The Devonshire, which opened in 2007, is one of three pubs the company owns in London; the others are the Narrow in Limehouse and the Warrington in Maida Vale.
A spokeswoman for GRH confirmed that the Devonshire had closed. "The Devonshire pub has not been meeting our expectations for a while and we have taken the decision to close it while we consider future plans," she said.
"There are a number of options and a final decision will be made in due course."
Last year, GRH was forced to deny that the Devonshire was up for sale after it appeared in the "for sale" section on the website of property agent Restaurant Property.
The closure of the pub comes six months after the departure of Mark Sargeant, who left GRH last November and was instrumental in the group's roll-out of its three London pubs.
GRH's most recent accounts revealed that the company made a loss of more than £4m in the year to August 2008.
By Kerstin Kühn
E-mail your comments to Kerstin Kühn here.
If you have something to say on this story or anything else join the debate at Table Talk - Caterer's new networking forum. Go to www.caterersearch.com/tabletalk
Looking for a new job? Find [your next job here](http://www.caterersearch.com/jobs/default.aspx) with Caterersearch.com jobs