0001209191-08-048115 4 1 20080818 20080819 20080819 AVALONBAY COMMUNITIES INC 0000915912 6798 770404318 MD 1231 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 Morris James Richard 0001319904 4 34 001-12672 081027129 703-329-6300 2900 EISENHOWER AVE., SUITE 300 ALEXANDRIA VA 22314 4 1 doc4.xml FORM 4 SUBMISSION