Nicole Richie puts home on the market

Nicole Richie and Joel Madden have put their Hollywood Hills home on the market.

The 33-year-old reality TV star and the 36-year-old rocker, who have daughter Harlow, eight, and son Sparrow, seven, have listed their four-bedroom, five-bathroom estate in Laurel Canyon for $3.49 million.

The lavish property, which the former 'Simple Life' star purchased in 2009 for $1.91 million, features an "extensively remodelled" living space, a pool-side guest house and a spacious kitchen, according to Variety.com.

The couple, who got married in 2010 after four years of dating, recently moved into a new $6.7 million home in Beverly Hills beside Joel's twin brother Benji Madden and wife Cameron Diaz.

Both couples are extremely close and Nicole previously claimed she was responsible for setting her brother-in-law up with Cameron just seven months before they tied the knot in January.

She said: "Yes. I'm going to take responsibility for everything! I approve of anything that's going to make Benji happy.

"I am a devoted sister-in-law. I'm happy for anyone who is happy, and I want everyone to be surrounded with love."

Joel sold his former bachelor pad in Glendale last June.