Moyes drove into the vast complex in a sponsored Chevrolet at just after 8am on Monday morning, stopping briefly to wait for security barriers to be raised before heading into work.
It marks the start of a new era for the Red Devils after Ferguson ended his 26-year tenure in May.
In a sign of the changing nature of life at United, within minutes of Moyes' arrival the club were confirming another regional partnership - this time with leading Thai telecommunications company True Corporation Plc.
As True will be an associate match sponsor for United's opening tour match against Singha All Stars in Bangkok on July 13 - Moyes' first in charge - it will be part of a significant day in Red Devils' history.
Before that, Moyes has a few issues to deal with.
Although the majority of his players are not due in until Wednesday, it is thought Moyes plans to talk to Wayne Rooney on Tuesday amid speculation the England striker has decided his future lies away from Old Trafford.
Moyes would prefer to keep the 27-year-old and but if Rooney is set on leaving, it will be interesting to see whether he makes the tour squad when it leaves for the Far East on July 10.
It is also assumed the former Everton boss will return to his old club to make another bid for England defender Leighton Baines, which in itself is a heavy hint that Patrice Evra may be destined for Monaco.
In addition to Baines, Barcelona midfielder Thiago, PSV's Dutch international Kevin Strootman and Benfica defender Ezequiel Garay have all been strongly linked with a switch to Old Trafford.