SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Expires: February 28, 2011 Estimated average burden hours per response 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Dance Michael T (Last) (First) (Middle) C/O ESSEX PROPERTY TRUST, INC. 925 EAST MEADOW DRIVE (Street) PALO ALTO CA 94303 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol ESSEX PROPERTY TRUST INC [ ESS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Executive VP and CFO
	3. Date of Earliest Transaction (Month/Day/Year) 03/31/2005
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series Z-1 Incentive Unit ( 1 )	( 3 )	03/31/2005	03/31/2005	J ( 1 )		15,000		06/30/2019 ( 2 )	06/30/2019 ( 2 )	Series Z-1 Incentive Units	15,000 ( 3 )	$1 ( 4 )	15,000	D

Explanation of Responses:

1. Represents the grand of Series Z-1 Incentive Units pursuant to the Esesx Portfolo, L.P. Long Term Incentive Plan. Subject to the conversion Ratchet Percentage described below, the Series Z-q Incentive Units are convertible or reeemable, as the case may be, upon the occurence of certain events, into either (i) Operating Partnerhip units in Essex Portfolio, L.P. ("OPUs"), and such OPUs areconverticle into shares of Common Stock. The Conversion Ratchet Percentage, initially set at 20% will increase by up to 10% on January 1 of each year for each holder of SEries Z-1 Incentive Units who remains employed by Essex Property Trust, Inc. if Essex Property Trust, Inc. has met a specificed "funds from operations" per share target, or such other criteria established by the Compensation Committee, for the prior year, up to a maximum Conversion Ratchet Percentage of 100%.

2. The Series Z-1 Incentive Units will automatically convert into OPUs (1) if the Conversion Ratchet Percentage reaches the maximum level of 100%, (2) if none of the participating executives remain employed by Essex Property Trust, Inc., (3) if Essex Property Trust, Inc. dissolves or is liquidated or, (4) at the latest, June 2019. In certain change of control situations, the participating executives will also be given the option to convert their units at the then-effective Conversion Ratchet Percentage. In addition, Essex Portfolio, L.P. has the option to redeem Series Z-1 Incentive Units held by any executive whose employment has been terminated for any reason and the obligation to redeem any such units following the death of the holder. In such event, Essex Portfolio, L.P. will redeem the units for, at its option, either OPUs or shares of Common Stock based on the then-effective Conversion Ratchet Percentage.

3. The Series Z-1 Incentive Units are convertible into the number of OPUs calculated by dividing (1) the remainder resulting from (a) the portion of the adjusted capital account balance properly allocable to such Series Z-1 Incentive Units minus (b) the product of (i) such adjusted capital account balance allocable to such Series Z-1 Incentive Unit multiplied by (ii) (x) 100% less (y) the Conversion Ratchet Percentage applicable to such Series Z-1 Incentive Unit, minus (c) any unpaid capital commitment (2) the average adjusted capital account balance properly allocable to one OPU determined immediately prior to such conversion.

4. A capital contribution of $1.00 per Series Z-1 Incentive Unit.

	Mary Jensen	04/01/2005
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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