515 avenue Roslyn vs 637 avenue Roslyn
Data as of October 29, 2026 · updated every week
515 avenue Roslyn is the older building (1900); 637 avenue Roslyn was built in 1905. 515 avenue Roslyn is assessed at $4,374,400, 54% more than 637 avenue Roslyn ($2,842,900). Neither has a building permit on record. Neither is in a flood zone.
| 515 avenue Roslyn | 637 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | ≈ 1900 | 1905 |
| Assessed (roll) | $4,374,400 | $2,842,900 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $63,727 | ≈ $40,754 |
| Lot | 784 m² | 516 m² |
| Floor area | 418 m² | 323 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 | 1 Note | 1 Note |
| Nearest metro | Vendôme, 920 m | Villa-Maria, 900 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 515 avenue Roslyn Full report: 637 avenue Roslyn