Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Imhoff Gregory S
  2. Issuer Name and Ticker or Trading Symbol
PRENTISS PROPERTIES TRUST/MD [PP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior Vice President
(Last)
(First)
(Middle)
3890 WEST NORTHWEST HIGHWAY, SUITE 400
3. Date of Earliest Transaction (Month/Day/Year)
07/27/2005
(Street)

DALLAS,, TX 752205166
4. If Amendment, Date 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
(City)
(State)
(Zip)
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
Common Shares 07/27/2005   M   3,333 A $ 34.2 3,333 D (1)  
Common Shares 07/27/2005   F   2,802 D $ 40.8 531 D  
Common Shares of Beneficial Interest(CommonShares)               31,902 D (2)  

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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 Underlying Securities
(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 of Derivative Security: 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
Options $ 34.2 07/27/2005   M     3,333 02/23/2005 02/23/2014 Common Shares 3,333 $ 0 6,667 D (3)  
Options $ 34.8             02/03/2006 02/03/2015 Common Shares 10,000   10,000 D (4)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Imhoff Gregory S
3890 WEST NORTHWEST HIGHWAY
SUITE 400
DALLAS,, TX 752205166
      Senior Vice President  

Signatures

 /s/ Imhoff, Gregory S.   07/29/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents 2,802 Common Shares withheld by the Company to satisfy the option exercise price and payroll tax withholding obligation due upon the exercise of options held by Mr. Imhoff. These shares were then placed in treasury. Mr. Imhoff retained the remaining balance of the Common Shares (531 Common Shares).
(2) The amount of securities beneficially owned (as shown in Column 5 on Page 1) reflect the correct number of securities beneficially owned. The original Form 3 filed on March 19, 2005 reflected the correct number of securities. However, it advertently reflected the Company's CIK and CCC numbers and that Form 3 is being amended to reflect Mr. Imhoff's CIK and CCC numbers.
(3) Options will become exercisable for one-third of the covered Common Shares on 02/23/05, 02/23/06 and for the balance of the covered Common Shares on 02/23/07.
(4) Options will become exercisable for one-third of the Common Shares 02/03/06, 02/03/07 and for the balance of the covered Common Shares on 02/03/08.

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