320 51e Avenue vs 870 51e Avenue
Data as of October 29, 2026 · updated every week
320 51e Avenue is the older building (1935); 870 51e Avenue was built in 1952. 320 51e Avenue is assessed at $717,800, 6% more than 870 51e Avenue ($678,300). 320 51e Avenue has 3 building permits on record, 870 51e Avenue has 4. Neither is in a flood zone.
| 320 51e Avenue | 870 51e Avenue | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Montréal · Lachine | Montréal · Lachine |
| Built | 1935 | 1952 |
| Assessed (roll) | $717,800 | $678,300 |
| Since the previous roll | +9 % | +5 % |
| Welcome tax on that value | ≈ $9,705 | ≈ $8,915 |
| Lot | 399 m² | 507 m² |
| Floor area | 147 m² | 111 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | Yes | No |
| In a flood zone | No | No |
| Building permits on record | 3 · Nov 2023 | 4 · Apr 2010 |
| Findings | 2 Check 4 Note | 5 Note |
| Nearest metro | — | — |
The full report for each address explains every finding and shows the full permit and value history.