11 avenue Ainslie vs 23 avenue Ainslie
Data as of October 29, 2026 · updated every week
11 avenue Ainslie is the older building (1914); 23 avenue Ainslie was built in 1989. They are assessed at about the same value ($4,807,100). 11 avenue Ainslie has 4 building permits on record, 23 avenue Ainslie has 1. Neither is in a flood zone.
| 11 avenue Ainslie | 23 avenue Ainslie | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Montréal · Outremont | Montréal · Outremont |
| Built | 1914 | 1989 |
| Assessed (roll) | $4,807,100 | $4,716,300 |
| Since the previous roll | +8 % | +8 % |
| Welcome tax on that value | ≈ $145,180 | ≈ $141,548 |
| Lot | 743 m² | 790 m² |
| Floor area | 444 m² | 401 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 | 4 · Jan 2026 | 1 · Jul 2025 |
| Findings | 1 Serious 2 Check 2 Note | 1 Check 2 Note |
| Nearest metro | Édouard-Montpetit, 420 m | Édouard-Montpetit, 460 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 11 avenue Ainslie Full report: 23 avenue Ainslie