266 avenue Outremont vs 829-831 avenue Outremont
Data as of October 29, 2026 · updated every week
266 avenue Outremont is the older building (1912); 829-831 avenue Outremont was built in 1914. 266 avenue Outremont is assessed at $3,521,000, 146% more than 829-831 avenue Outremont ($1,434,000). 266 avenue Outremont has 4 building permits on record, 829-831 avenue Outremont has 2. Neither is in a flood zone.
| 266 avenue Outremont | 829-831 avenue Outremont | |
|---|---|---|
| Type | House or building | 3 dwellings |
| City and borough | Montréal · Outremont | Montréal · Outremont |
| Built | 1912 | 1914 |
| Assessed (roll) | $3,521,000 | $1,434,000 |
| Since the previous roll | +3 % | +6 % |
| Welcome tax on that value | ≈ $93,736 | ≈ $25,676 |
| Lot | 531 m² | 186 m² |
| Floor area | 347 m² | 329 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | Yes | Yes |
| In a flood zone | No | No |
| Building permits on record | 4 · Apr 2026 | 2 · Aug 2020 |
| Findings | 1 Serious 2 Check 2 Note | 1 Check 6 Note |
| Nearest metro | Édouard-Montpetit, 950 m | Outremont, 160 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 266 avenue Outremont Full report: 829-831 avenue Outremont