Granada Hills Community Foundation Share: Community Organizations Granada Hills Community Foundation 10724 White Oak Ave Granada Hills, CA 91344 (818) 207-2993 (818) 363-3270 (fax) Rep Info Map Whom to Contact John Weitkamp 10724 White Oak Ave Granada Hills, CA 91344 Phone: (818) 207-2993 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.