The number of residential properties sold for £1 million or more in England and Wales has increased to over 70 times the level seen in 1995.1 Last year, 1.6% of all property sales were for £1 million or more.
The Chilterns had Less than 0.01% of £1million homes in 1995
0.12% in 2005
0.71 in 2015.
information from The Office of National Statistics See link http://visual.ons.gov.uk/million-pound-properties/