11850 boulevard O'Brien vs 12315 boulevard O'Brien
Data as of October 29, 2026 · updated every week
12315 boulevard O'Brien is the older building (1950); 11850 boulevard O'Brien was built in 1953. 11850 boulevard O'Brien is assessed at $976,500, 68% more than 12315 boulevard O'Brien ($582,700). Each has 2 building permits on record. Neither is in a flood zone.
| 11850 boulevard O'Brien | 12315 boulevard O'Brien | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Montréal · Ahuntsic-Cartierville | Montréal · Ahuntsic-Cartierville |
| Built | 1953 | 1950 |
| Assessed (roll) | $976,500 | $582,700 |
| Since the previous roll | +12 % | +10 % |
| Welcome tax on that value | ≈ $14,879 | ≈ $7,003 |
| Lot | 465 m² | 557 m² |
| Floor area | 207 m² | 92 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 · Oct 2016 | 2 · Mar 2024 |
| Findings | 1 Serious 3 Note | 1 Check 4 Note |
| Nearest metro | Côte-Vertu, 2.5 km | Montmorency, 2.6 km |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 11850 boulevard O'Brien Full report: 12315 boulevard O'Brien