Multi family cost per unit or per bedroom...?

[Ryan Swan]

I am analyzing a potential multifamily property that has a mix of dissimilar unit types (a combination of 1 and 2 bedrooms). It's easy to compare the per unit price of two properties that all have the same unit type (all 1 bedrooms or studios etc), but how do you make the analysis when two properties don't share all the same unit types? Comparing a 2 bedroom "unit" to a 1 bedroom "unit" seems like an apples to oranges comparison. Is it practical to compare cost per "bedroom", or is that not a common metric?