Khloé Kardashian is worried about leaving her brother in charge of renovations at her new home.

The 'Keeping Up with the Kardashians' beauty purchased Justin Bieber's former mansion in Calabasas, California in March and is set to move into the lavish property with her younger brother, 27, once the redecorations are complete.

But the 29-year-old star admitted she is worried about Rob managing things while she is shooting her new spin-off 'Kourtney & Khloé Take The Hamptons' in the exclusive enclave in Long Island, New York.

She wrote on Twitter: ''Having my brother oversee my construction at our new house while I'm in NY is a tad scary. I'm way too controlling lol (sic)''

Despite her fears, it seems Khloé can't wait to move back in with Rob, who previously lived with her and her now-estranged husband, Lamar Odom, before their split in December.

She tweeted: ''I miss my best friend RobKardashian (sic),'' and shared a photograph of them together when they were younger.

A source previously revealed that Rob, who is reportedly battling depression and has gained more than 60 pounds, was planning to live with Khloé again, as he thinks she can help him get his life back on track.

The insider said: ''Living alone isolated him. Rob needs to be around people who love him.''

Meanwhile, Khloé appears to be very happy after returning from safari in South Africa with her new boyfriend, French Montana, and their friends.

She shared a photograph of them in a jeep on Instagram, with the caption: ''Such a blessing!!! Great memories with great people @frenchmontana @spifftv @miguelunlimited yes we really went on Safari!!!''

The rapper, 29, also posted a picture of himself with a giraffe on his profile, writing: ''Sometimes you don't know how blessed you are #grateful #southafrica (sic)''