Priced to Sell! Welcome to 21 Summerlea St! Discover this spacious 5+1 bedroom detached home located in the highly sought-after Middlefield community. Situated on a generous lot, this solid brick home seamlessly blends elegance and functionality, featuring hardwood flooring throughout. The backyard offers an enclosed second kitchen, perfect for those who love to cook and entertain. The bright family room provides a warm gathering space, complete with a cozy gas fireplace. The second level boasts five generously sized bedrooms, including a primary retreat with a walk-in closet and 4-piece ensuite. The finished basement is ideal for entertaining, showcasing a wet bar with mirrored backsplash overlooking a large recreation room, along with an additional bedroom and washroom-adding exceptional value. Garage, Driveway and Roof (2024). Prime location! Close to top-ranked schools, places of worship, Pacific Mall, shopping, GO Train, TTC, and Hwy 401/407. This gem won't last-schedule your showing today!
5 bedrooms, 3 bathrooms, about 2,000 sq ft, works out to roughly $625 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
Inside 21 Summerlea St
Every detail from the listing, in one place.
Type
Detached
Style
2-Storey
Living space
2000-2500 sq ftas stated on the listing
Lot size
32.81 x 127.95 Feet
Parking
4 spacesYes garage
Basement
Finished
Features & systems
Parking & garage
Garage
Yes
Parking spaces
4
Interior
Basement
Finished
Lot & land
Lot dimensions
32.81 x 127.95 Feet
Lot size (sqft)
0
Listing & possession
Property style
2-Storey
Property class
Detached
21 Summerlea St Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® N12839550$1,250,000
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 21 Summerlea St Compares to the Markham Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
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
$6,141
/mo
based on the purchase price of $1,250,000
$250,000 cash
$1,000,000 financed
$842,262 total interest
Principal54%$1,000,000
Interest46%$842,262
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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Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Estimated values, AI insights, calculator results, and rental projections shown on this page are generated by Summitly and are not provided by, reviewed by, or sourced from TRREB, the MLS®, or the listing brokerage; they are not appraisals or opinions of value. 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 Coldwell Banker® name and logo are trademarks of Coldwell Banker Real Estate LLC.
Similar homes for sale nearby in Markham
Other 4–6 bed homes for sale in Markham around $1.3M.
Average days on market31Homes sold in about 31 days on average.
Sale-to-list ratio99.2%On average, homes sold below asking.
Active listings1,485Homes for sale here right now.
Median vs prior 90 days+0.4%Compared with May 13 – Aug 11, 2026: prices up.
Based on 1,262 sales from Aug 11 – Nov 9, 2026 (880 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
21 Summerlea St is listed at $1,250,000 (MLS® N12839550). Summitly updates the price as soon as the MLS® record changes.
Is $1,250,000 a good price for 21 Summerlea St?
Summitly rates it Excellent Deal: the asking price is 10% or more below 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 Summerlea St changed?
No — 21 Summerlea St is still listed at its original asking price of $1,250,000.
How many bedrooms and bathrooms does 21 Summerlea St have?
21 Summerlea St has 5 bedrooms and 3 bathrooms, with about 2,000–2,500 square feet of living space. It is a detached home in Markham.
Is 21 Summerlea St close to transit?
The nearest rapid-transit station is Centennial GO Station (Stouffville GO), about 3.2 km in a straight line. Markham GO Station is about 3.8 km, and Unionville GO Station is about 3.8 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 Summerlea St?
About $6,141 a month — principal and interest on $1,250,000 with 20% down ($250,000), 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 Summerlea St compare with other homes in Markham?
Its asking price of $1,250,000 is about 15% above the median sold price in Markham over the last 90 days, $1,084,000, across 1,262 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 Summerlea St been sold before?
Summitly has no earlier MLS® sale or lease of 21 Summerlea St on record from the last two years. Older records aren't shown under TRREB rules.
Where is 21 Summerlea St?
21 Summerlea St is in Markham, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 21 Summerlea St been on the market?
251 days — 21 Summerlea St was listed on March 3, 2026.
What is the price per square foot of 21 Summerlea St?
About $500 to $625 per square foot: the asking price of $1,250,000 over the 2,000–2,500 sq ft the listing gives as its size range.
Does 21 Summerlea St have parking or a garage?
Yes — the listing gives 4 parking spaces. Garage: Yes.
