I'll admit, I never bothered to properly measure the space, so the lease very clearly said "approximately" for square footage.

I HAVE TALKED WITH CHINA COMPANIES AND AMERICAN COMPANIES AND IT'S THE SAME PRODUCT , SAME HOUSE SUQARE FOOTAGE BUT AMERICAN COMPANIES ARE CHARGING WAY MORE.

Using a formula you can multiply the cost of repair per sq feet by sq footage of the house and you will get a rough estimate of the repair costs.

$1025000 house vs $650000 house are in same track, same lot size, main SFR same square footage?

A drywall guy once told me that a quick way to calculate a whole house worth of work is to multiply the living sq footage by 3.5 then divide that by 48 sq ft ( 12 ft drywall ) and then multiply times per sheet cost.This is probably more applicable for new construction or full gut jobs.

The previous owners had already done some renovations, like most Levittown houses, but Mike totally refinished the placed and added some more square footage.

They can look up the sales for last 6 months in any area and then from those sales pick out the houses with similar square footage, same bed/bath count, and then average those sales out and that's your ARV.Florida can be rough. 

Doesn't appear that turning basement into livable square footage would be worth it at all. 

This house was already priced about $30k over comps, if based solely on br/ba count and square footage, but it was at the crest of a hill, had mountain views through big bays of windows and views of the Denver skyline.

I know nothing about the area, but that's a tiny square footage for a 3 bedroom.