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.
Total of 12 rooms (includes bedrooms and living areas)
Heating & cooling
Natural gas forced air heating
Central air conditioning
Exterior features
Asphalt roof
North-facing
Private yard/lot (approx. 100 x 150 feet)
Home design
Detached single-family residence
2 storeys
Parking
Total 11 parking spaces
3 covered spaces
Attached garage
Construction
Stone construction
Utilities
Public water
Sale and tax history for 166 Arnold Ave
Sale History
Tax History
Date
Event
Price
TREB #N13659804
Aug 10, 2026
Listed
$3,998,000
TREB #N11917166
May 29, 2025
Delisted
—
Jan 9, 2025
Listed
$4,599,999
+35
A Remarkable Estate In The Sought-After Community Of Thornhill. Sitting On An Impressive 100.36 Ft X 159.74 Ft Lot, This 5 Bedroom Home Offers A Wealth Of Potential And Character. Features An Elegant Formal Living And Dining Rooms, A Cozy Family Room, And A Generously Sized Kitchen. Bright Breakfast Area Overlooking Beautifully Landscaped Gardens. Primary Bedroom Ensuite Includes a Jacuzzi Tub, His & Hers Sinks, and Bidet. Hardwood Flooring Throughout, Home Office, Fitness Room, Sauna, And A Three-Car Garage With Ample Storage. Huge Backyard Perfect For Outdoor Entertainment. Walking Distance To Synagogues, Promenade Mall, Grocery Stores, Public Transit, All Major Banks, Community Center and Much More. This Property's Rare Combination Of Lot Size, Character, And Location Makes It An Exceptional Find.
TREB #N9051016
Jul 23, 2024
Listed
$4,750,000
TREB #N8377370
May 27, 2024
Listed
$5,290,000
As the MLS and public records start to fill up, we'll list the details here.