BTB Real Estate Investment Trust (BTB) is a Canada-based unincorporated open-ended real estate trust. The Trust owns approximately 63 commercial, office and industrial properties in primary and secondary markets. The Trust operates through four segments, which include office, commercial, industrial and general purpose properties. The Trust is a real estate owner in geographical markets in Quebec and eastern Ontario. The Trust's leasable area is approximately 5.3 million square feet. The Trust also offers property management services, such as maintenance and repairs, electrical, locks and keys, light bulbs and lens, labor, and other services, such as heating, ventilation, air conditioning (HVAC), access card and parking services. The Trust's real estate portfolio consists of direct interests in investment properties and the Trust's share of the assets, liabilities, revenues and expenses of jointly-controlled investment properties.