123-127 11e Avenue vs 839-843 11e Avenue
Data as of October 29, 2026 · updated every week
839-843 11e Avenue is the older building (1920); 123-127 11e Avenue was built in 1945. 123-127 11e Avenue is assessed at $729,200, 35% more than 839-843 11e Avenue ($541,900). 123-127 11e Avenue has 2 building permits on record, 839-843 11e Avenue has 1. Neither is in a flood zone.
| 123-127 11e Avenue | 839-843 11e Avenue | |
|---|---|---|
| Type | 3 dwellings | 2 dwellings |
| City and borough | Montréal · Lachine | Montréal · Lachine |
| Built | 1945 | 1920 |
| Assessed (roll) | $729,200 | $541,900 |
| Since the previous roll | +16 % | +15 % |
| Welcome tax on that value | ≈ $9,933 | ≈ $6,239 |
| Lot | 546 m² | 426 m² |
| Floor area | 288 m² | 178 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 | 2 · May 2026 | 1 · May 2002 |
| Findings | 1 Check 3 Note | 1 Check 4 Note |
| Nearest metro | — | — |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 123-127 11e Avenue Full report: 839-843 11e Avenue