Nice looking yard. Brick must be very cheap in SA, since the entire back wall (above the retaining wall) is made from that stuff.
I've never been there. From the foliage in the pic, I imagine the weather to be pretty temperate...perhaps like the weather here in the U.S. midwest?
Oh, and I agree with the prior post -- the brick is "killer."
Do you plan to leave it solid, or is there a lintel/window or two in the works?