE across all industries, from 727.6 million tons in 2018 to 436.6 million tons by 2030 [7]. To achieve this goal, Korea introduced the Korean New Deal policy in 2020 and enacted the framework act on carbon neutrality in 2022 as part of its carbon neutrality efforts [8; 9]. In the building construction process, the production stage contributes 29% of the total CE, whereas the operation stage accounts for 65%, highlighting the importance of reducing emissions in both stages [10; 11]. To date, many countries have primarily focused on reducing energy consumption during the operational phase of buildings through initiatives such as Zero Energy Buildings (ZEBs) and the use of renewable energy [12]. However, to achieve full carbon neutrality in the building sector, it is essential to address the production stage, which accounts for a significant proportion of the total life cycle [13].  
In order to evaluate CE and assess CR performance during the production phase, it is necessary to first derive the \"material information\" and \"quantity information\" of the construction materials used in buildings and then convert these into \"greenhouse gas information\" [14]. While numerous studies have been conducted individually at either the material level or the building level, there is a lack of research that integrates \"material information\" and \"quantity information\" into a unified framework to comprehensively evaluate carbon neutrality performance [15]. In practice, many global companies require carbon neutrality performance results for buildings to meet the standards of global initiatives such as renewable energy (RE) and carbon-free energy (CFE). However, such assessments are typically conducted on a project-by-project basis when requested, resulting in inconsistencies across evaluators and reduced reliability and comparability of results [14; 16].  
Therefore, this study aims to propose a methodology for evaluating carbon neutrality performance during the production stage. A database was developed for various types of \"material information\" used in buildings, and a comparative analysis of CE ranges was conducted. To derive \"quantity information\", a reference building was constructed. Based on this, a quantitative evaluation methodology for carbon neutrality performance was established, and the \"greenhouse gas information\" was derived for both residential and non-residential buildings. This approach integrates currently fragmented material- and building-level assessments, providing a quantitative evaluation framework that supports construction stakeholders in making informed decisions from the design planning stage to achieve optimal carbon neutrality performance. In particular, the data and methodology proposed in this study are presented with detailed calculation procedures and results to ensure practical applicability in the construction industry.