Pre and post Geotechnical investigation is an essential key requirement for infrastructure development anywhere in the world. It is a regulatory need for both local and state government infrastructure planning, design, and construction in Australia. Due to the current Pandemic, Australian Federal Government offered various stimulus packages to keep running the building industry, leading to more infrastructure development where there are aggravated risks without a comprehensive investigation, consideration and practices. Responsive, quality decision-making and context-sensitive geotechnical investigation are critical to lowering the probability of structural, financial, and life-threatening risks. It has enormous potential to build a resilient and cost-effective structure for asset owners. The study brought a practical case is called "Verde Drive West extension, and Prinsep Road construction" for best practice example from the City Cockburn, Western Australian growing local government. In this growing council, more than half a billion-dollar value projects are planning and implementing. The project illustrates how cost-effective site-specific investigation assesses their potential impact on the proposed development, develops geotechnical and engineering geologic design parameters, and achieves design and field information for efficient decision-making in the infrastructure building. This study showed that a detail investigation with a better reference could make less ambiguity for clients, consultants, and contractors. It includes a brief site description and condition, detail field exploration, results, laboratory testing, conclusion, and recommendations. The study concludes that the findings will help understand academic and practitioner in better project-specific scoping for subsoil investigation through context-sensitive approaching predominantly in Perth, Western Australia.