Imagine finding and buying your perfect piece of property 5/10/50 acres of the most pristine land you've ever seen, you start to develop the plans to put your custom home on, and you realize, oh shoot, we never got that perk test at the realtor mentioned. We better get that done, perk test comes back, it failed, the water does not absorb fast enough or maybe it's absorbing too fast, which means you can't put a septic system on that land. Now you might have a piece of property that you cannot build on. You think, that's fine, we will just sell the property.