21 Upper Duke Cres #401 is a 1-bedroom, 1-bathroom condo in Markham, listed for $420,000. It has 600-699 sq ft of living space.
1Spacious 1 Bed, 1 Bath Apartment in Desirable Unionville, Markham with Parking and Locker.
2Open-Concept Layout - Perfect for Entertaining w/9ft Ceilings, Modern Kitchen with Stainless Steel Appliances and Breakfast Bar, Spacious Bedroom, and Tasteful full Bathroom.
3Walk-Out To The Private Balcony Offering View of Downtown Markham.
You Won't Want to Miss this! Spacious 1 Bed, 1 Bath Apartment in Desirable Unionville, Markham with Parking and Locker. Open-Concept Layout - Perfect for Entertaining w/9ft Ceilings, Modern Kitchen with Stainless Steel Appliances and Breakfast Bar, Spacious Bedroom, and Tasteful full Bathroom. Tons of Storage. Walk-Out To The Private Balcony Offering View of Downtown Markham. Only steps away from Shopping, Restaurants, Cinema, Transit, GO station, Hwy 407, Hwy 404 and York university.
1 bedroom, 1 bathroom, about 600 sq ft, works out to roughly $700 per square foot, the bed-to-bath ratio is generous. Chat with Zara if you'd like a deeper read on whether this condo fits your budget and timing.
Inside 21 Upper Duke Cres #401
Every detail from the listing, in one place.
Type
Condo
Style
Apartment
Living space
600-699 sq ftas stated on the listing
Parking
1 spaceYes garage
Basement
None
Features & systems
Parking & garage
Garage
Yes
Parking spaces
1
Interior
Basement
None
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
Apartment
Property class
Condo Apartment
21 Upper Duke Cres #401 Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
Independent mortgage broker · OAC · rates subject to change and underwritingMortgage Squad →
Referral disclosure: Summitly may refer you to Mortgage Squad Advisors, an affiliated mortgage partner. You are free to choose any lender or mortgage professional.
Monthly cost
Enter a rate to see the monthly cost
An estimate, not a quote. Utilities and insurance are extra.
Affordability calculator
Estimated monthly payment
$2,063
/mo
based on the purchase price of $420,000
$84,000 cash
$336,000 financed
$283,000 total interest
Principal54%$336,000
Interest46%$283,000
20% down · 25-yr amortization · 5.50% rate. Principal & interest only — taxes, condo fees, and insurance not included.
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Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.
Rental income potential
Est. monthly rent
low–high
Gross yield
rent × 12 ÷ price
Cap rate (est.)
net of tax + fees
Summitly AI estimate for discussion only — not from TRREB or the MLS® feed, and not an appraisal or investment advice. Yield and cap rate are derived from the estimated rent versus the asking price.
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Similar homes for sale nearby in Markham
Other 1-bed homes for sale in Markham around $420K.
Average days on market30Homes sold in about 30 days on average.
Sale-to-list ratio99.4%On average, homes sold below asking.
Active listings1,507Homes for sale here right now.
Median vs prior 90 days+3.0%Compared with Apr 29 – Jul 28, 2026: prices up.
Based on 1,334 sales from Jul 28 – Oct 26, 2026 (823 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
More in this building
3 for sale · 1 for rent at 21 Upper Duke Cres — plus its sale and lease history.
21 Upper Duke Cres #401 is listed at $420,000 (MLS® N13753626). Summitly updates the price as soon as the MLS® record changes.
Is $420,000 a good price for 21 Upper Duke Cres #401?
Summitly rates it Fair Price: the asking price is Within 3% below to 5% above Zara's estimate, an estimate built from recent sales in Markham. The rating is an automated opinion, not an appraisal; "What's it worth?" on this page shows how it is worked out. See Zara's estimate
Has the price of 21 Upper Duke Cres #401 changed?
Yes — it was first listed at $485,000 and is now $420,000, a drop of $65,000 (13.4%).
How many bedrooms and bathrooms does 21 Upper Duke Cres #401 have?
21 Upper Duke Cres #401 has 1 bedroom and 1 bathroom, with about 600–699 square feet of living space. It is a condo in Markham.
Is 21 Upper Duke Cres #401 close to transit?
The nearest rapid-transit station is Unionville GO Station (Stouffville GO), about 1.2 km (about a 15-minute walk) in a straight line. Milliken GO Station is about 3.7 km, and Centennial GO Station is about 4.2 km. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
How much would the monthly mortgage be on 21 Upper Duke Cres #401?
About $2,063 a month — principal and interest on $420,000 with 20% down ($84,000), a 25-year amortization and an assumed 5.5% interest rate. The mortgage calculator on this page lets you change the down payment, amortization and rate.
How does 21 Upper Duke Cres #401 compare with other homes in Markham?
Its asking price of $420,000 is about 62% below the median sold price in Markham over the last 90 days, $1,095,000, across 1,334 closed sales on the TRREB MLS®. A city median mixes every type and size of home, so the comparable sales on this page are the closer guide.
Has 21 Upper Duke Cres #401 been sold before?
Summitly has no earlier MLS® sale or lease of 21 Upper Duke Cres #401 on record from the last two years. Older records aren't shown under TRREB rules.
Where is 21 Upper Duke Cres #401?
21 Upper Duke Cres #401 is in Markham, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 21 Upper Duke Cres #401 been on the market?
48 days — 21 Upper Duke Cres #401 was listed on September 8, 2026.
What is the price per square foot of 21 Upper Duke Cres #401?
About $601 to $700 per square foot: the asking price of $420,000 over the 600–699 sq ft the listing gives as its size range.
Does 21 Upper Duke Cres #401 have parking or a garage?
Yes — the listing gives 1 parking space. Garage: Yes.
