So what this shows you is zillow's data scatter can be significant, and don't assume it is up to date whatsoever.  

They're big and spectacular, but it's not like classic little city roaches where you see 100 scatter when you turn on the light, I eliminated those when we bought 20 years ago. 

The 1st ring north suburbs have C-class scattered in.

Of course you need to have an idea before hand so your searchs are not too scattered. 

There's lots of info about this scattered throughout BP, but if you'd like to get the low-down and get a solid foundation in cost seg, check out the this link to BP Marketplace: https://www.biggerpockets.com/forums/521/topics/686210-want-to-learn-how-to-lower-your-taxes?

I've always done tear offs and never done a 2nd layer of shingles over existing shingles but I might do that some day in a jurisdiction where it's allowed.If there is no capex next would be insurance.Next would be prepwork for the next tenant when one moves.If there is no capex and no one moves in a particular year next might be mileage for me because mine have been scattered and I enjoy visiting them to fix small things that don't require a licensed plumber or electrician and sometimes I even like to visit when those trades are there.After that on my Schedule Es it's probably lawn care related expenses.

Also for those that hire PMs to manage the properties, the PM fee is also directly correlated to the property size and it does make a big difference when the properties are scattered.

There use to be at least 10 absolutely massive assembly plants scattered all around the greater Peoria area.

You won't find any MF properties along Camelback in Scottsdale, but there are some scattered properties in the greater Camelback East Village area of Phoenix.

Laundry usage is scattered, you are correct.