Just don’t play Beethoven.
Seriously, though, if you really want an artful piece up there, I think Cartooniverse’s idea is fantastic: go seek out one of your favorite local street artists and secure an agreement before you sandblast, and then get him/her working on a piece ASAP after you do sandblast it. Or sandblast the whole thing and then draw “PAINT ME!” on one or two walls of the building or something, and hope that the artists will take note.
I can see some skill in some of the “art pieces” that have adorned Australian cities’ infrastructure over the last 30 years.
Some, but not much.
Today, my sururban train compartment had been “bombed”. The same tag, side by side on EVERY SQUARE INCH of wall, ceiling, and even FLOOR!
It was like New York City, 1982. If the Americans can beat it, so can we. Zero tolerance.
Once again, ZERO TOLERANCE.
It’s your building. You don’t have to negotiate. Graffiti-proof it, then if they come, call the cops, call the cops, and call the cops again. then when you’re done, call the cops. Other security measures are available to you as well, but I’m not allowed to post them here.
Forget the talk of “temporary art space”. Would they let you do it to THEIR house?
Go hard.
As GuanoLad said, it’s all transistory, even Banksy’s work. Hackney in London is about to wipe his stuff out.
Property rights do come out on top of “artistic” rights, really.
Sandblast it, then retain the sandblasters and rig them to proximity sensors. 
Well, to tell the truth, and despite what I posted above, this is kind of my attitude as well, but the OP didn’t quite seem to hold this attitude, and appeared, at least a little, to be soliciting solutions other than the one you’ve given (and that I would probably ultimately use myself). It’s my property, just don’t touch it is my attitude, but I consider myself pretty unhip. There are possibly more creative solutions.