Cafe Rouge will be coming to the Mailbox as part of a major expansion of the restaurant chain.
Parent company Tragus Holdings made the announcement yesterday after unveiling a 31 per cent rise in annual profits to £12.3 million.
Plans are in place for a total of 36 restaurants to be added to the 82-strong estate of Cafe Rouge over the next three years.
The Mailbox restaurant will be opening in the unit currently occupied by the Charles Church marketing suite - the estate agents are moving to offices at their Holliday Wharf and Quartz developments.
A spokeman for Tragus said they expected the restaurant to be open by spring 2006 and that there was a signinficant chance that other sites would open up across the West Midlands next year.
Tragus, which also owns the Bella Italia chain and brasserie brands such as Abbaye and Mamma Amalfi, hinted that it would not stop there as "ample opportunity" existed to double the size of the Cafe Rouge portfolio in the UK.
Glasgow, Liverpool, London and Manchester are also due to have new restaurants this year and Tragus said it was interested in buying rival chains.
More than 12 million meals are year are served up by its 160 sites in the UK and Tragus said nearly half of these restaurants reported record takings during the year to May 29 when like-forlike sales increased by 10.7 per cent.
Although sales at its 17 sites in the capital rose only 0.3 per cent in the first quarter of the new financial year,
Tragus indicated diners elsewhere in the UK had not lost their appetite as the like-forlike figure lifted 7.7 per cent.
Chief executive Graham Turner said the year was an excitable and profitable one for Targus.
He said: "I am delighted that the financial year has started with continued momentum.
"As with many businesses we are experiencing increases far in excess of inflation for rates and energy costs.
"However, we have continued to see an improvement in trading across the estate since June."
