In Washington state right off the I 5 corridor .. my land partner got into contract for 65k ( infill lot that could handle a duplex or two units) put it on the MLS ( which is how you get top dollar) sold in 3 days multiple offers for 110k netted us 100k so 35k net profit .. which I have a formula to split with the acquisition partner. ( PS its always more to them than me) but bottom line if you can fill your pipeline its easily a low 6 figure to mid to high 6 figure when you have a capital partner like myself.. or someone else.. does take a fair amount of capital though usually 500k to 1 mil in cash to make that kind of money so thats where we come in.

Zestimate just looks at the cold, hard facts......square footage, price per square foot, etc. 

One year ago I purchased my first rental, house hacking a 4000 square foot duplex.

On a 550k purchase w/ a 200k remodel, am I paying the down on 550k or 750k?

New build ADUs are running $250-350 per square foot.

For example, if you are building an ADU, you want to make sure there is enough square footage in the lot, so you can filter by x sqft and above on the software.

Also as per WA state law landlords must list screening criteria. https://apps.leg.wa.gov/rcw/default.aspx?

What Bruce said, I just finished one for a customer in Arizona and it was north of $400 a square foot.

Several years ago, you could find a rough house in 35810, 35811, 35816, or 35805 for less than 100 a square foot, rehab it, and rent it for cash flow.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.