(CNN) Chris Watts' multilevel Colorado home is being foreclosed and put up for auction -- for any buyers willing to look past its tragic history.

The house in Frederick, where Watts killed his pregnant wife and two young daughters in August, will be up for public auction on April 17 at the Weld County public trustee's office in Greeley, according to paperwork filed last month.

The public trustee filed a notice on December 18 that the five-bedroom, 4,177-square-foot home is being foreclosed because mortgage payments have been missed. The house was bought in 2013 for about $400,000

The mortgage's outstanding principal balance is about $349,900, the trustee's notice says. Real estate website Zillow.com estimates the home is worth about $510,000.

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