12309 avenue René-Masson vs 12431 avenue René-Masson
Data as of November 1, 2026 · updated every week
12431 avenue René-Masson is the older building (1984); 12309 avenue René-Masson was built in 1999. 12309 avenue René-Masson is assessed at $865,900, 92% more than 12431 avenue René-Masson ($450,300). 12309 avenue René-Masson has 2 building permits on record, 12431 avenue René-Masson has 0. Neither is in a flood zone.
| 12309 avenue René-Masson | 12431 avenue René-Masson | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Montréal · Rivière-des-Prairies-Pointe-aux-Trembles | Montréal · Rivière-des-Prairies-Pointe-aux-Trembles |
| Built | 1999 | 1984 |
| Assessed (roll) | $865,900 | $450,300 |
| Since the previous roll | +5 % | +5 % |
| Welcome tax on that value | ≈ $12,667 | ≈ $4,865 |
| Lot | 570 m² | 379 m² |
| Floor area | 312 m² | 119 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 · Aug 1999 | 0 |
| Findings | 4 Note | 3 Note |
| Nearest metro | — | — |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 12309 avenue René-Masson Full report: 12431 avenue René-Masson