Ribot Investments has commissioned Redbridge Interiors to transform the 26,885 sq ft office on Cross Street in central Manchester with a £500,000 refurbishment.
There will be a new entrance foyer, new lift, common parts and refurbished office floors. The project is due for completion at the end of this year.
Peter Done of Ribot said: "Steam Packet House is a commanding and well-known building within the city centre, and although market conditions remain challenging, we are very confident that our fresh approach to transforming the building will be well received by occupiers."
Andrew Timms, partner at Edwards & Co, joint letting agents with OBI Property, said: "Linder Myers Solicitors recently extended their lease on three floors within the building which underlines the continuing popularity of Steam Packet House. The investment in this upgrade will certainly position it as one of the best period office buildings in the city now with the most modern facilities and chic interiors."
A total of 12,500 sq ft is available to lease and floors range from 2,200 sq ft to 3,450 sq ft.