A survey by the Royal Institution of Chartered Surveyors (Rics) shows buyer demand hit an 8 year low and it's expected that house prices will drop as a result over the next 3 months.
How long this dip will last is unknown. It'll depend a lot on what happens over the next few months in terms of Brexit.
This could be a short dip simply because the markets are unsettled at the moment, and people are cautious about making long term commitments in such circumstances. It could be longer if Brexit starts to go badly. Time will tell.