Out of interest, is that typical on both coasts? Just wondering if the river direction has anything to do with it.
Agreed. Here (Twin Cities of Minnesota) the location of lakes and rivers has much more to do with what areas are the wealthiest. The wealthiest towns are west or southwest of Minneapolis, terribly located for prevailing winds or for commuting without the sun in drivers' eyes.
In Brisbane much of the east of the city is taken up by port and airport, so not such a desirable area.