The current stormwater and drainage monitoring across Putrajaya's lake, wetlands, and precinct drainage network relies on scheduled manual inspections and reactive reporting from ground teams, resulting in delayed detection of blockages, rising water levels, and localised flash flood risks during heavy monsoon rainfall. This issue occurs across critical infrastructure points including the Putrajaya Lake catchment, wetlands inlets, underpasses along Persiaran Perdana, and low lying areas in Presint 1, 8, and 9, affecting residents, road users, government tenants, and emergency response teams. If left unresolved, Perbadanan Putrajaya will continue to experience delayed flood response, damage to public infrastructure and landscaped areas, traffic disruption on federal administrative routes, and increased maintenance costs from reactive repair works. An intelligent flood early warning solution with IoT water level sensors, AI powered rainfall and drainage flow prediction, and automated alerting to operations and enforcement teams is therefore needed to enable proactive flood risk management, protect critical infrastructure, and reinforce Putrajaya's position as a climate resilient smart city.