The average price of a single-family home in Calgary has dropped for the third consecutive month and in October was more than $53,000 less than it was in July when it hit a record $505,920. + z6 k$ N5 \, G& Z% H! b1 @5 u 4 d0 t9 k4 N3 A$ f, M0 _: S( Whttp://www.canada.com/calgaryher ... ee7aa2f&k=35625