We are not sure how we never heard this before, but today there is an article on PhillyVoice.com about the Netflix documentary series Conversations with a Killer: The Ted Bundy Tapes that mentions that Ted Bundy lived briefly with his grandparents in Lafayette Hill.
According to the book, The Bundy Murders: A Comprehensive History, he lived on South Warner Road in Lafayette Hill for a month prior to starting at Temple University in January of 1969.
To attend Temple he moved across the country from Washington state (he had previously been born in Philadelphia and lived in the city for three years prior to his family moving to Washington). According to the same book, many involved in the Bundy case believe he made the drastic move in an effort to quelch the desires he had developed, but not acted on, in Washington.
Bundy only stayed at Temple for several months. He was back in Washington in the spring of 1969. During his period he claims to have killed two women.
You can read the full PhillyVoice.com article here.
Note, in the PhillyVoice.com it states that he lived with his grandparents in Lafayette Hill. The book, which obviously has much more detail, states that he rented a room (with no mention that it was his grandparents).