@Joe Splitrock Jobs do drive growth, but to only look at one factor and derive causality from it misses or ignores lots of other things happening in an enormously complex and interrelated system. 

Commercial real estate is partially about the property value, but mostly the value is derived from potential cash flow.Start with a market rent survey.

Of course, if the two numbers are close to their asking price, you don’t have to delve into how you derived your number.

I own hundreds of properties & still do not derive the majority of my income from them.

That's why most experienced flippers use projected profit and expense numbers, not percentages.The 70% rule is nothing more than a quick and dirty way of screening potential deals, and was derived from an average over a large number of flips with a large variance of price points. 

Ask for the trailing 12months P&L, and you can derive NOI from there  (Net income-operating expenses).  

Management fee is an operating expense and subtracted from gross income to derive NOI.Gino

I cannot imagine anyone has a utility that reduces their monthly bills, and the discussion of aesthetics seems to diminish as the cost gap widens between fossil fuel derived power and solar power. 

This is derived from a model developed by the credit industry and would include homeowners who are just over-stretched with high mortgage and not enough income.

Replacement Cost values themselves are derived using appraisal software by your Agent and the Insurance Company, or an appraiser, but they are not market value estimates, they are reconstruction cost estimates.