664-666 12e Avenue vs 816 12e Avenue
Data as of October 25, 2026 · updated every week
816 12e Avenue is the older building (1930); 664-666 12e Avenue was built in 1950. 664-666 12e Avenue is assessed at $612,400, 45% more than 816 12e Avenue ($421,000). 664-666 12e Avenue has 4 building permits on record, 816 12e Avenue has 1. Neither is in a flood zone.
| 664-666 12e Avenue | 816 12e Avenue | |
|---|---|---|
| Type | 2 dwellings | House or building |
| City and borough | Montréal · Lachine | Montréal · Lachine |
| Built | 1950 | 1930 |
| Assessed (roll) | $612,400 | $421,000 |
| Since the previous roll | +19 % | +21 % |
| Welcome tax on that value | ≈ $7,597 | ≈ $4,426 |
| Lot | 209 m² | 87 m² |
| Floor area | 139 m² | 157 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | No | Yes |
| In a flood zone | No | No |
| Building permits on record | 4 · Jul 2026 | 1 · Mar 2003 |
| Findings | 1 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.