The space between the door and the street is known as a Vestibulum. This term is commonly used in architecture to refer to an uncovered area or an entrance hall located at the entrance of a building. The vestibulum acts as a transitional space between the outside environment (street) and the interior of the building (door).
In Roman architecture, the vestibulum was an important architectural feature found in front of the main entrance to a house or a temple. It served as a reception area where visitors could wait before being admitted into the main building. The term "vestibulum" is derived from Latin and means entrance hall or forecourt.
Understanding the term "vestibulum" in architecture can help you identify and describe the purpose of this space in various buildings and structures.