Most successful property investors would say %22yesterday%22!! If you focus on short-term investment you will see lots of fluctuations in the market which is a natural result of the changes in the economy. It will have boom and bust cycles, it will have hyper-growth years as well as having years of stagnation, where it grows very little and potentially even declines by a few percent in that short term period.
But looking through history, there has never been a circumstance where the average property price in this country has declined over a medium or long term period of seven years or greater. Mass media often cause us to have fear. Fear leads to procrastination and procrastination causes people to miss opportunities.