495-497 1e Avenue vs 580-582 1e Avenue
Data as of October 25, 2026 · updated every week
580-582 1e Avenue is the older building (1900); 495-497 1e Avenue was built in 1947. 495-497 1e Avenue is assessed at $618,400, 51% more than 580-582 1e Avenue ($409,500). 495-497 1e Avenue has 0 building permits on record, 580-582 1e Avenue has 1. Neither is in a flood zone.
| 495-497 1e Avenue | 580-582 1e Avenue | |
|---|---|---|
| Type | 2 dwellings | 2 dwellings |
| City and borough | Montréal · Lachine | Montréal · Lachine |
| Built | 1947 | ≈ 1900 |
| Assessed (roll) | $618,400 | $409,500 |
| Since the previous roll | +19 % | +19 % |
| Welcome tax on that value | ≈ $7,717 | ≈ $4,253 |
| Lot | 557 m² | 234 m² |
| Floor area | 145 m² | 147 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | No | Yes |
| In a flood zone | No | No |
| Building permits on record | 0 | 1 · Sep 2021 |
| Findings | 5 Note | 1 Check 5 Note |
| Nearest metro | — | — |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 495-497 1e Avenue Full report: 580-582 1e Avenue