Agents on the redeveloped 80 Mosley Street are on course to pre-let around 50% of the building before completion in the first quarter of 2008.
Leeds-based Bilsdale Properties, controlled by the family trusts of the late steel magnate and Blackburn Rovers FC backer Jack Walker, acquired the original four-storey building from Royal London and set about more than doubling its height.
The resultant 32,000 sq ft, nine-storey offices are being offered for rents from £30/sq ft at the top to £25/sq ft lower down. Floor sizes range from 4,000 sq ft to 2,000 sq ft as it tapers towards the top.
Rob Yates, director at DTZ, joint letting agent with Knight Frank, said: "Given the interest we've had so far I would expect four floors to be committed to tenants by the time of practical completion. Conservatively, we will definitely do deals on the top two floors and have strong interest in the two below.
"The scaffolding is being taken off the building unveiling a stunning new office building, a far cry from the monstrosity that stood on the site previously.
"The building provides small to medium sized occupiers a genuine opportunity to acquire single floors of Grade A accommodation, a product that has been in short supply in Manchester's core."