21 rue Ontario Ouest vs 51-67 rue Ontario Ouest
Data as of November 1, 2026 · updated every week
21 rue Ontario Ouest is the older building (1907); 51-67 rue Ontario Ouest was built in 1935. 21 rue Ontario Ouest is assessed at $2,227,100 and 51-67 rue Ontario Ouest at $3,917,800; one is a whole condo building, so the values do not compare directly. 21 rue Ontario Ouest has 3 building permits on record, 51-67 rue Ontario Ouest has 8. Neither is in a flood zone.
| 21 rue Ontario Ouest | 51-67 rue Ontario Ouest | |
|---|---|---|
| Type | Condo building, 1 unit | 6 dwellings |
| City and borough | Montréal · Ville-Marie | Montréal · Ville-Marie |
| Built | 1907 | 1935 |
| Assessed (roll) | $2,227,100 | $3,917,800 |
| Since the previous roll | — | +10 % |
| Welcome tax on that value | ≈ $46,409 | ≈ $109,608 |
| Lot | — | 859 m² |
| Floor area | 466 m² | 1,473 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | Yes | Yes |
| In a flood zone | No | No |
| Building permits on record | 3 · Feb 2022 | 8 · Feb 2025 |
| Findings | 1 Serious 4 Note | 2 Check 4 Note |
| Nearest metro | Saint-Laurent, 180 m | Saint-Laurent, 160 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 21 rue Ontario Ouest Full report: 51-67 rue Ontario Ouest