The data collection websites like awning, can be unreliable and don't factor in the specific amenities/upsells that a specific rental has. 

@Tom PubinsGood question.Depending on what kind of access to information you have, and if you use any software to find property data, you can find buyers in the given area, what they have purchased, etc.

Some of them do offer data exports, but you'll have to do your own research on that.

Then their sq ft occupancy might be say 90% occupancy.Without seeing the actual data I can’t tell.  

., this is all market and property driven.  

Septic sewer.Market Data: New constructions in the vicinity are selling for around $750K.Looking for your quick, back-of-the-envelope insights on what might be a reasonable ballpark offer for this land. 

But if one wants to get other rental market data (day to rent, average rental vacany) what is a good source? 

Advani stresses the importance of market research and data analysis in identifying emerging trends and opportunities.

D-U-N-S, which stands for data universal number system, is used to and maintain accurate and timely information on +265M global businesses."

I see the chart but it doesn't have Reno on it and you don't mention any numbers for Reno to compare with that chart.This is National macro data comparing regions.