Although the smart parking system is not a new concept for Sri Lankans, the idea of booking parking slots in advance and then parking is a novice theme for our country. So, we decided to see that novice theme as a new opportunity and used this concept for our study title, As the first phase of the study, we agreed to design a remote reservation parking system for a public parking area. We designed an online parking reservation mobile application system that shows the available free parking slots to the users where the users can reserve a parking slot for any time they want. IoT-enabled mobile app technology was used to develop the system. Results show promising results applying such a system to local parking stations in Sri Lanka.