437 21e Avenue vs 101-80 21e Avenue
Data as of October 29, 2026 · updated every week
101-80 21e Avenue is the older building (2003); 437 21e Avenue was built in 2009. 437 21e Avenue is assessed at $392,500 and 101-80 21e Avenue at $503,900; one is a whole condo building, so the values do not compare directly. 437 21e Avenue has 1 building permits on record, 101-80 21e Avenue has 2. Neither is in a flood zone.
| 437 21e Avenue | 101-80 21e Avenue | |
|---|---|---|
| Type | Condo building, 8 units | Condo unit |
| City and borough | Montréal · Lachine | Montréal · Lachine |
| Built | 2009 | 2003 |
| Assessed (roll) | $392,500 | $503,900 |
| Since the previous roll | — | +16 % |
| Welcome tax on that value | ≈ $3,998 | ≈ $5,669 |
| Lot | — | — |
| Floor area | 598 m² | 107 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 | 1 · Apr 2010 | 2 · Jun 2003 |
| Findings | 1 Check 4 Note | 4 Note |
| Nearest metro | — | — |
The full report for each address explains every finding and shows the full permit and value history.