Value of adding a half bath

[Don Pham]

Hello all, in theory it seems like adding a half (or whole) bath to a property with 1 bathroom as an outsized effect on rental values. How does this pan out in practice? Obviously it depends on ease and therefore cost of adding a half/whole bath as well as what's common in the area, but is it a common target of opportunity? By extension, what about the value of a full bath over a half bath? I'm primarily concerned with increasing potential rent, but secondarily home values as well. Thank you all in advance for your counsel!