Final answer:
The term that refers to the front of a building distinguished by its architectural treatment is 'façade', which is part of the structure's external elevation and may include decorative elements like friezes and pediments.
Step-by-step explanation:
The term you are looking for, which describes the front of a building or any of its sides facing a public way or space, especially one distinguished by its architectural treatment is a façade. This term relates to the external elevation that is typically the most important from an architectural standpoint, often designed with more ornamental or distinctive features to present an imposing or aesthetically pleasing aspect.
The façade may incorporate elements such as arcades, friezes, and pediments, enhancing the building's visual impact.