After looking over the appraisal they used "reconstructed income approach". 

Contractors will pushNew constructions and focus on reconstruction of the ruins.

Hello,I am considering to buy a 1936 home in Denver downtown for $450,000.  This home is mostly surrounded with roof top condominiums each selling for $550k.  The lot size is 4500 sqft. and finished space in home1500 ...

Hi all, I have a duplex in the Juno Beach area of FL. The cash flow is decent but the building is older and needs work. I'm wondering if there are any local investors with experience in new construction who would be o...

My agent tries to push business policies that cover liability, reconstruction as well as rent loss and coverage on anyone working at the property etc. 

Busy Surgeon has time to scour BP or go to RE meetup?  

Insurance Check + Wholesaling the property in current conditionPrevious rent vs Future rent restored with brand new componentsLost rent from 2-6 months of reconstruction

I don't disagree but reality is you may have bought a 3500 square foot, 100+ year old brick duplex in crime ridden part of town for $30,000 that would have a reconstruction cost estimate of $390,000 to $450,000. 

Found a house that looks like it needs to be completely reconstructed.

I am reconstructed numbers to the best of what i could find.