This survey-based study uses the Relative Importance Index to assess the relative importance of factors influencing local construction material sourcing. The survey considered economic, social, environmental, and stakeholder factors. Each factors perceived importance among respondents is nuanced by the RII values. Material acquisition and transportation costs had high RII scores of 0.83, highlighting the importance of economic factors. Adaptability to market dynamics is also important because market fluctuations affect the cost of locally sourced construction materials (RII = 0.84). The decision-making process is heavily influenced by social factors, particularly job creation (RII 0.83). Environmental sustainability is important (RII = 0.81), but economic and social factors are more important. Recognising stakeholder views and priorities as moderately important (RII = 0.80 - 0.82), highlights the need for alignment with stakeholder expectations. In addition, respondents value forecasting industry trends and local material sourcing preferences moderately (RII = 0.80). In conclusion, these findings can help construction industry decision-makers plan and allocate resources based on survey respondents priorities. Understanding and prioritising these influential factors is crucial for sustainable and effective construction material sourcing as the industry navigates complexity.