0001047469-04-034974 424B3 1 20041122 20041122 AVALONBAY COMMUNITIES INC 0000915912 6798 770404318 MD 1231 424B3 33 333-107413 041161454 2900 EISENHOWER AVENUE SUITE 300 ALEXANDRIA VA 22314 7033296300 2900 EISENHOWER AVENUE STE 300 ALEXANDRIA VA 22314 AVALON BAY COMMUNITIES INC 19980618 BAY APARTMENT COMMUNITIES INC 19931208 424B3 1 a2147152z424b3.htm 424B3