From Philly's best gossip columnist, Dan Gross in the Daily News:
Why were real estate mogul Allan Domb and restaurateur Stephen Starr recently spotted together on a train to Washington, DC? Starr this afternoon told us he was looking at a potential restaurant space there and Domb, who "has a minority interest in Starr Restaurants," accompanied him as he may want to invest in the DC location as well.
The pair have been working together for a few years as Domb's real estate company owns the Barclay, which houses Starr’s Barclay Prime and the Parc Rittenhouse which contains Starr’s French bistro Parc. Starr says Domb owns a bigger piece of Barclay Prime than he does in Starr's other restaurants in Philadelphia, New York and Atlantic City. He declined to discuss specific ownership percentages and Domb has not returned a request for comment this afternoon.
As for the concept for the possible DC location, Starr says it "could be a version of Parc."