Which blueprint page shows the building's boundaries?

The plot or site plan is the correct choice because it specifically provides a detailed representation of the land on which the building will be constructed. This page includes the boundaries of the property, including any easements, setbacks, and site orientation relative to the surrounding area. The plot or site plan is essential for understanding how the building integrates with the overall site, including features such as driveways, landscaping, and neighboring structures.

In contrast, the elevation presents the exterior view of the building's facade, the floor plan outlines the layout of rooms within the building, and the foundation plan focuses on the structural elements that support the building’s foundation. While each of these elements is crucial for different aspects of building design and construction, it is the plot or site plan that directly addresses the property boundaries.