He was dragged to his father's stall in Bilston as a toddler, and set up his first high-street bargain goods store when he was a teenager. He turned that $4.
His $4, an online property agent.
After trading a humble townhouse in Wolverhampton, West Midlands for a 15,000-square-foot-mansion in Shropshire in 2000, he told Business Insider how he did it.
Smith also shared with us some early photos from his days on his father's Bilston stall. We've mixed them with other images of his roots in the Midlands.