The four storey complex, which the club hopes will increase commercial revenues whilst it continues to explore option for a new stadium, will feature corporate hospitality and offices as well as a shop, museum and café.
The Toffees felt that an office move in the middle of the current season was not ideal timing. Everton spokesman Ian Ross said: "This has been the acknowledged target date for some time as operationally it would have been difficult to open it mid-season. All of our partners are happy with the current timetable.
"This is a complex project involving several partners which when completed will deliver a prestigious multi-use building, one which will unquestionably benefit both club and supporters."