The research study investigated the management practices of selected cities in Metro Manila through the specified sub-problems as stated in the study, such as the demographic profile, assessment of management practices, and determination of the significant differences in the assessment of the respondents on the variables mentioned in the research paper. This study was carried out to evaluate and analyze the existing management practices in selected cities of Metro Manila across various dimensions such as planning, human resources, financial management, administration, and monitoring and evaluation, to gather insights from different stakeholders including city administrators, employees, and community members regarding their perceptions and assessments of the management practices in their respective cities, to develop a set of actionable sustainability measures and to assess the proposed sustainability measures for their suitability, acceptability, and feasibility among stakeholders. The paper utilized the descriptive method, and the respondents were the employees and administrators of the selected cities of Metro Manila. Slovin’s formula was used to determine the number of respondents. For each group of respondents, various non-random and random sampling procedures were used, such as Purposive and Simple random techniques. The Frequency Distribution, Percentage formula, Weighted mean and Anova were employed to identify the level of perception of the respondents as shown in the verbal interpretations of the Likert scale survey questionnaire as well as the significant difference in the assessment of the group of respondents on the variables presented in the study. The results or findings of the study manifested the excellent and Very Good ratings in the most variables exhibited in the study. In terms of significant differences in the Suitability, Acceptability and Feasibility, the results showed that there is no significant difference in the responses, but there is a significant difference in the respondents’ perceptions on the Acceptability and Feasibility of the proposed sustainability program. In conclusion, management practices across selected cities in Metro Manila exhibit consistent excellence across various critical areas. Planning, human resource management, financial management, administration, and monitoring and evaluation practices all received outstanding ratings, reflecting effective leadership, strategic oversight, and robust operational frameworks. Administrators demonstrated strong performance across these domains, supported by positive feedback from stakeholders and employees, highlighting broad alignment and support for inclusive and sustainable urban development strategies.