Amber, the price could vary depending on the location of the home. I would recommend you call the city and they could provide you an estimate based on a location. Also, call Nicor and Comed for gas and electric. They have entire departments that do nothing but answer questions such as this.

Amber, it would depend on the size of the property we're talking about. A 2 bdrm 1000 sq foot attached ranch is going to have completely different numbers than a 4 bdrm 3200 sq foot 2 story home. If you'd care to provide the specifics of the properties you're inquiring about, I'd love to help you.
Holler if you have questions - many thanks - Ivette