Investor Presentaiton

VALUE CREATION OPPORTUNITIES CITY OFFICE REIT Generate strong returns by driving property cash flow growth, enhancing NAV and a focused growth strategy 2022 ACTIVE APPROACH TO CREATING VALUE ☐ Focus on value-enhancing leasing and growing property cash flow . Invest in spec suites, common area upgrades and select repositionings to win greater leasing market share Recycle capital strategically to unlock value Enhance portfolio through acquisition of premier properties in leading submarkets Bloc 83, Raleigh PROVEN CAPITAL RECYCLING EXECUTION ☐ Over $570 million of gains generated to date ☐ ם Ten dispositions, including pending disposition discussed below Sale of life science portfolio in 2021 was transformational ㅁ Pending sale of Lake Vista Pointe property in Dallas $43.8 million sale price, expected to close in June 2022 (1) ☐ $22 million estimated gain on sale ם Translates to 6.1% expected cash capitalization rate (2) Lake Vista Pointe, Dallas (1) (2) Gross sale price inclusive of certain transaction costs that the buyer is responsible for paying. Closing is subject to customary closing conditions Cap rate calculation includes an adjustment for an unfunded tenant improvement allowance 8

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