$21,800,000
ULS: 25913108
Two or more storey house
for sale
3 Av. Roxborough, Westmount
Rare opportunity to acquire one of Westmount's most iconic gated estates. Complete privacy, mature hedges, and a new San Marcos-stone pool with state-of-the-art exterior lighting. Multi-million-dollar renovations include a fully reconstructed basement, a spectacular sunroom with a sloping window-paneled ceiling reaching 20 ft at its peak, and a 14-ft custom bar. Revamped master suite, secondary wing, updated bedrooms and baths, and modernized garage. Enjoy unobstructed city and river views.
Sale with exclusion(s) of legal warranty - See listing broker(s)
Number of rooms
27
Living area
6,680 ft²
Property features
7
(6
+ 1)
Bedrooms
5
Bathrooms
2
Powder rooms
JOSEPH MONTANARO
Real Estate Broker
Addendum
**Declarations**
**The living area indicated is based on data from ÉvalWeb and information obtained from the city land registry.
-The choice of inspectors shall be agreed to by both parties prior to inspection.
-The stove(s), fireplace(s), combustion appliance(s) and chimney(s) are sold without any warranty with respect to their compliance with applicable regulations and insurance company requirements.
This gated Westmount estate is one of the most prestigious and coveted offerings in the city. Behind secure gates and mature landscaping, it offers exceptional privacy, tranquility, and timeless elegance -- designed for the most discerning buyer seeking sophistication, comfort, and grandeur.
Major Renovations & Upgrades
*Multi-million-dollar renovations over the past several years
*Complete reconstruction of the basement down to the foundation
*Full renovation of the two- to three-car garage with direct access
*Revamped master suite and secondary wing
*Updates to bedrooms and bathrooms on upper floors
*Redesigned main-level den and powder room
*Fully reimagined great room (sunroom) as the home's dramatic centerpiece
Architectural Highlights
*Sunroom with sloping, window-paneled glass ceiling reaching 20 feet at its peak
*Custom 14-foot built-in bar added in 2025, ideal for showcasing fine wine and spirits
*Formal living room with soaring ceilings and exquisite moldings
*Elegant formal dining room with adjoining den
*Chef's kitchen with professional-grade appliances, custom cabinetry, and bright dinette overlooking gardens
Layout & Living Spaces
*Master suite with living room, bedroom, walk-in closet, and unobstructed city and river views
*Secondary suite with bedroom, bathroom, and den in opposite wing
*Wood-paneled office and lounge for work or quiet retreat
*Third floor with three bedrooms and two full bathrooms
*Expansive lower level, fully rebuilt as open-concept space ideal for home theatre, gym, or lounge
Exterior Features
*Brand-new custom pool finished in San Marcos stone
*Mature hedges surrounding the entire property for complete privacy
*Heated uni-stone driveway accommodating numerous vehicles
*Elegant central fountain enhancing the arrival experience
*State-of-the-art exterior lighting highlighting the home and gardens after dark
This is a rare opportunity to acquire a true Westmount landmark, a residence combining historical prestige with extensive renovations, delivering a home that meets today's highest standard of luxury living.
**The living area indicated is based on data from ÉvalWeb and information obtained from the city land registry.
-The choice of inspectors shall be agreed to by both parties prior to inspection.
-The stove(s), fireplace(s), combustion appliance(s) and chimney(s) are sold without any warranty with respect to their compliance with applicable regulations and insurance company requirements.
This gated Westmount estate is one of the most prestigious and coveted offerings in the city. Behind secure gates and mature landscaping, it offers exceptional privacy, tranquility, and timeless elegance -- designed for the most discerning buyer seeking sophistication, comfort, and grandeur.
Major Renovations & Upgrades
*Multi-million-dollar renovations over the past several years
*Complete reconstruction of the basement down to the foundation
*Full renovation of the two- to three-car garage with direct access
*Revamped master suite and secondary wing
*Updates to bedrooms and bathrooms on upper floors
*Redesigned main-level den and powder room
*Fully reimagined great room (sunroom) as the home's dramatic centerpiece
Architectural Highlights
*Sunroom with sloping, window-paneled glass ceiling reaching 20 feet at its peak
*Custom 14-foot built-in bar added in 2025, ideal for showcasing fine wine and spirits
*Formal living room with soaring ceilings and exquisite moldings
*Elegant formal dining room with adjoining den
*Chef's kitchen with professional-grade appliances, custom cabinetry, and bright dinette overlooking gardens
Layout & Living Spaces
*Master suite with living room, bedroom, walk-in closet, and unobstructed city and river views
*Secondary suite with bedroom, bathroom, and den in opposite wing
*Wood-paneled office and lounge for work or quiet retreat
*Third floor with three bedrooms and two full bathrooms
*Expansive lower level, fully rebuilt as open-concept space ideal for home theatre, gym, or lounge
Exterior Features
*Brand-new custom pool finished in San Marcos stone
*Mature hedges surrounding the entire property for complete privacy
*Heated uni-stone driveway accommodating numerous vehicles
*Elegant central fountain enhancing the arrival experience
*State-of-the-art exterior lighting highlighting the home and gardens after dark
This is a rare opportunity to acquire a true Westmount landmark, a residence combining historical prestige with extensive renovations, delivering a home that meets today's highest standard of luxury living.
Building details and property interior
Year constructed
1926
Living area
6,680 ft²
Windows
Aluminum, Wood
Window Type
French door
Siding
Stone
Roofing
Slate
Garage
Heated, Double width or more, Built-in
Washer/Dryer (installation)
Laundry room (SS)
Kitchen Cabinets
Wood
Bathroom
Separate shower, Whirlpool bath, Ensuite bathroom
Basement
6 feet and more, Finished basement
Lot and exterior features
Lot area
16,070.51 ft²
View
View of the water, View of the city, Panoramic, View of the mountain
Distinctive Features
Street corner
Driveway
Paving stone
Parking (total)
Driveway (12), Garage (3)
Pool
Inground, Heated
Proximity
Bicycle path, Elementary school, High school, Cross-country skiing, Daycare centre, University, CEGEP, Highway, Public transportation, Hospital, Metro, Park
Room details
Hall
Level:
1st level/Ground floor
Dimensions:
19'8" X 11' irr.
Flooring:
Marble
Details:
Office
Level:
1st level/Ground floor
Dimensions:
16'3" X 20'9" irr.
Flooring:
Carpet
Details:
Powder room
Level:
1st level/Ground floor
Dimensions:
6'8" X 4'7" irr.
Flooring:
Marble
Details:
Living room
Level:
1st level/Ground floor
Dimensions:
32'7" X 27' irr.
Flooring:
Wood
Details:
Dining room
Level:
1st level/Ground floor
Dimensions:
19'5" X 15'5" irr.
Flooring:
Wood
Details:
Kitchen
Level:
1st level/Ground floor
Dimensions:
34'3" X 16'9" irr.
Flooring:
Marble
Details:
Dinette
Level:
1st level/Ground floor
Dimensions:
20'4" X 11'6" irr.
Flooring:
Marble
Details:
Powder room
Level:
1st level/Ground floor
Dimensions:
6'2" X 4'2" irr.
Flooring:
Marble
Details:
Family room
Level:
1st level/Ground floor
Dimensions:
20'11" X 18'10" irr.
Flooring:
Wood
Details:
Primary bedroom
Level:
2nd level
Dimensions:
18'11" X 12'6" irr.
Flooring:
Carpet
Details:
Walk-in closet
Level:
2nd level
Dimensions:
20' X 11'8" irr.
Flooring:
Carpet
Details:
Walk-in closet
Level:
2nd level
Dimensions:
14' X 7'3" irr.
Flooring:
Wood
Details:
Salle de bain attenante
Level:
2nd level
Dimensions:
13'6" X 9'7" irr.
Flooring:
Marble
Details:
Bedroom
Level:
2nd level
Dimensions:
19'9" X 12'6" irr.
Flooring:
Carpet
Details:
Salle de bain attenante
Level:
2nd level
Dimensions:
8'8" X 8'5" irr.
Flooring:
Marble
Details:
Den
Level:
2nd level
Dimensions:
14'8" X 10'5" irr.
Flooring:
Carpet
Details:
Office
Level:
2nd level
Dimensions:
20'10" X 19' irr.
Flooring:
Wood
Details:
Bedroom
Level:
3rd level
Dimensions:
21'4" X 15'2" irr.
Flooring:
Carpet
Details:
Bathroom
Level:
3rd level
Dimensions:
8'9" X 7'4" irr.
Flooring:
Tiles
Details:
Bedroom
Level:
3rd level
Dimensions:
14'9" X 11'11" irr.
Flooring:
Carpet
Details:
Bathroom
Level:
3rd level
Dimensions:
9'11" X 7'4" irr.
Flooring:
Marble
Details:
Playroom
Level:
3rd level
Dimensions:
25'10" X 16'1" irr.
Flooring:
Wood
Details:
Bathroom
Level:
Basement 1
Dimensions:
7'1" X 5'9" irr.
Flooring:
Tiles
Details:
+ Sauna
Family room
Level:
Basement 1
Dimensions:
18'3" X 14'11" irr.
Flooring:
Carpet
Details:
Laundry room
Level:
Basement 1
Dimensions:
10'11" X 7'3" irr.
Flooring:
Tiles
Details:
Salle de jeux/gym
Level:
Basement 1
Dimensions:
27'1" X 17' irr.
Flooring:
Tiles
Details:
Mudroom
Level:
Basement 1
Dimensions:
19'2" X 16'8" irr.
Flooring:
Tiles
Details:
Characteristics
Heating System
Forced air, Electric baseboard units, Radiant
Heating Energy
Heating oil, Dual energy, Electricity
Fireplace-Stove
Gas stove, Gas fireplace
Property or unit amenity
Sauna, Alarm system, Central air conditioning, Central vacuum cleaner system installation, Backup Generator, Private balcony, Private yard, Fire detector (O), Electric garage door opener, Outdoor storage space
Water Supply
Municipality
Sewage System
Municipality
Financial details
Municipal assessment (2025)
- Lot assessment
- $ 4,180,400
- Building assessment
- $ 7,224,700
- Total
- $ 11,405,100
Taxes
- Municipal (2025)
- $ 73,080
- School (2025)
- $ 9,360
- Total
- $ 82,440
Inclusions and exclusions
Inclusions
All window treatments, built-in bar, pool systems (2024), pool heater, all pool accessories, entrance fountain, all kitchen appliances (fridge, stove, dishwasher), washer & dryer.
Exclusions
All TVs, furniture, light fixtures, and artwork.
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