The Daily Mirror revealed last week how the Watford-born world heavyweight champ had become Britain’s first official £100m boxer.
And it has now emerged the 31-year-old has sunk £10.2m into bricks and mortar, most of it in the last financial year.
Joshua’s firm 258 Investments handles his property portfolio, and documents filed to Companies House show he has over a dozen.
He spent £7.5m on pads between March 2019 and March 2020 – and his assets include a £1m home in North London and three houses in Watford worth a total £1.5m.
His fortune grew by £60m in a year after bumper fights against Andy Ruiz Jr.
Documents for his firm Sparta Promotions show he has £109,109,481 in the bank.
And Joshua, who holds three of the four top heavyweight belts, is set to pocket another £100m in a unification bout with rival Tyson Fury, who has the other belt, later this year.
His nearest competitor in British boxing wealth is ex-champ Lennox Lewis, 55, worth £90m.
In a 2017 GQ chat, Joshua told of wanting to be a billionaire, saying: “It’s hard but it’s possible.”