EXHIBIT 23.3 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated February 20, 2001, relating to the financial statements and financial statement schedules, which appears in Mack-Cali Realty Corporation's Annual Report on Form 10-K for the year ended December 31, 2000. We also consent to the reference to us under the heading "Experts" in such Registration Statement. /s/ PRICEWATERHOUSECOOPERS LLP - ------------------------------------------- PricewaterhouseCoopers LLP
New York, New York April 30, 2001