Isn’t building green more expensive than building with traditional materials?

The good news is that finding green materials is becoming easier every day, and the misconception that going green is unaffordable is simply just not true. Costs are coming down for a lot of these materials. Some green materials are less expensive than the standard stuff that we've used for years. For example, gravel driveways are half as expensive as concrete and they use far less embodied energy to produce.