Tamara Ecclestone lives in 57-room house - but only uses four of the rooms on a regular basis.
The 32-year-old socialite admits there are huge parts of the London abode she shares with husband Jay Rutland and their daughter Sophia, two, she never enters but insists having so much space is good for when they have visitors.
She said: "There are definitely rooms I haven't been in for ages. I don't use the swimming pool and I haven't been in the bowling alley for a long time. I generally just use four rooms. But I like to have the space for when people come round."
Tamara has never spent time away from Sophia, who she calls Fifi, and insists she doesn't experience "maternal guilt" because she knows she does everything she can for her little girl.
She admitted to You magazine: "I live in a bubble. A Fifi bubble. I look after my child and I have my business (hair-product line, Show Beauty). I don't have time for anything else...
"I can give [Sophia] anything she wants, but I know the biggest gift is nothing to do with money, it's just to be with her. I chose not to have a nanny; to be the one changing her nappies, taking her to the park, feeding her and putting her to bed. I don't judge myself except as a mother and I think I'm doing a good job as she is happy. I don't have maternal guilt because I have nothing to feel guilty about."
The brunette beauty is already feeling anxious about sending Sophia to school and has even considered home educating her.
She said: "I'm terrified. Part of me wants to home school her, but I know she has to go. I never want her to be hurt, but it's going to happen. Life is cruel and she will have to learn to cope. It breaks my heart."
And Tamara is "definitely" planning to have more children in the future.
She said: "My ideal number is three. I had a caesarean section with Fifi because I was terrified of the pain, but next time I want a natural birth. I want to enjoy having just Fifi for a while longer, but there will definitely be more. Being a mother is the best thing that has happened to me and I'm doing it as well as I can."