Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ Geoffrey Button ----------------------- Geoffrey Button Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ Ngaire E. Cuneo ----------------------- Ngaire E. Cuneo Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ Howard L. Feinsand ----------------------- Howard L. Feinsand Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ John D. Peterson ----------------------- John D. Peterson Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ James E. Rogers ----------------------- James E. Rogers Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ Daniel C. Staton ----------------------- Daniel C. Staton Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ Jay J. Strauss ----------------------- Jay J. Strauss Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner, Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in-fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post- effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in-fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys-in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ John W. Wynne ----------------------- John W. Wynne Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Darell E. Zink, Jr. and Dennis D. Oklak, and each of them, his attorneys-in- fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post-effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in- fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys- in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ Thomas L. Hefner ----------------------- Thomas L. Hefner Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below hereby constitutes and appoints Thomas L. Hefner and Dennis D. Oklak, and each of them, his attorneys-in- fact and agents, with full power of substitution and resubstitution for him in any and all capacities, to sign a Registration Statement on Form S-3 under the Securities Act of 1933 (the "Registration Statement") for the registration of Common Stock of Duke Realty Investments, Inc. (the "Company") for sale by certain charitable foundation shareholders, and any or all pre-effective amendments or post-effective amendments to the Registration Statement (which amendments may make such changes in and additions to the Registration Statement as such attorneys-in- fact may deem necessary or appropriate), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto each of such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary in connection with such matters and hereby ratifying and confirming all that each of such attorneys- in-fact and agents or his substitute or substitutes may do or cause to be done by virtue hereof. Dated: April 24, 1997 /s/ Darell E. Zink, Jr. ----------------------- Darell E. Zink, Jr.