For all the tumult about how hard it is to buy a house, this savvy property investor has done it at just 21-years-old.

Lettuce and mayonnaise sandwiches have paid off for Llewely Grifiths, who has just bought his first house at the age of 21.

The architecture student picked up the keys to a two-flat property in the Wellington suburb of Northland, opposite the Botanic Gardens, on Wednesday.

He can’t afford to move in yet – that will have to wait until he finishes studying. But he and the friend he went into partnership with are now landlords to two young families. Check out the full story on Stuff.