Investor Presentaiton

RECENT HIGHLIGHTS AND 2022 OUTLOOK CITY OFFICE REIT FIRST QUARTER 2022 Core FFO per share of $0.40 and AFFO per share of $0.19 ☐ Highest Core FFO per share in the Company's history Quarterly common dividend of $0.20 per share Executed approximately 221,000 square feet of new and renewal leases Invested approximately $800,000 on creation of spec suites and vacancy conditioning to enhance leasing prospects 2022 GUIDANCE (1) Full Year 2022 Planned Acquisitions Planned Dispositions Net Operating Income Core FFO per Share December 31, 2022 Occupancy Same Store Cash NOI Change Low High $0.0M $0.0M $0.0M $44.0M $113.0M $115.0M $1.56 $1.60 86.5% 88.5% (6.0%) (4.0%) Midpoint of 2022 Core FFO per Share guidance is 16% higher than actual 2021 Core FFO per Share Same Store Cash NOI Change impacted by several anticipated move-outs and free rent periods in 2022 Assumes no capital raising or share repurchases Amenity Deck, Block 23, Phoenix (1) See the Company's Q4 2021 and Q1 2022 earnings press release for further discussion of the material assumptions underlying the Company's guidance. This outlook reflects management's current view of current and future operations and market conditions, which management cannot guarantee will occur as expected, or at all, including the impact of the COVID-19 pandemic, which is impossible to predict 9

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