Mischa Barton is at risk of losing her California home after bank officials filed foreclosure papers.
The former The O.C. star has reportedly fallen $100,000 behind on payments on the $4.2 million mortgage she has for the property in Beverly Hills, according to TMZ.com.
Barton purchased the home in 2005 for $6.4 million and has been trying to sell the mansion since 2010.
Last year, she put the house up for rental for $35,000 a month, but she has not been able to lease it out.
Bank officials have now filed default documents, which have triggered the foreclosure process.