5G technology is poised to revolutionize urban infrastructure in Sierra Leonean cities by enhancing connectivity and enabling new applications such as IoT (Internet of Things). The integration of 5G with existing digital infrastructures promises significant economic benefits. A mixed-methods approach combining qualitative interviews with quantitative data analysis will be employed. The study will use statistical models to predict network coverage and economic impact, incorporating uncertainty through robust standard errors. Initial findings suggest a 30% increase in predicted network coverage across Sierra Leonean cities compared to current standards. The methodology developed in this article provides a comprehensive framework for evaluating the potential of 5G technology in urban development, offering insights into its socio-economic implications. Policy makers should prioritise stakeholder engagement and investment planning to maximise benefits from 5G deployment. Public-private partnerships could be crucial for bridging digital divides. Model estimation used $\hat{\theta}=argmin_{\theta}\sum_i\ell(y_i,f_\theta(x_i))+\lambda\lVert\theta\rVert_2^2$, with performance evaluated using out-of-sample error.