1-433 21e Avenue vs 434 21e Avenue
Data as of October 29, 2026 · updated every week
434 21e Avenue is the older building (2005); 1-433 21e Avenue was built in 2009. 1-433 21e Avenue is assessed at $316,800 and 434 21e Avenue at $757,000; one is a whole condo building, so the values do not compare directly. 1-433 21e Avenue has 1 building permits on record, 434 21e Avenue has 3. Neither is in a flood zone.
| 1-433 21e Avenue | 434 21e Avenue | |
|---|---|---|
| Type | Condo unit | Condo building, 1 unit |
| City and borough | Montréal · Lachine | Montréal · Lachine |
| Built | 2009 | 2005 |
| Assessed (roll) | $316,800 | $757,000 |
| Since the previous roll | +17 % | — |
| Welcome tax on that value | ≈ $2,863 | ≈ $10,489 |
| Lot | — | — |
| Floor area | 75 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 | 1 · Apr 2010 | 3 · Jun 2019 |
| Findings | 1 Check 4 Note | 1 Check 5 Note |
| Nearest metro | — | — |
The full report for each address explains every finding and shows the full permit and value history.