Ashton Kutcher is ditching the bachelor life ... He's put his sick Los Angeles mansion up for sale ... we're told because it isn't a good place to raise a baby.
According to our sources, Ashton pocket listed his Lake Hollywood Estates home for $12 million. He bought the place in 2012 for $8.455 MIL, snatching it up as Justin Bieber was eying it.
The home is 9,385 sq. ft. with five bedrooms and eight bathrooms. It also has a colorful history ... it was the location of one of many "swatting" pranks.
Ashton and fiancee/baby mama-to-be Mila Kunis quietly scooped up a $10.215 million home in the Beverly Hills Post Office area -- a modest 7,351 sq. ft. with three bedrooms and four baths.
Sounds perfect for a new family.