This is how our house will sit on our block. It is not the best use of space in my opinion but we wanted this particular house more than a backyard and had trouble siting it the way we wanted for various reasons. The problematic retaining wall is the very front tier, in the original plan the two tiers are perfectly parrell. I am planning some nice looking garden in that space above the first retaining wall. It will give us some sort of depth considering the front of the house is flat with no portico for an enterance.