4175 Rue Sainte-Catherine O
Westmount Québec, H3Z
Building profile
4175 Rue Sainte-Catherine O
Westmount Québec, H3Z
Château Westmount Square
- Units
- 86
- Floors
- 22
- Year built
- 1989
Average value
$2,099,914
+65 %Doormath estimate
vs Westmount · Avg. $1,275,873
Estimated range
1.1 M$ – 5 M$
across units
Unit types
86 units in the buildingAverage luxury level · World-Class
Based on appraisals by Doormath contributors.
In the building
Recorded areas
1,272 – 4,002 pi²
Area of listed units
Services and amenities
- Shared terrace
- Elevator
- Gym
- Outdoor pool
- Sauna
- Doorman
- Valet service
- Tennis court
Building units (86)
4175 Rue Sainte-Catherine O
Château Westmount Square · 86 units foundBuilding analysis
What distinguishes this building
Château Westmount Square includes 86 known condos in Westmount. Among documented units, 3+ bedrooms units are the most common (86 of 86 documented units). Recorded sizes range from 1,272–4,002 ft², making like-for-like unit comparisons more useful than the building-wide average alone. The average estimated value of $2,099,914 is 65% above the Westmount sector average.
Coverage: 84 units with an estimate · 86 with documented bedrooms · 86 listed units in total.
Most common profile
86 · 3+ bedrooms
86 documented units
Recorded sizes
1,272–4,002 ft²
Compare similar units
Positioning
+65 %
above the Westmount sector average
About the data
The information on this page combines available public data with details shared by Doormath contributors. Values are estimates; some characteristics may be incomplete or vary from one unit to another.







