Exhibit 24.1
                                POWER OF ATTORNEY


         The undersigned, as a trustee of Great Lakes REIT (the "Company"), does
hereby constitute and appoint Richard A. May, Richard L. Rasley and James Hicks,
and each of them, as his true and lawful attorney-in-fact and agent, with full
power of substitution and resubstitution, for him and in his name, place and
stead, in any and all capacities, to sign the Company's Annual Report on Form
10-K for the fiscal year ended December 31, 2000 and any and all amendments
hereto, and to file the same, with exhibits and schedules thereto, and other
documents therewith, with the Securities and Exchange Commission, granting unto
said attorney-in-fact, full power and authority to do and perform each and every
act and thing necessary or desirable to be done in and about the premises, as
fully to all intents and purposes as he might or could do in person, thereby
ratifying and confirming all that said attorney-in-fact, or his substitute, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, I have hereunto set my hand this 28th the day of
February, 2001.


                            /s/ James J. Brinkerhoff
                            ------------------------
                            James J. Brinkerhoff

                            /s/ Patrick R. Hunt
                            ----------------------------
                            Patrick R. Hunt

                            /s/ Daniel E. Josephs
                            ------------------------
                            Daniel E. Josephs

                            /s/ Daniel P. Kearney
                            -------------------------
                            Daniel P. Kearney

                            /s/ Edward Lowenthal
                            ------------------------
                            Edward Lowenthal

                            /s/ Donald E. Phillips
                            ------------------------
                            Donald E. Phillips