The TORONTO REGIONAL REAL ESTATE BOARD is a not-for-profit corporation founded in 1920 by a small group of real estate practitioners. Today, as Canada's largest real estate board, TRREB serves over 73,000 REALTOR® Members in and about the GTA. TRREB is the collective voice for both its commercial and residential REALTOR® Members and operates under the direction of an elected voluntary Board of 14 Directors. Professionals connecting people, property and communities.