The Colorado home where notorious murderer Chris Watts killed his wife before also taking the lives of his two young daughters is still on the market … and the asking price has been cut a fourth time, TMZ has learned.

The 5-bedroom residence in Frederick, CO — which was heavily featured in the 2020 Netflix doc “American Murder: The Family Next Door” — has been on the market for 156 days, per Zillow.

Just this week … the realtors slashed a fourth time … for the actually very nice home … to $699,000, per records.

TMZ broke the story that the home was initially purchased after it went into bankruptcy following the grisly events of 2018 … and the current owner — who shelled out $600,000 — has been trying to unload it since April.

In fact … on April 24, the price was slashed from $775,000 to $750,000. Then on May 30, it was lowered to $749,000 … fast-forward to July … the realtors slashed the price to $724,000. At the beginning of July there was an offer made but that fell through.

The sticking point might be the stigma of the horrendous case … Chris is serving five life sentences behind bars and confessed to killing his spouse, Shanann, and their 2 little girls Bella and Celeste, after all — or it might be that other homes in the area have sold in a much lower range … from $435k-$475k, per Zillow.

This wouldn’t be the first time a murder house was put up for sale despite the gruesome past … just take a look at the JonBenét Ramsey home or the Menendez brothers’ mansion.