Our team is working on a project which follows a vertically attached approach. A C&S building is sitting on top of a retail building, each with separate entrance, energy metering, management, etc.

Both buildings share underground parking space.

Is there a way in which energy savings from the parking space may be considered towards energy efficiency of the C&S building?

The parking space has been considered as a separate building, since it is separated from the C&S building by the retail space.