0001047469-04-016422 S-8 4 20040507 20040507 AVALONBAY COMMUNITIES INC 0000915912 6798 770404318 MD 1231 S-8 33 333-115290 04789174 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 S-8 1 a2135441zs-8.htm FORM S-8 EX-4.1 2 a2135441zex-4_1.htm EXHIBIT 4.1 EX-5.1 3 a2135441zex-5_1.htm EXHIBIT 5.1 EX-23.1 4 a2135441zex-23_1.htm EXHIBIT 23.1