ADU Appraisal Value in San Diego

[Peter Amador]

I am building an ADU on one of my rental properties and looking to maximize the appraisal value. The ADU will not be attached to the primary home and will have a separate entrance with parking.

How have appraisers been valuing stand-alone properties? For example, if comps for the primary home are $500 sq ft, are ADUs in the San Diego market being valued at $250 sq ft? I believe a duplex comp is most appropriate but I am trying to get an estimation on what the appraisal could come back under worse case scenarios. Any insights shared about ADU appraisals would be greatly appreciated. Thanks!

[Brian Larson]

Good luck.  From the posts that I have read on BP and Facebook, appraisals in California are all over the place.

In my personal situation, they appraised the ADU as an addition, even though it is detached and above a garage. And despite the fact that there are multiple duplexes on my street. It was pretty bad. I hope you have a better experience.