A duplex has 2 kitchen (refrigerator, range, etc), water heaters, HVAC or furnace, 2x the bathrooms, etc.  

Kitchen appliances rarely fail and washers and dryers are easy to replace as I mentioned in #4.

I have seen houses where the departing residents took kitchen cabinets, bathroom vanties, toilets, suspended ceiling and hardwood flooring when they left. 

Sense check on the rents of my units: 5 BR 3 bath coach house with 1 parking spot ($2,500), 5 BR 2 bath duplex down ($2,450), 3 BR + den 1 bath unit with brand new kitchen, plus parking spot ($1,450).

Al 2 bed 2 bath units with updated open kitchens and modern baths, some with deep tubs!

We updated key areas like the kitchen and bathrooms, improved the property's curb appeal, and addressed any necessary repairs to ensure the home was move-in ready.

I just stop talking and just followed and spoke when spoken to And he low balled me Mind you i have a new kitchen new bathroom room all new plumbing and electrical i gutted this house to the studs and my house is almost $40k lower if sold at this price cheaper then lowest house over here that sold 

If you are asking about a JADU, the 150’ is to be used ingress/egress only   You cannot use it to push out a kitchen (except possibly if you placed a door there).JADU have even worse valuations than the poor ADU valuations due to the owner occupancy requirement for renting.  

My husband was just looking at his roast (light was on, didn’t touch the oven) and it shattered right in front of him, with me in the kitchen behind him.

It was 90k which included new sewer line, AC unit, flooring, paint, lights, kitchen sink and counters, bathroom.