Tamandua
Well-Known Member
I did some reading on other sites and there's some conflicting information. For example, this site says "In December 1980, the Psycho House set was seen being dismantled. It next appeared painted pink in the 1981 Chevy Chase comedy 'Modern Problems' where the house appeared to have been transported to the beach.", but another site seems to confirm that the house in that movie was a replica.This is what I found.
the studiotour.com - Universal Studios Hollywood - Backlot - Psycho House
Information about movie studio.www.thestudiotour.com
At this point, I doubt it's the same house. At best it's a ship of theseus with all parts likely replaced, but more likely probably a complete remake.