This report provides a comprehensive IT infrastructure proposal for Cosboa, a small business development organization planning to open a new branch in Sydney. The report begins with an analysis of the building's floor plan and the number of rooms to determine the geographical scope and logical network design, including IP addressing and subnet masking. It then explores cloud computing solutions, specifically Amazon AWS and Google Drive, for hosting application servers, email services, and data storage. The report also discusses various virtualization techniques, such as network, application, and desktop virtualization, and their application in supporting cloud platforms. Finally, it examines how cloud computing can support dynamic scaling of the organization's applications. The report offers detailed network diagrams, IP address allocation tables, and analyses of cloud providers, providing a practical guide to building a robust and scalable IT infrastructure.