580 avenue Roslyn vs 656 avenue Roslyn
Data as of October 29, 2026 · updated every week
580 avenue Roslyn is the older building (1921); 656 avenue Roslyn was built in 1922. 656 avenue Roslyn is assessed at $2,181,100, 14% more than 580 avenue Roslyn ($1,918,800). Neither has a building permit on record. Neither is in a flood zone.
| 580 avenue Roslyn | 656 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1921 | 1922 |
| Assessed (roll) | $1,918,800 | $2,181,100 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $26,893 | ≈ $30,827 |
| Lot | 361 m² | 339 m² |
| Floor area | 209 m² | 302 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 | 2 Note |
| Nearest metro | Villa-Maria, 950 m | Villa-Maria, 820 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 580 avenue Roslyn Full report: 656 avenue Roslyn