OK, there really isn’t an issue here.
In order for parishes to do such construction, it must first be approved by the diocese. So if these plans have been approved, then they have been approved by the diocese. In order to have a perpetual adoration chapel, which is something many Churches have, the Bishop is going to know.
Also, in order to have two tabernacles, the Bishop is going to know that too. Heck, our Cathedral Basilica has two tabernacles. One in the main sanctuary and one in the sanctuary of the daily mass chapel.
NOTE: I’m no canon lawyer, but they use the word “church” and not “parish.” If a parish building has two chapels on one campus, do they consider that actually two churches? For example: my parish has a big main sanctuary with large nave for Sunday Mass and Holy Days and a daily mass chapel. Both have their own pews, altar, tabernacle, ambo, etc. Both also have names. The main sanctuary/nave has the parish name, while the daily mass chapel is called the “Chapel of Our Lady.” Same thing with our Cathedral. The daily mass chapel has it’s own name: “Chapel of Our Lady of Ransom.” Both my parish and Cathedral have the name of the Chapel outside the doors that lead directly into the Chapel from the outside.