We feel this coverage is important for two reasons. One reason is we do not send out professional reconstruction appraisers to every house. Instead, insurance companies use in house software that helps determine reconstruction cost on your house using things like square footage, construction type, location, year built, etc. to come up with a value. These programs are usually very accurate but nothing replaces the accuracy of an in home visit with measuring tape and details of the type of amenities in the house. The Extended Dwelling Coverage endorsement helps make sure that if for some reason the calculations on the house are a little off, there is still enough insurance there to replace the house to its original state.
The second reason we encourage this endorsement is for catastrophe situations. Let’s say a tornado wipes out not only your house but two other neighborhoods worth of homes. Every builder and building supplier in town will be in demand. Economics 101 will tell you that if demand goes up and supply is the same, then prices are going to rise. That home that only cost $200,000 to rebuild just got a lot more expensive but if you have the Extended Dwelling Coverage on your homeowner you would be in a much better situation.
One thing to note about this endorsement, you can’t use it to underinsure your home. In our example above, you can’t insure the house for only $160,000 and add the 25% Extended Dwelling Coverage (which would put your total insurance at $200,000). That is not the intent of the coverage. The insure companies will use their software to figure out a good estimate of the cost to rebuild your house and you would have to have it insured for that amount in order to add the coverage.