Reason for the move is 278 is not big enough to meet demand.
278 only has 8 or 9 rooms, and that’s not enough rooms for all the girls and all the customers.
Ginza/278 keeps growing and growing.
Busy shop attracts top girls, which attracts more customers, which attracts more top girls, which attracts more customers etc.
The new shop will have 20 rooms which might be enough to meet demand.
The Ginza shop at 308-310 will stay as is.
278 will close and a new 20 room shop will open on Elizabeth St.
So Ginza 308-10 plus the new Elizabeth St shop is around 40 rooms altogether so probably 50+ girls rostered every day which is huge.
By the way the Elizabeth St shop will not be in the CBD but actually in Surry Hills.
It should be pretty obvious by now what the exact location is; you have walked past it many times on your way from Central to Ginza or 278.