0000950135-98-005380 424B3 1 19981008 NYSE PCX AVALONBAY COMMUNITIES INC 0000915912 6798 770404318 MD 1231 424B3 33 333-16647 98722470 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 000095013598005380-001-seq1-424b3.txt AVALONBAY COMMUNITIES, INC.