Bobby Flay's Flatiron Southwestern Mesa Grill has been dishing out the celeb chef's grub since 1991, which is a pretty epic span in restaurant years. Well, this morning we got a tip that the space that houses the eatery is on the market, and we sniffed out the listing above on Prudential Douglas Elliman's site. While Mesa is still in operation, the 4,000 square foot space is being repped by Faith Hope Consolo. Of course, listings like this don't necessarily mean the restaurant is definitely going to close, and it very well may be moving to another location, but if potential operators are coming in that's never exactly a good sign. Stay tuned for developments.