554 avenue Roslyn vs 578 avenue Roslyn
Data as of October 29, 2026 · updated every week
578 avenue Roslyn is the older building (1911); 554 avenue Roslyn was built in 1965. 578 avenue Roslyn is assessed at $3,266,300, 65% more than 554 avenue Roslyn ($1,978,400). Neither has a building permit on record. Neither is in a flood zone.
| 554 avenue Roslyn | 578 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1965 | 1911 |
| Assessed (roll) | $1,978,400 | $3,266,300 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $27,787 | ≈ $47,105 |
| Lot | 335 m² | 516 m² |
| Floor area | 231 m² | 290 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, 980 m | Villa-Maria, 960 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 554 avenue Roslyn Full report: 578 avenue Roslyn