General case
As long as you are using buildings which are not the domestic residence of your employees (co-working places, offices, warehouses, ...), the building data should be added to the module.
The surface and energy consumption only corresponding to the part of building that you are using.
To avoid double counting, if any rent is detected through the accounting file, its contribution to the final carbon assessment will be zero.
Home working case
Data will be provided via the survey. In this case, you should not add the corresponding building in the module.