Toronto Landmark Historical Office Mansion, The Perfect “Marquee” Building with an Exceptional Yorkville “Annex” Location Designed by Toronto’s most prestigious historical architect E.J.Lennox (Casa Loma, Old City Hall, King Edward Hotel). Grand and Gracious “Romanesque” design. 11′ ceilings, Private Drive Parking for 8 cars. Zoning allows further expansion to approximately 8400 sq ft above grade