PRUPIM is set to buy the 92,500 sq ft Alder Castle at 10 Noble Street, EC2, from Aviva Investors.
The UK fund has placed the building under offer for a price thought to be below the £65.6m quoted by selling agent Jones Lang LaSalle, reflecting a 6% yield.
The deal comes just over a year after Aviva bought Alder Castle from Aberdeen Immobilien for £62m, a yield of 6.54%.
All parties declined to comment.
jack.sidders@estatesgazette.com