For years we never included w/d (tenants are hard on that kind of stuff) but the last few years we started noticing more people asking if it was included, so a few years ago we had a property that had a difficult laundry room so we included it there and it went over great - so that's another area we've added.From what I have seen, more tenants are looking for "all accessories included" than "a la carte menu" leases.

Best is to find that slight fixer with some value added. ie: CA zoning laws are allowing ADU's [accessory dwelling units] and even more aggressive laws are coming out next yearI take it even one step further and rent furnished rentals to nurses and other professionals.

Before considering building an accessory dwelling unit in California I would definitely look in into the SB9 single lot split or multi family option.

SCENERIO:Purchased an investment property in NY for $110k. 3200 sqft, 1600 sq ft basement, 3br 3bth w/ 1br 1bth legal accessory apt.

Accessory Dwelling Unit.

Buying a property with ONE mobile home as an accessory unit is next to impossible.  99% of lenders won't allow that.

The house I currently own has a basement that is prime for a house hack (accessory apartment).

Quick definitions:- Mother-in-law: simply means the basement of a home has a kitchen, separate entrance, and a dividing door or something like that- Accessory Dwelling Unit: means the city has approved the ability of the owner-occupant to rent out a portion of their home.  

If my math is right you could almost double a properties income potential by adding an Accessory dwelling unit which will probably cost less than 10-20% of the initial home purchase price.Example:SFH purchase: $400,000 renting at around $2,100-2,500 (after about $5,000 updating)Garage Conversion: 25,000-100,000 (maybe less if I can find one with a bathroom next to the garage)1 bedroom renting near Fairfield CA: $1500 monthA lot of these numbers are idealized but this could bring the Property near to the 1% rule.400,000+25,000+5,000 = 430,000(2500+1500)/430,000 = .93%Now if we get this to work and we take it a step further and add a second ADU to the backyard for 100,000-200,000 we could add a 2 bedroom and add more incometotal cost: 430,000 + 150,000 = 580,000rent for 2 bedroom: 2,000Total income: 6,0006,000 / 580,000 = 1.03 %Do these number look relatively reasonable to anyone that has more experience with adding adu's in California?

@Dakota MivshekI hear the same thing as @Lia Martinez about Accessory Dwelling Units (ADUs) in Denver ... that they're not a wise investment.