Savills and specialist central London agency Michael Elliott are marketing the virtual freehold for 120 New Cavendish Street, W1, at an asking price of £38m.
The virtual freehold for the 32,000 sq ft, multi-let West End office is privately owned.
The property is let to SD & Group Co, Phee Farrer Jones and Mysale Group, with 8,600 sq ft still vacant. It generates annual rent of £291,800.
The property is being alternatively marketed as a development opportunity with potential for 27 luxury flats.