387 avenue Roslyn vs 657 avenue Roslyn
Data as of October 29, 2026 · updated every week
387 avenue Roslyn is the older building (1919); 657 avenue Roslyn was built in 1927. 657 avenue Roslyn is assessed at $3,268,000, 56% more than 387 avenue Roslyn ($2,100,500). Neither has a building permit on record. Neither is in a flood zone.
| 387 avenue Roslyn | 657 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1919 | 1927 |
| Assessed (roll) | $2,100,500 | $3,268,000 |
| Since the previous roll | +10 % | 0 % |
| Welcome tax on that value | ≈ $29,618 | ≈ $47,131 |
| Lot | 335 m² | 327 m² |
| Floor area | 220 m² | 346 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, 740 m | Villa-Maria, 880 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 387 avenue Roslyn Full report: 657 avenue Roslyn