Plans that are viewed from above, but laid out as if they were projected downward onto the back of an upper surface, such as a ceiling. In such a plan all members seen on the left from below appear on the right in the plan. The term also refers to plans for ceilings depicted as if reflected in a mirror on the floor, within the context of the floor plan, with the goal of illustrating how the ceiling design or configuration relates to the floor plan.

Discipline focusing on the composition of spaces, often but not always interior architectural spaces. It includes plans for the flow of the inhabitants or users of the space, adherence to building codes, environmental factors, and other such concerns. For the discipline focusing more on the aesthetic planning of spaces, prefer "interior architecture (discipline)."

Orthographic drawings or works in another media depicting a building, object, or site as if cut through and exposed at one specific plane.

lists of words, names, or phrases explaining or giving the value of conventions or symbols used on a map, chart, or other graphic document

drawings, prints, or other media in which the projectors are perpendicular to the plane of projection (drawing surface), that is, a three-dimensional object is shown fully frontally at all points, with no indication of recession into depth

site plans containing landscaping information, such as site grading, and location and description of plantings, sprinklers, or lighting devices

Drawings that pertain specifically to the structural layout of a building.