Actually 2013, based on what Rightmove has listed.
Ricky is one of those places that everyone thinks is rich-person central, for some reason... I think because you have things like the Royal Masonic school, the mansions of Loudwater, and other big money things, including fairly affluent places like Chorleywood surrounding it. I imagine a 6-bed detatched at £3mil would somewhat skew the average price compared to a 2.5 bed ex-council house?
You also have a few suburbs and sub-suburbs like Mill End, where the house in question was. That was generally regarded as a scum-ridden dive, full of working class criminals with cars up on bricks out the front... and it was pretty accurate, to be fair!
Looking on Rightmove myself, it seems their house price/valuation soared up to £195k, dropped £115k, and is now back up to almost £300k!!
However, someone has done a lot of work inside, too - New kitchen, new fireplace, new staircase. Outside is about the same... fewer trees, but looks much cleaner, too. Can't see any bricked-up cars in the neighbours' front gardens, either.