I took this piece out of pwd72s thread on the housing market.
https://forums.pelicanparts.com/off-topic-discussions/1093598-interesting-piece-housing.html it states;
"soaring lumber prices over the past 12 months have caused the price of an average new single-family home to rise by $35,872, according to the National Association of Home Builders."
This piece indicates the average construction cost of a home is $248,000.00 as of 2017.
https://homeguide.com/costs/cost-to-build-a-house
Replacement cost/insurance value $248,000.00, add $36,000.00 increased cost due to lumber new Replacement cost is $284,000.00.
$284,000.00 x 80% = $227,200.00
Keep in mind this example and the article account for increased lumber costs only, other martials are also on the rise as is labor. In my market the $155.00 per square foot cost would be builders grade. Our average is closer to $225.00 per square foot.
Have your agent run a Replacement Cost estimator.