If the appraisal is being used to determine appropriate insurance coverage or even an insurance pay out; or possibly a court ordered payout if someone else were

If the appraisal is being used to determine appropriate insurance coverage or even an insurance pay out; or possibly a court ordered payout if someone else were to destroy a property; then it would likely be the primary weight. But lenders generally don't care so much about the cost to build, so an appraisal ordered by a lender generally won't. That being said, my recent appraisal (I was financing the purchase) said "All 3 approaches to value considered with most weight placed on sales comparison approach." I could mathematically prove this statement false, as the cost to build had zero consideration on the value. I think it is mostly a canned statement. Maybe they have a different definition of the words "considered", and "most". :)