This research delves into the intricacies of urban land excavation for construction purposes, specifically comparing two scenarios of sheet pile wall-supported excavations. The first case involves excavation subsequent to the placement of an adjacent footing, accompanied by the application of a surcharge load (Case A). Conversely, the second case explores excavation prior to footing placement (Case B). This comprehensive model testing mirrors real-world conditions, simulating both scenarios: excavation adjacent to a structure (Case A) and the creation of a structure adjacent to a preexisting excavation (Case B). The study employs a cantilever sheet pile wall to support excavation in medium-dense sand. It focuses on observing and comparing the deflection of the sheet pile wall in both cases. To provide a thorough analysis, variations in the distance of the footing from the sheet pile wall face (X) and the depth of the footing (Df) are systematically explored. The results of these variations are meticulously presented, providing insights on the nuanced behavior of sheet pile walls in different construction sequences.