Factoring Square Footage Cost Comparisons
Zero in on "Finished" and "Above Grade" Square Footage…
Average price per square foot gathered from sold properties does not mean you can multiply the square footage of your property by those same numbers unless the comparable properties are extremely similar to yours. The price per square foot will increase as the size decreases and visa-versa. Larger duplex properties in the same general location tend to be price at a lower dollar per square foot value than smaller properties if the majority of the other features and conditions are relatively similar.
Finished and above grade square feet is a major factor in determining value. Does your duplex have a basement? Is it finished? Does it have a bedroom? Great! Does the bedroom conform to code? - is it legal? No? Recalculate the value and your initial asking price.