<SEC-DOCUMENT>0000915912-18-000006-index.html : 20180312
<SEC-HEADER>0000915912-18-000006.hdr.sgml : 20180312
<ACCEPTANCE-DATETIME>20180312170424
ACCESSION NUMBER:		0000915912-18-000006
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180312
DATE AS OF CHANGE:		20180312

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AVALONBAY COMMUNITIES INC
		CENTRAL INDEX KEY:			0000915912
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				770404318
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		11-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12672
		FILM NUMBER:		18684230

	BUSINESS ADDRESS:	
		STREET 1:		671 N. GLEBE ROAD
		STREET 2:		SUITE 800
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22203
		BUSINESS PHONE:		7033296300

	MAIL ADDRESS:	
		STREET 1:		671 N. GLEBE ROAD
		STREET 2:		STE 800
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AVALON BAY COMMUNITIES INC
		DATE OF NAME CHANGE:	19980618

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BAY APARTMENT COMMUNITIES INC
		DATE OF NAME CHANGE:	19931208
</SEC-HEADER>
<DOCUMENT>
<TYPE>11-K
<SEQUENCE>1
<FILENAME>a201711-k.htm
<DESCRIPTION>11-K
<TEXT>
Document 1 - file: a201711-k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>exhibit2312017.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 2 - file: exhibit2312017.htm

</DOCUMENT>
</SEC-DOCUMENT>