Backs onto conservation, connects to the walking trail, and gives you over 3,700 square feet of finished living space. Welcome to 17 Mason Drive in Alliston, a 4 bedroom, 5 bathroom home in the Treetops master-planned community, set on a premium lot with no sidewalk in front. The curb appeal is clean and classic, with a brick exterior, stone accents, covered entry, and double car garage. Inside, the home opens with a bright foyer, high ceilings, large windows, polished tile, rich hardwood, and a carpet-free layout. The main floor has the spaces people ask for most: a dedicated office, formal dining room, living room with fireplace, and a well-planned kitchen with quartz countertops, stainless steel appliances, upgraded cabinetry, servery, centre island, and breakfast bar. Upstairs, all four bedrooms connect to an ensuite or semi-ensuite bathroom, giving each room better privacy and function. The primary suite adds generous space, dual walk-in closets, and a private ensuite, while second-floor laundry keeps daily routines simple. The finished look-out basement feels like part of the home, not an afterthought. South-facing natural light fills the space, making it ideal for movie nights, workouts, guests, play space, or a second living area. A large storage area gives you useful space now, with potential to finish more later. Out back, the setting makes the home feel different. You get stone patio space, garden beds, room to sit and unwind, and conservation and trail access directly behind you. Treetops offers approximately 7 km of walking trails, parks, and playgrounds, with Nottawasaga Resort nearby for golf and vacation-style amenities. Highway 400 is about 10 minutes away, with easy access to Barrie and Vaughan.
Property Type:
Residential Freehold
Property Sub Type:
Detached
Home Style:
2-Storey
Total Approx Floor Area:
3000-3500
Lot Depth:
109'11"33.5 m
Lot Frontage:
44'11"13.7 m
Lot Shape:
Rectangular
Direction Faces:
South
Bedrooms:
4
Bathrooms:
5.0
Water supply:
Municipal
Kitchens:
1
Bedrooms Above Grade:
4
Kitchens Above Grade:
1
Rooms Above Grade:
10
Rooms Below Grade:
1
Heating type:
Forced Air
Heating Fuel:
Gas
Fireplaces:
1
Foundation:
Concrete, Poured Concrete
Roof:
Asphalt Shingle
Basement:
Full, Finished
Fireplace Features:
Electric, Family Room, Natural Gas
Fireplace/Stove:
Yes
Garage:
Built-In
Garage Spaces:
2.0
Parking Features:
Private Double
Parking Spaces:
4
Total Parking Spaces:
6.0
Family Room:
Yes
Possession Details:
TBD
Pool:
None
Link:
No
HST Applicable To Sale Price:
Not Subject to HST
Assessment Year:
2025
Taxes:
$5,821 /
2025
Assessment:
$- /
2025
Simcoe
New Tecumseth
Rural New Tecumseth
Fenced Yard, Greenbelt/Conservation, Golf, Park, School Bus Route
Data was last updated May 12, 2026 at 04:15 PM (UTC)
Area Statistics
Listings on market:
62
Avg list price:
$1,094,450
Min list price:
$340,000
Max list price:
$8,900,000
Avg days on market:
35
Min days on market:
5
Max days on market:
710
These statistics are generated based on the current listing's property type
and located in
Rural New Tecumseth. Average values are
derived using median calculations. This data is not produced by
the MLS® system.
This website may only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate of the type being offered via the website.
The data relating to real estate on this website comes in part from the MLS® Reciprocity program of the PropTx MLS®. The data is deemed reliable but is not guaranteed to be accurate.