This study examined the relationship between local government projects, and rural wellbeing, with the moderating role of institutional capacity in Cross River North Senatorial District, Nigeria. A cross-sectional survey design was adopted, covering the entire District. 1,067 questionnaires were administered, and 962 valid responses were retrieved (90.2% response rate). Data were analysed using descriptive statistics, and regression analysis. Findings revealed positive relationships between local government projects and rural wellbeing (β = 0.57, p < 0.001) and between community participation and rural wellbeing (β = 0.49, p < 0.001). Institutional capacity significantly moderated the relationship between local government projects and rural wellbeing (β = 0.18, p < 0.001), increasing explained variance to 44%. The study concludes that improved rural wellbeing depends not only on local government projects and meaningful community participation but also on adequate institutional capacity to implement, monitor, and sustain development interventions. Strengthening institutional capacity and participatory governance is therefore recommended for effective development.