309 21 Upper Duke Crescent in Markham: Unionville Condo Apartment for sale : MLS®# N12890388
Searching for Markham condos for sale? This fast-growing city offers an exciting mix of modern developments, excellent transit, and diverse communities—making it a great place to call home for first-time buyers, downsizers, and investors.
Bright and spacious 1+Den, 2-bathroom suite with south exposure in the heart of vibrant Downtown Markham. This well-designed unit features 9 ft ceilings, large windows, and a walk-out balcony that fills the space with natural light. The open-concept living and dining area iscomplemented by laminate flooring and a modern kitchen with granite countertops, stainless steel appliances, a breakfast bar, and ample cabinetry. The primary bedroom includes a 4-piece ensuite bathroom and built in closet organizer, while the versatile den can easily function as a second bedroom, office, or guest space. With two full bathrooms and a functional layout, the suite offers both comfort and flexibility for everyday living. Conveniently located close to Hwy 7, 404 & 407, Viva Transit, GO Station, Civic Centre, Markham Convention Centre, YMCA, York University campus, and the Downtown Markham shopping and entertainment district. Enjoy excellent building amenities including 24-hour concierge, fitness centre, virtual golfsimulator, billiards room, theatre room, party room, guest suites, and more...
Property Type:
Residential Condo & Other
Property Sub Type:
Condo Apartment
Property Attached:
Yes
Home Style:
Apartment
Total Approx Floor Area:
700-799
Exposure:
South
Bedrooms:
1+1
Bathrooms:
2.0
Kitchens:
1
Bedrooms Above Grade:
1
Bedrooms Below Grade:
1
Kitchens Above Grade:
1
# Main Level Bedrooms:
0
# Main Level Bathrooms:
0
Rooms Above Grade:
4
Rooms Below Grade:
1
Rooms:
5
Heating type:
Forced Air
Heating Fuel:
Gas
Cooling:
Yes
Storey:
3
Balcony:
Open
Basement:
None
Fireplace/Stove:
No
Attached Garage:
Yes
Garage:
Underground
Garage Spaces:
1.0
Parking Features:
Underground
Parking Type:
Owned
Parking Spaces:
0
Total Parking Spaces:
1.0
Parking Spot #1:
#61
Locker Level:
Lvl B
Locker Unit:
#223
Locker:
Owned
Family Room:
No
Possession Details:
60/90/TBD
HST Applicable To Sale Price:
Not Subject to HST
Maintenance Fee:
$583.41
Maintenance fees include:
CAC Included, Common Elements Included, Heat Included, Building Insurance Included, Parking Included, Water Included
Taxes:
$2,283 /
2025
Assessment:
$- /
-
York
Markham
Unionville
Electric Car Charger
Air Exchanger, Built-In Oven, Carpet Free, Storage Area Lockers, Ventilation System
Concierge/Security
Yes-with Restrictions
Stainless steel fridge, stove, built-in dishwasher, range hood, stacked clothes washer and dryer, all electrical light fixtures and window coverings. One parking space and one locker included.
Brick, Concrete
Bike Storage, Guest Suites, Gym, Party Room/Meeting Room, Visitor Parking, Media Room
Data was last updated March 18, 2026 at 12:15 PM (UTC)
Area Statistics
Listings on market:
136
Avg list price:
$599,000
Min list price:
$399,000
Max list price:
$2,499,800
Avg days on market:
34
Min days on market:
1
Max days on market:
503
These statistics are generated based on the current listing's property type
and located in
Unionville. Average values are
derived using median calculations. This data is not produced by
the MLS® system.
• Affordable alternative to detached homes in the GTA • Walkable access to restaurants, shops, and entertainment • Excellent public transit via GO stations, VIVA, and YRT • Strong rental demand and resale value • Safe, diverse communities with top-ranked schools and services
Markham Condos – What to Expect
Markham’s condo market includes new and established buildings in Unionville, Downtown Markham, and beyond, featuring:
• Open-concept floor plans with 1 to 3 bedroom options • Balconies, modern kitchens, and in-suite laundry • Amenities like gyms, pools, party rooms, and concierge services • Secure buildings with underground parking and storage lockers
Start Your Markham Condo Search Today
View the latest Markham condos for sale and connect with our expert team for personalized help, private showings, and financing guidance. Whether you’re investing or moving in, we’ll help you make a smart choice in Markham.
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FAQs – Markham Condos for Sale
1. What’s the average price for a condo in Markham? Prices typically range from $600,000 for 1-bedroom units to over $1 million for larger 3-bedroom or penthouse condos.
2. Is Markham good for condo investors? Yes. Markham has strong rental demand due to its tech industry, schools, and transit infrastructure.
3. Where are condos most commonly located in Markham? Most condos are found in areas like Downtown Markham, Unionville, Highway 7 corridor, and near GO stations.
4. Are there pre-construction condos available in Markham? Yes. There are several new developments offering pre-construction units with customizable features and builder incentives.