Yeah, funnily enough that's where I used to live, although in an old block of apartments, and I believe I know which place you are talking about. Granted the single family houses around those streets are not exactly 'low density' as they are packed in quite a bit.
My own suburb, Glebe, is just ten minutes by bike from the central business district. Yet, single family dwellings prevail at low density.
(At the light rail, some NIMBYs were rallying against an eight storey building to be put up. Ha! Twenty to forty would be better.)