401-6410 21e Avenue vs 6421 21e Avenue
Data as of November 1, 2026 · updated every week
6421 21e Avenue is the older building (1999); 401-6410 21e Avenue was built in 2003. 401-6410 21e Avenue is assessed at $460,000 and 6421 21e Avenue at $646,100; one is a whole condo building, so the values do not compare directly. 401-6410 21e Avenue has 3 building permits on record, 6421 21e Avenue has 4. Neither is in a flood zone.
| 401-6410 21e Avenue | 6421 21e Avenue | |
|---|---|---|
| Type | Condo unit | Condo building, 1 unit |
| City and borough | Montréal · Rosemont-La Petite-Patrie | Montréal · Rosemont-La Petite-Patrie |
| Built | 2003 | 1999 |
| Assessed (roll) | $460,000 | $646,100 |
| Since the previous roll | +3 % | — |
| Welcome tax on that value | ≈ $5,011 | ≈ $8,271 |
| Lot | — | — |
| Floor area | 96 m² | 114 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 | 3 · Aug 2024 | 4 · Aug 2025 |
| Findings | 1 Check 3 Note | 1 Check 3 Note |
| Nearest metro | Saint-Michel, 1.6 km | Saint-Michel, 1.6 km |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 401-6410 21e Avenue Full report: 6421 21e Avenue