ADUs and ROI Figures

[Gary F.]

Aloha BPers. For those of you who've either built an accessory dwelling unit (ADU) and then sold, or have experience buying a property with an ADU, did those properties see a good ROI? For example, if the ADU cost $150k to build for a one-bedroom unit, did the property sell for at least that same $150k or more than comparable properties without an ADU?

[Ryan Heywood]

@Gary F. I'd love to know this too, currently weighing the value of an ADU add to resale. Going to give this thread a little bump. Maybe someone can point us towards a good source of info.