21-25 1e Avenue vs 497-507 1e Avenue
Data as of October 29, 2026 · updated every week
497-507 1e Avenue is the older building (1913); 21-25 1e Avenue was built in 1930. 497-507 1e Avenue is assessed at $1,296,900, 38% more than 21-25 1e Avenue ($941,800). 21-25 1e Avenue has 5 building permits on record, 497-507 1e Avenue has 2. Neither is in a flood zone.
| 21-25 1e Avenue | 497-507 1e Avenue | |
|---|---|---|
| Type | 3 dwellings | 6 dwellings |
| City and borough | Montréal · Verdun | Montréal · Verdun |
| Built | 1930 | 1913 |
| Assessed (roll) | $941,800 | $1,296,900 |
| Since the previous roll | +18 % | +7 % |
| Welcome tax on that value | ≈ $14,185 | ≈ $22,248 |
| Lot | 235 m² | 359 m² |
| Floor area | 288 m² | 412 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | Yes | Yes |
| In a flood zone | No | No |
| Building permits on record | 5 · Apr 2022 | 2 · Sep 2025 |
| Findings | 1 Serious 2 Check 7 Note | 2 Check 5 Note |
| Nearest metro | De l'Église, 460 m | Verdun, 80 m |
The full report for each address explains every finding and shows the full permit and value history.