166 Arnold Avenue, Thornhill

166 Arnold Avenue
166 Arnold Avenue
166 Arnold Avenue
1/2
5+1
 bed
9
 bath
11
 parking
5000 - 65535
 sqft
Detached
$3,998,000
For Sale
45 days
 on site
$3,998,000
Click to open the pre-gallery to get the direction
Size
-
Lot size
16031 sqft
Street frontage
-
Possession
Flexible
Price per sqft
$61 - $800
Taxes
$20,149 (2025)
Parking Type
-
Style
2-Storey
See what's nearby
Description
A rare opportunity to own a distinguished estate on prestigious Arnold Avenue in the heart of Prime Old Thornhill. Set on an exceptional 100 x 160 ft lot, this stately stone-front two-storey residence offers 5 spacious bedrooms, 9 washrooms, soaring ceilings, and an abundance of natural light. Multiple skylights enhance the bright, elegant interior, while expansive principal rooms are designed for refined family living and grand entertaining. A 3-car garage, circular interlocked driveway, and secondary service entrance add exceptional functionality. The private, sun-filled backyard creates a serene setting with outstanding privacy. Nestled on one of Thornhill's most prestigious streets, this remarkable estate offers timeless elegance in an unrivalled location.
Broker: RE/MAX REALTRON REALTY INC.
MLS®#: N13659804
Property details
Parking:
11
Parking type:
-
Property type:
Detached
Heating type:
Forced Air
Style:
2-Storey
MLS Size:
5000-65535 sqft
Lot front:
100 Ft
Lot depth:
159 Ft
Listed on:
Aug 10, 2026
Show all details
Rooms
LevelNameSizeFeatures
Main
Family Room
18.9 x 19.8 ft
Basement
Bedroom
0.0 x 0.0 ft
Basement
Recreation
20.0 x 20.0 ft
Show all
Instant estimate:
orto view instant estimate
$591,682
higher than listed price
i
High
$4,795,888
Mid
$4,589,682
Low
$4,380,131
Have a home? See what it's worth with an instant estimate

Use our AI-assisted tool to get an instant estimate of your home's value, up-to-date neighbourhood sales data, and tips on how to sell for more.

206 Arnold Avenue
1/35
$4,158,000
49 days
206 Arnold Avenue
5+3BD
6BA
13 Parking
5,000-65,535 sqft
MLS#: N13647542
SUTTON GROUP-ADMIRAL REALTY INC.
49 days
87 Arnold Avenue
1/40
$4,190,000
174 days
87 Arnold Avenue
5+2BD
7BA
9 Parking
5,000-65,535 sqft
MLS#: N12955980
MANORLEAD GROUP INC.
174 days
75 Arnold Avenue
1/50
$4,380,000
42 days
75 Arnold Avenue
5+2BD
7BA
15 Parking
5,000-65,535 sqft
MLS#: N13673256
REMAX YOUR COMMUNITY REALTY
42 days
45 Crestwood Road
1/49
$3,788,000
44 days
45 Crestwood Road
4+1BD
7BA
7 Parking
5,000-65,535 sqft
MLS#: N13662304
SOTHEBY'S INTERNATIONAL REALTY CANADA
44 days

About 166 Arnold Avenue

166 Arnold Avenue is a Thornhill detached house for sale. It has been listed at $3998000 since August 2026. This detached house has 5+1 beds, 9 bathrooms and is 5000-65535 sqft. Situated in Thornhill's Crestwood-Yorkhill neighbourhood, Uplands, Brownridge, Thornhill and Beverley Glen are nearby neighbourhoods.

166 Arnold Ave, Vaughan is only a 4 minute walk from Sips Coffee House for that morning caffeine fix and if you're not in the mood to cook, My Zaidys Pizza, Golden Chopsticks and Dr Laffa are near this detached house. For groceries there is Sobeys which is a 4-minute walk.

Living in this Crestwood-Yorkhill detached house is easy. There is also Atkinson Ave at Rodeo Dr Bus Stop, not far, with route Bathurst North nearby.