Greater Birmingham Chambers of Commerce has relocated to its new HQ after more than 60 years in its previous home.
The business body has moved to 54 Hagley Road in Edgbaston, a short walk from Chamber of Commerce House which it opened in 1960.
It said the new, seventh-floor location provided a contemporary space with a focus on collaboration and a flexible, town hall-style area capable of hosting small events.
As part of the move, the chamber has donated material from its archives dating back to 1813 to the Birmingham and Midland Institute.
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The chamber announced the move in May amid plans by landlord Mercia Real Estate to renovate Chamber of Commerce House and construct two new apartment blocks at the site.
Birmingham-based Mercia acquired the complex in Harborne Road in 2020 for £4.75 million.
Chamber chief executive Henrietta Brealey said: "We are delighted to officially open our new HQ.
"The chamber is here to unleash the potential of Greater Birmingham's businesses and our new facilities have been designed with that aim in mind.
"We have been proud to work in partnership with our members every step of the way. This move marks a key milestone in a year of significant change for the chamber that's seen major steps in our digital transformation programme and brand repositioning alongside expansion of our work to support and champion local businesses.
"It's also our 210th year in business, for business. We look forward to celebrating many more in our new home."
Chamber of Commerce House was designed by renowned Birmingham architect John Madin and has long been the subject of speculation over its future after a Certificate of Immunity from Listing was granted against it by the Government in 2016.
The chamber, which has around 2,500 members, was established in 1813 and occupied premises in New Street from 1916 until the move to Edgbaston in 1960.
Chairman Greg Lowson added: "The move to new premises at 54 Hagley Road marks an exciting new chapter for the chamber and means we can continue to build on the widespread support we've been able to provide for businesses of all types and sizes across the region.
"Our chamber has changed and modernised a great deal in recent years and our new facilities will enable us to carry on evolving as a dynamic and innovative organisation that is always striving to deliver the best possible support for our members and the business community as a whole."
Property agencies Avison Young and Colliers, fit-out firm Rhino Interiors, relocation specialist Restore Harrow Green and law firm Squire Patton Boggs all assisted with the move.