3121 avenue Gonthier vs 520-522 avenue Gonthier
Data as of November 1, 2026 · updated every week
520-522 avenue Gonthier is the older building (1929); 3121 avenue Gonthier was built in 1982. 520-522 avenue Gonthier is assessed at $518,900, 7% more than 3121 avenue Gonthier ($483,600). 3121 avenue Gonthier has 1 building permits on record, 520-522 avenue Gonthier has 6. Neither is in a flood zone.
| 3121 avenue Gonthier | 520-522 avenue Gonthier | |
|---|---|---|
| Type | House or building | 2 dwellings |
| City and borough | Montréal · Mercier-Hochelaga-Maisonneuve | Montréal · Mercier-Hochelaga-Maisonneuve |
| Built | 1982 | 1929 |
| Assessed (roll) | $483,600 | $518,900 |
| Since the previous roll | +14 % | +9 % |
| Welcome tax on that value | ≈ $5,365 | ≈ $5,894 |
| Lot | 305 m² | 276 m² |
| Floor area | 109 m² | 216 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 | 1 · Dec 2021 | 6 · Jan 2023 |
| Findings | 4 Note | 1 Serious 1 Check 3 Note |
| Nearest metro | Honoré-Beaugrand, 2.1 km | Honoré-Beaugrand, 2.4 km |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 3121 avenue Gonthier Full report: 520-522 avenue Gonthier