The Sterling, which opened in 2005, has space for more than 160 covers inside with a further 200 seats available outside on terrace tables.
The £200k investment has seen both bars at the Sterling refurbished, as well as the introduction of an open kitchen to coincide with a new summer menu, which includes a range of seasonal options including a summer hamper containing picnic style dishes.
Novus CEO Toby Smith commented: “The Sterling is one of our iconic London sites in a truly iconic location.
“Following our investment in the two bars and terrace at The Sterling, we look forward to welcoming both old and new customers to one of the very best sites in the UK.”
Novus, which was founded in 1999, has 43 locations across London including branches of night club chain Tiger Tiger and Balls Brothers.
The Sterling's re-opening is the latest in a spate of annoucements regarding London's pub and bar scene, with The Morning Advertiser reporting the announcement of plans for a new site at London's St Pancras International station, and a £2.9m investment by bar and cocktail chain The Alchemist in two London sites.
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