A new gym and café are to be built in a prominent city centre business address as part of a £3.5 million programme of refurbishment works.
Colmore Plaza, which opened in 2008, will also be rebranded The Colmore Building as part of the scheme by owner AshbyCapital which acquired the 14-storey tower for £140 million last summer.
AshbyCapital said the renovation works would complete this spring and also include treatment rooms, an enlarged and improved reception area (see CGI below) with concierge services and a cycle hub with bike parking and changing rooms.
A spokesman for the firm said it was in advanced discussions with potential occupiers for the café space but nothing had yet been agreed.
Colmore Plaza, which has 310,000 sq ft of grade A office accommodation, counts Vodafone, Allianz, Investec and Grant Thornton among its tenants.
Last year, AshbyCapital secured an £80 million loan facility from AgFe to support its work on the building in Colmore Circus Queensway after acquiring it in cash.
Chief executive Peter Ferrari said: "The investment being made to The Colmore Building highlights our confidence in Birmingham as one of the UK's most important business locations.
"With the Grand Central shopping centre now open, New Street station comprehensively redeveloped, the new Midland Metro tram system nearing completion and HS2 set to reduce journey times to London to less than 50 minutes, Birmingham has a bright future.
"The high-quality enhancement works being undertaken will provide a world-class office building to respond to the requirements of forward-thinking businesses that recognise the importance of unrivalled on-site amenities and an outstanding working environment to attract the best talent."
London architecture practice Morey Smith has designed the renovation and property consultancies Bilfinger GVA and JLL are agencies for the building.