The reality star, who was accused of cheating on her, is settling into the six-bed home.
The detached 5,700sq ft mansion also features a huge garden coach house which Tommy, 25, can convert into a gym to train for his next fight.
A source said: “Tommy was heartbroken when Molly-Mae dumped him and maintains he’s done nothing wrong.
“But he’s had to accept she doesn’t want him in her life.
“Renting this property is the first step for his new life.
“The house is stunning and he is familiar with the area so he’s getting it furnished.”
Earlier this week, Tommy shot a video from the house in Knutsford, Cheshire, after an early-morning run.
He said: “That has been a nice four-mile run to start the day off. I feel incredible.
“The best way of therapy for me is getting out first thing, clearing your head, going on a nice long run, fresh air. There’s nothing better.”
Love Island stars Molly-Mae, 25, and Tommy broke up last month after five years together over claims he cheated with a Danish girl on holiday.
Molly-Mae gave birth to their daughter, Bambi, in January 2023.