What are the potential consequences of inadequate site drainage?

Inadequate site drainage primarily leads to water accumulation, which can have significant negative impacts on a building's structure and surrounding environment. When water is not properly drained, it can collect around foundations, leading to increased hydrostatic pressure. This pressure can cause cracks in foundations, walls, and other structural components, which compromises the integrity of the building. Furthermore, standing water can promote the growth of mold and mildew, leading to health hazards and further degradation of building materials. Therefore, the consequences of inadequate drainage are serious and can affect both the safety and longevity of a structure.

In contrast, the other choices suggest positive outcomes—such as increased aesthetic value, better energy efficiency, and enhanced outdoor space—that are not associated with poor drainage conditions. These options do not address the underlying issues that arise from inadequate drainage, highlighting why they are not suitable answers in this context.