What is the space between the ground and the bottom of a home's foundation called?

The space located between the ground and the bottom of a home's foundation is commonly referred to as a crawl space. This area is typically used for access to plumbing, electrical systems, and HVAC components, allowing technicians to perform maintenance or repairs without needing to excavate the foundation. Crawl spaces are often ventilated to prevent moisture buildup and are constructed to provide a buffer between the home and the ground below, which can help with insulation and drainage.

Other options do not accurately represent this specific space. A basement is usually a living area that is fully enclosed with a floor above grade, while the attic is the space found above the ceiling of the top floor. A foundation void, while it may refer to gaps or voids in the foundation itself, does not describe the designated space beneath the foundation. Therefore, "crawl space" is the term that specifically captures the essence of the area in question.