Which item is NOT considered an additional service in architectural practices?

When considering additional services in architectural practices, it's important to recognize that these services typically go beyond the core architectural design tasks. Renderings and models are fundamental components of the design process and are integral to communicating design intent to clients and stakeholders. They serve as essential tools that facilitate discussions and approvals throughout a project.

In contrast, the other options represent specialized services that may be offered beyond the standard architectural services. Building Information Modeling is a significant and complex service that involves digital representations of physical and functional characteristics of places. Furniture, Furnishings, and Equipment Design focuses on specifying and designing the interior elements, which are not standard in architectural services. Post Occupancy Evaluation involves assessing building performance after it has been occupied, an evaluation that often requires additional resources and expertise.

Thus, while renderings and models are key to the architectural process, they do not fall into the category of additional services, as they are necessary for effectively completing a project.