Massing

Massing is a term in architecture which refers to the perception of the general shape and form as well as size of a building.

[1][2] Massing refers to the structure in three dimensions (form), not just its outline from a single perspective (shape).

[7] Because it has a direct relation to the visual impact a building makes, massing is one of the most important architectural design considerations.

A complex shape can present more opportunities for heat loss through the building envelope.

[9][10] For example, the Prairie School is always low and horizontal, while the Gothic style emphasizes verticality and Georgian architecture focuses on solidity and a sense of permanence.