Investor Presentaiton

SUMMIT ALBERTA (23% of REIT portfolio by value) At March 31, 2022 Number of properties Total square feet ('000s) Occupancy CALGARY EDMONTON 25 23 3,689 2,265 97.4% 95.1% Change in SPNOI (¹) -4.6% +0.9% In-Place Rent (per sq. ft.)' (2) $7.92 $11.04 (3) Average Market Net Rent $8.90 $10.40 (1) Non-GAAP measure. Refer to Appendix A | Non-GAAP Measures in the REIT's MD&A for three months ended March 31, 2022 for further information, including definitions and reconciliations. (2) Includes over 600K sq. ft. of properties with very low site coverage in Alberta. (3) Source: CBRE Q1 2022 Quarterly Statistics. 29 | Q1 2022 INVESTOR PRESENTATION Summit IREIT

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