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Detached for sale at 346 Castan Avenue, Markham - 6 bedroom, 5 bathroom - Photo 1 of 51
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Active

$1,890,000

346 Castan Ave

Markham, ON L3R 4S3

346 Castan Ave, MarkhamListed at $1,890,000. 6 bedroom, 5 bathroom 2-Storey. MLS® N13477084.

6Beds
5Baths
3000-3500sqft
2-Storey
4Parking
$9,417.72 (2025)

What's this home worth?

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Description

Spacious 5-Bedroom Green Park Home in Prestigious South Unionville. Welcome to this sunfilled, south-facing gem in a top-tier school zone! Recently refreshed with new paint, new kitchen cabinet doors, and sleek granite countertops, this home is truly move-in ready. The functional layout features 9-foot ceilings on the main floor and gleaming hardwood throughout. Rare and highly desirable, every bedroom includes an ensuite or semi-ensuite for ultimate privacy. The professionally finished basement offers a self-contained apartment with a separate entrance, perfect for extended family or potential income. Step outside to your extra-deep backyard-a blank canvas to build your private oasis. Unbeatable location within walking distance to Markville High, T&T, Foody Mart, Markville Mall, Pan Am Center, South Unionville Pond, Milne Dam Conservation Park, Go Train and other amenities. Check out this link for seasonal scenery https://youtu.be/SKDZNaSbC4I?si=jb7JNoxb-9fQrd2z

Property Details

Property TypeDetached
Style2-Storey
CommunityVillage Green-South Unionville
Approximate Age16-30
Rooms10+3
Kitchens2
Washrooms5
Square Feet3000-3500 sqft
Lot Size9,388 sq ft
Lot Dimensions44.65 × 214.57 ft
Lot Size Area9,388 sqft (MPAC)
Fronting OnNorth
Dir/Cross StKennedy / Hwy 7
Garage TypeBuilt-In
Garage Parking Spaces2
DrivePrivate Double
Parking Drive Spaces2
Total Parking Spaces4
ExteriorBrick, Stone
RoofAsphalt Shingle
FoundationConcrete
BasementFinished, Separate Entrance
Fireplace FeaturesNatural Gas
Heating TypeForced Air
Heating SourceGas
A/CCentral Air
SewersSewer
Taxes (2025)$9,417.72
HSTIncluded In
SecurityAlarm System, Carbon Monoxide Detectors, Smoke Detector, Monitored, Security System
Other StructuresGarden Shed
Listed Date6/23/2026
Days on Market25 days

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Listing Courtesy of: BAY STREET GROUP INC.

MLS® #N13477084

TRREBMLS®

The listing data is provided under copyright by the Toronto Regional Real Estate Board (TRREB). The listing data is deemed reliable but is not guaranteed accurate by TRREB. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by The Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The trademarks MLS®, Multiple Listing Service® and the associated logos are owned by CREA and identify the quality of services provided by real estate professionals who are members of CREA. Used under license.

© 2026 Toronto Regional Real Estate Board. All rights reserved.

Thinking about living in Markham?

Explore the neighbourhood guide for Markham — market trends, popular areas, buyer tips, and more.

HouseIndex Take: 346 Castan Avenue

This detached (2-Storey) is located in the Village Green-South Unionville neighbourhood of Markham.

The home offers 6+1 bedrooms, 5 bathrooms.

Features include a finished, separate entrance basement, 4 parking spaces including a 2-car garage, a fireplace.

Additional details: lot dimensions of 44.65 × 214.57 feet.

Listed at $1,890,000 CAD with annual property taxes of $9,417.72 (2025).

About Markham Real Estate

This Detached is located in the Village Green-South Unionville community in Markham. Markham is a tech and innovation hub in York Region, home to IBM Canada, AMD, and hundreds of startups along Highway 7. Unionville Main Street offers heritage charm, while newer communities in Cornell and Cathedraltown provide modern family living. The city consistently ranks among the safest in Canada with top-performing schools. Detached homes in Markham are in high demand among families seeking space, privacy, and long-term equity growth.

Tech corridor along Highway 7Historic Unionville Main StreetYork Region's top-ranked schoolsPacific Mall & Markville Shopping Centre
~50 min commute to downtown TorontoWalkability: Moderate — walkable near Unionville and downtown Markham
View full Markham neighbourhood guide →