Yes, but if you had a plot of land on which to build a house, and were concerned about its carbon footprint, wouldn't you build a compact, easily insulated cottage and plant some trees?
The house being built up the road is vast (looks like at least 5 bed), and takes up almost all the plot - just a 10 foot wide paved strip behind it, the same down one side, and a car turning area on the other, outside the attached eco-double garage. Has a heat pump though.
Regards Richard