11850 boulevard O'Brien vs 11871 boulevard O'Brien
Data as of October 29, 2026 · updated every week
11871 boulevard O'Brien is the older building (1949); 11850 boulevard O'Brien was built in 1953. 11850 boulevard O'Brien is assessed at $976,500, 65% more than 11871 boulevard O'Brien ($591,500). 11850 boulevard O'Brien has 2 building permits on record, 11871 boulevard O'Brien has 1. Neither is in a flood zone.
| 11850 boulevard O'Brien | 11871 boulevard O'Brien | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Montréal · Ahuntsic-Cartierville | Montréal · Ahuntsic-Cartierville |
| Built | 1953 | 1949 |
| Assessed (roll) | $976,500 | $591,500 |
| Since the previous roll | +12 % | +12 % |
| Welcome tax on that value | ≈ $14,879 | ≈ $7,179 |
| Lot | 465 m² | 465 m² |
| Floor area | 207 m² | 97 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 | 1 · May 2005 |
| Findings | 1 Serious 3 Note | 1 Serious 4 Note |
| Nearest metro | Côte-Vertu, 2.5 km | Côte-Vertu, 2.5 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: 11871 boulevard O'Brien