Dan Siddall has been a real estate broker in the Boulder area since 1983. In that time, he has acquired considerable knowledge of the building and energy systems that comprise residential property. This knowledge is extremely useful for a home buyer in determining the carbon footprint they can expect to create living in a particular home. Dan uses alternative transportation whenever possible, and it is not unusual to see him show up for an appointment on his bicycle. Eco Broker certification to be completed by April 2008.