I definitely think something can work in this space. As someone who works near this area and deals a lot of with GoA/bureaucrats and the stakeholders that go along with that, I can say that there are precious few options in the area for business lunches and private meetings. If someone designed a space that offered speedy (but tasty) breakfast options for the 'crats to grab, some nice private tables for lunch (and ideally some private rooms) that alone would already bring in a ton of business. There are hardly any breakfast joints in the area offering good coffee and tasty, quick meals. There are hardly and good 'business lunch' places outside of the Marc and it, although delicious, doesn't offer a lot of privacy for conversations you don't want overheard.
You could also make a killing during certain parts of the year hosting receptions related to GoA business. Currently virtually all of that goes to the Matrix and they're charging an arm and a leg.
And finally I think if you have a nice space you could also attract general dinners to this space. If you offer quality meals in a beautiful space, people will go pretty far. And this isn't far, or in a dodgy area.
I think all this space needs is someone with a bit of a vision (and of course a reasonable lease rate!)