It's one of those stolen Milliband policies.
Poor guy, didn't stand a chance because of his funny face but thankfully the Tories are enacting his entire manifesto piece by piece.
Interesting take on this policy -
We're spending £3.2bn on a stamp duty break to get 3,500 more first time buyers on the property ladder.
— Jo Maugham QC (@JolyonMaugham) 22 November 2017
That's £924,285.71 each.