319 avenue Roslyn vs 651 avenue Roslyn
Data as of October 29, 2026 · updated every week
319 avenue Roslyn is the older building (1900); 651 avenue Roslyn was built in 1920. 651 avenue Roslyn is assessed at $3,375,000, 90% more than 319 avenue Roslyn ($1,774,000). Neither has a building permit on record. Neither is in a flood zone.
| 319 avenue Roslyn | 651 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | ≈ 1900 | 1920 |
| Assessed (roll) | $1,774,000 | $3,375,000 |
| Since the previous roll | +10 % | 0 % |
| Welcome tax on that value | ≈ $24,721 | ≈ $48,736 |
| Lot | 315 m² | 505 m² |
| Floor area | 187 m² | 300 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 | 0 | 0 |
| Findings | 2 Note | 1 Note |
| Nearest metro | Vendôme, 700 m | Villa-Maria, 880 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 319 avenue Roslyn Full report: 651 avenue Roslyn