521-523 avenue Gonthier vs 557-559 avenue Gonthier
Data as of November 1, 2026 · updated every week
557-559 avenue Gonthier is the older building (1923); 521-523 avenue Gonthier was built in 1947. 557-559 avenue Gonthier is assessed at $624,800, 16% more than 521-523 avenue Gonthier ($536,400). 521-523 avenue Gonthier has 3 building permits on record, 557-559 avenue Gonthier has 0. Neither is in a flood zone.
| 521-523 avenue Gonthier | 557-559 avenue Gonthier | |
|---|---|---|
| Type | 2 dwellings | 2 dwellings |
| City and borough | Montréal · Mercier-Hochelaga-Maisonneuve | Montréal · Mercier-Hochelaga-Maisonneuve |
| Built | 1947 | 1923 |
| Assessed (roll) | $536,400 | $624,800 |
| Since the previous roll | +9 % | +65 % |
| Welcome tax on that value | ≈ $6,157 | ≈ $7,845 |
| Lot | 232 m² | 203 m² |
| Floor area | 177 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 | 3 · Jul 2016 | 0 |
| Findings | 3 Note | 1 Serious 1 Check 3 Note |
| Nearest metro | Honoré-Beaugrand, 2.5 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: 521-523 avenue Gonthier Full report: 557-559 avenue Gonthier