## 1 Introduction  
With the rapid development of the construction industry, the environmental impact of construction is not to be underestimated. In terms of worldwide energy consumption and CO\({}_{2}\) emissions, buildings are one of the three primary sectors (together with industry and transportation). In China, building carbon emissions makeup between 2/5 and 1/2 of all carbon emissions. The IPCC Sixth Assessment Report (AR6) Working Group III Report [1], which was made public in April 2022, states that Chapter 9 offers a thorough analysis of the world's greenhouse gas emissions from the building industry. The building industry is on track to attain net-zero greenhouse gas emissions by 2050 if robust policy measures are put in place to support rational demand, increase efficiency in energy consumption, and stimulate the use of alternative sources of energy. This is one of the key conclusions. Existing and new constructions have enormous potential to cut emissions, and implementing climate change mitigation measures will aid in achieving the Sustainable Development Goals (SDGs) of the United Nations, as well as enhancing the building industry's ability to respond to climate change in the future. Thus, it is thought that cutting construction emissions will be essential to reaching the long-term objective of keeping the rise in global temperature at 2 \({}^{\circ}\)C.  
The \"14 th Five-Year Plan\" for the development of the construction industry was released in January 2022 by the Ministry of Housing and Urban-Rural Development. It placed a strong emphasis on the rapid development of assembled buildings and the promotion of green construction techniques. It is obvious that the industrialized construction of assembled buildings, as opposed to traditional construction methods, will result in energy savings and reduced emissions. According to the \"In-depth Research and Development Trend Analysis Report on the Current Situation of China's Construction Industry (2023-2030)\", the completed residential area accounts for the largest share of the total, accounting for 66.26% of the total in 2021, followed by the completed area of factories and buildings, with a share of 13.81%, as shown in Figure 1. As a result, China views lowering the energy usage and carbon emissions of assembled homes as a crucial first step toward achieving energy savings and emission reduction [2]. In order to develop appropriate emission reduction strategies and methods to meet the goal of reducing emissions from building, carbon footprint accounting and research into factors impacting the carbon footprint can be used to evaluate the size and trend of the carbon footprint. A carbon footprint analysis of assembled homes is therefore pertinent.  
This paper focuses on the carbon footprint accounting and influencing factors of assembled homes in the materialization stage. First, the research boundary of the materialization stage of prefabricated housing is clarified. Secondly, the carbon footprint accounting model in this stage is constructed by adopting the carbon emission factor method. From an engineering management perspective, the factors that impact carbon footprints are thoroughly examined, and the internal structure of these factors is analyzed with the DEMATEL-ISM-MICMAC model, and then actual cases are introduced to verify the feasibility of the method. The study proposes a systematic carbon footprint model and influencing factors analysis method for the materialization stage of prefabricated housing, which provides a reference for low-carbon decision-making in assembled buildings. It also provides theoretical support for the administration's empirically established policies to reduce greenhouse gas emissions from the building industry.