Are 4 bedroom SFRs Practical?

[Derek Luttrell]

Hi All, 

This weekend I went and toured a listing that has a 4 bed/3 bath main house (1800 sq ft) that comes with a 2 bed/1 bath coach house on the lot. The main house is owner-occupied, and the coach house is tenant-occupied for $850/month. 

This town has a population of about 30,000, and the stats I've found show that 46% of adults there are renters. It's on a street of primarily MFRs, but does anyone out there have 4 bedroom properties in their portfolio? Looking at rental comps, there is only one other 4 bedroom available in the town right now, and it is asking $1600/month. I just can't tell whether or not it's too much house to be used as a rental.