Penny Blacks - a new wine and real ale emporium - is to open its doors at Birmingham's Mailbox later this month.
The company is a sister firm to Bar Epernay, which also has an outlet in the Mailbox development.
Alan Chatham, managing director at The Mailbox, said yesterday: "Finding the right occupiers for The Mailbox has been what has made the whole thing so special.
"The waterside location and the eclectic mix of bars and restaurants on offer has created a setting unlike anything else in the
Midlands and continues to attract a cross section of the most discerning diners.
"This has resulted in four of our tenants deciding to take a second unit, adding to our diverse offering, and continuing a formula that will keep on reaping the rewards for both The Mailbox, our tenants and their customers."
In addition to Penny Blacks and Bar Epernay, other double ventures include the popular Spanish tapas restaurant, Bar Estilo and sister Mediterranean eaterie, Red Peppers; the Paris restaurant and Italian caf> bar and restaurant Fino and the contemporary art store The ArtLounge and its recent memorabilia store - Hall of Fame.
David Charalambous, owner of Bar Estilo and Red Peppers, said: "Bar Estilo is the most successful restaurant in our entire national group and so following its popularity we decided to open a second venue in the city. Red Peppers opened in March 2004 and has exceeded all our expectations."
The Mailbox currently has more than 50 tenants including over 30 designer retail stores, the largest selection in one single location outside of London.
Some 2,000 sq ft of retail space and 8,000 sq ft of restaurant space remains to be let in the 1.5 million sq ft £150 million building.