129 Main Street, Old Ottawa East 129 Main Street features 46 condos in the trending neighbourhood of Old Ottawa East.One of the Italian-accented suites at 129 Main Street.New York-themed suite at 129 Main Street.The rooftop terrace overlooks Old Ottawa East. Fast Facts Location: 129 Main St., OttawaADVERTISEMENTADVERTISEMENT