Edison: Comments

his address is 1625 Casale Rd. in Pacific Palisades. surprisingly easy to confirm.

Back then the house was owned by Peggy Lee's longtime manager Ludwig Gerber.
Paul Simon rented the same house shortly after Harrison. During Simon's time there he wrote 'Bridge Over Troubled Water'.

Zillow is an aggregate real estate site and not always reliable info (I know this from direct experience). It's also possible this is a brokered private sale due to the owner, so things like the MLS # may not be publicly available. Not sure, but the home is on the market;
http://www.curbed.com/2016/3/8/11180312/frank-zappa-house-kickstarter-documentary

UPDATE: in March of 2016 the Zappa family trust listed the property for sale at $9,000,000, widow Gail Zappa having passed away several months earlier at age 70. Proceeds from the sale of the home are to fund a documentary about the infamous 20th century composer and guitarist, helmed by director; Alex Winter.

Among several Philadelphia locations used for the 1983 comedy; 'Trading Places' Rittenhouse Square provided the location for the scene where we meet Eddie Murphy's character; Billy Ray.