11806 boulevard O'Brien vs 12135-12137 boulevard O'Brien
Data as of October 29, 2026 · updated every week
12135-12137 boulevard O'Brien is the older building (1950); 11806 boulevard O'Brien was built in 1953. 11806 boulevard O'Brien is assessed at $594,000, 4% more than 12135-12137 boulevard O'Brien ($569,900). 11806 boulevard O'Brien has 2 building permits on record, 12135-12137 boulevard O'Brien has 1. Neither is in a flood zone.
| 11806 boulevard O'Brien | 12135-12137 boulevard O'Brien | |
|---|---|---|
| Type | House or building | 2 dwellings |
| City and borough | Montréal · Ahuntsic-Cartierville | Montréal · Ahuntsic-Cartierville |
| Built | 1953 | 1950 |
| Assessed (roll) | $594,000 | $569,900 |
| Since the previous roll | +12 % | +21 % |
| Welcome tax on that value | ≈ $7,229 | ≈ $6,747 |
| Lot | 465 m² | 348 m² |
| Floor area | 107 m² | 184 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | No | No |
| In a flood zone | No | No |
| Building permits on record | 2 · Apr 2024 | 1 · Sep 2025 |
| Findings | 2 Check 2 Note | 1 Check 4 Note |
| Nearest metro | Côte-Vertu, 2.3 km | Montmorency, 2.9 km |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 11806 boulevard O'Brien Full report: 12135-12137 boulevard O'Brien