Listing beds + baths when ADU is involved

[John Bernardo]

I have a seller listing a home by including the ADU's bed/bath along with the primary building.

The main home has 1-1 and the ADU has 1-1 but the seller has the home listed on the MLS as a 2-2.

Is this expected?

I want to make sure that when reselling in the future, the home can be appraised/valued at 2-2 and not 1-1.

Thanks in advance.