The average sold price of a condo in downtown San Diego in 20018 gained just 1% over year end 2017.  This is just comparing sold condo data reported in the MLS.  Note the brand new Pacific Gate building which is one of the most expensive building in downtown did not report any of their 175+- sold units in the MLS sort of making a higher appreciation rate than reported in my graph below which only includes resales.  Note the new Pacific Gate building also caused a lot of condo owners in existing buildings to put their condos on the market for sale when they moved to Pacific Gate thus creating more supply and some downtown ward pressure on prices as the demand side did not spike or any particular reason.