644 avenue Outremont vs 839 avenue Outremont
Data as of October 29, 2026 · updated every week
839 avenue Outremont is the older building (1914); 644 avenue Outremont was built in 1927. 644 avenue Outremont is assessed at $1,032,900, 33% more than 839 avenue Outremont ($777,100). 644 avenue Outremont has 2 building permits on record, 839 avenue Outremont has 0. Neither is in a flood zone.
| 644 avenue Outremont | 839 avenue Outremont | |
|---|---|---|
| Type | Condo building, 1 unit | Condo building, 1 unit |
| City and borough | Montréal · Outremont | Montréal · Outremont |
| Built | 1927 | 1914 |
| Assessed (roll) | $1,032,900 | $777,100 |
| Since the previous roll | — | — |
| Welcome tax on that value | ≈ $16,007 | ≈ $10,891 |
| Lot | — | — |
| Floor area | 122 m² | 106 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 | 2 · May 2022 | 0 |
| Findings | 1 Serious 1 Check 4 Note | 6 Note |
| Nearest metro | Outremont, 370 m | Outremont, 170 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 644 avenue Outremont Full report: 839 avenue Outremont