This research investigates the pivotal factors facilitating the successful implementation of sustainable management practices in public ultra-modern markets, essential components of urban landscapes facing numerous challenges. Despite the growing acknowledgment of sustainability in urban development, a significant gap exists in comprehending the specific drivers behind effective management within these bustling market infrastructures. Utilizing a mixed-method approach, combining cross-sectional surveys and personal interviews, 239 administered questionnaires with a 76.7% response rate, reveals this study employs a pragmatic case study design focused on the Niger-Delta Region, Nigeria. Questionnaires were distributed, and interviews and observations conducted in New Town Market (Port Harcourt, Rivers State), Swali Market (Yenegoa, Bayelsa State), and Uvwie Market (Warri, Delta State). The study, based on key enablers of sustainable management, including organizational structure design, teamwork ethos, knowledge sharing, commitment levels, good governance, regular sustainable management meetings, and motivation for the management practice team. Quantitative data were analyzed through frequency tabulation, percentages, mean, and Relative Importance Index (RII), while qualitative data underwent transcription and analysis employing data reduction, content analysis, and thematic analysis. The findings underscore the significance of these enablers in enhancing infrastructure management effectiveness within public ultra-modern markets in Nigeria.