| 3 March 1961 | | Scheme accepted | Dean of Guild Court has approved plans for first stage of 17-storey development by the West Nile Investment Co per Builder p432 |
| 31 March 1961 | | Scheme accepted | full planning permission granted for erection of a 200 ft 17-storey office block with two shops at ground level; the centerpiece of a more than £1m building development including 58-car underground car park, a three-storey department store on the corner of Renfield Street and lorry loading bays in Renfrew Lane (for 2 shops in base of office tower and parade of 8 shops between the tower and the department store) per Builder p632 |
| May 1961 | | Build/construction | construction to begin in May per Builder p585 |
| 3 November 1961 | | Scheme accepted | planning committee approved amended plans for development by Nile Investments Ltd per Builder p851 |