UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: April 2, 2013 1:00 P.M.
Form: S-4
CIK: 0000920522
Company Name: ESSEX PROPERTY TRUST INC
File Number: 333-186536
CIK: 0001053059
Company Name: ESSEX PORTFOLIO LP
File Number: 333-186536-01