4-427 21e Avenue vs 428 21e Avenue
Data as of October 29, 2026 · updated every week
4-427 21e Avenue is assessed at $361,100 and 428 21e Avenue at $746,400; one is a whole condo building, so the values do not compare directly. 4-427 21e Avenue has 2 building permits on record, 428 21e Avenue has 0. Neither is in a flood zone.
| 4-427 21e Avenue | 428 21e Avenue | |
|---|---|---|
| Type | Condo unit | Condo building, 2 units |
| City and borough | Montréal · Lachine | Montréal · Lachine |
| Built | 2009 | — |
| Assessed (roll) | $361,100 | $746,400 |
| Since the previous roll | +17 % | — |
| Welcome tax on that value | ≈ $3,527 | ≈ $10,277 |
| Lot | — | — |
| Floor area | 74 m² | 127 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 | 2 · Jul 2026 | 0 |
| Findings | 2 Check 3 Note | 1 Check 5 Note |
| Nearest metro | — | — |
The full report for each address explains every finding and shows the full permit and value history.