Here you can see the prep for getting services into and out of the house. You can see the gas line and meter. This will provide gas to the kitchen range and to the living room fireplace. The clothes dryer and the microwave are vented out, so look closely and you can see the kitchen vent for the microwave oven. The AC compressor will be placed outside of the house. This is typical to cut down on noise inside.
Click on any picture below for a larger view.