Q 3: If you cannot make a determination of significance, indicate what additional documents you may need.

The following documents would be useful in determining the level of significance:
– the listing of the Hofburg (and possibly the Garten) as an Italian Monument – I see a link in Wikipedia but the link doesn’t find the Hofburg;
– if there is a designated monument site, the boundaries of that site indicated on a map;
– the boundaries of the site Hofburggarten on that same map;
– has there been a cultural landscape report completed for the site?
– On the aerial photography it appears that the site is largely vacant, so I can infer that any cultural landscape resources are archaeological and/or remnant. Reports that identify the remaining cultural landscape resources and/or their archaeological remnants would be useful.
– Please clarify the entity that currently owns the sites, and is currently responsible for management of the site.
– Forward any archaeological reports for the site.