This report outlines the design and development of a Central Reservation System (CRS) for CarHire, an Australian rental company. It covers the entire system development life cycle, starting with the planning phase, which includes defining the project scope, resource allocation, and stakeholder analysis. The system analysis phase focuses on functionality requirements, budget analysis, and technology selection, utilizing tools like Android Studio, PHP, SQL, HTML, CSS, and jQuery. The design phase involves creating a prototype, implementing security measures, and documenting the implementation process. System implementation includes testing functionality and security, with results shared with stakeholders. The report concludes with deployment, maintenance planning, and project closure. Figures illustrating the Work Breakdown Structure (WBS) and Gantt chart are included to visualize the project's timeline and tasks.