21 Mercer St is a 3-bedroom, 2-bathroom detached home in Stratford, listed for $699,900. It has 1100-1500 sq ft of living space.
1Upstairs features a primary bedroom with a huge walk-in closet, two additional generously sized bedrooms, and a beautifully updated bathroom.
2The finished basement provides valuable additional living space, perfect for family movie nights, a recreation room, an office, or accommodating overnight guests.
3An additional updated bathroom/laundry room adds even more functionality to this versatile space.
Get ready to fall in love with this beautifully updated century home perfectly situated in the desirable Avon Ward, just blocks from the river and downtown! Step inside through the inviting enclosed porch and discover a bright and welcoming main floor designed for comfortable everyday living and entertaining. The spacious living room flows into a separate dining room, creating the perfect setting for family dinners and gatherings, and continues into an oversized and updated chef-inspired kitchen featuring quartz countertops, generous prep space, storage galore, and is truly the heart of the home. Upstairs features a primary bedroom with a huge walk-in closet, two additional generously sized bedrooms, and a beautifully updated bathroom. The finished basement provides valuable additional living space, perfect for family movie nights, a recreation room, an office, or accommodating overnight guests. An additional updated bathroom/laundry room adds even more functionality to this versatile space. Step outside to discover a large, fully fenced backyard offering exceptional privacy and plenty of room for outdoor entertaining, gardening, relaxing, or enjoying time with family, friends, and pets. The detached garage provides excellent flexibility for additional storage or a workshop. Unbeatable location, incredible outdoor space, lots of parking, and updates throughout, this home offers so much love. Situated on a very quiet street with the river and downtown just moments away, this charming home is ready to welcome its next chapter!
3 bedrooms, 2 bathrooms, about 1,100 sq ft, works out to roughly $636 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
Inside 21 Mercer St
Every detail from the listing, in one place.
Type
Detached
Style
1 1/2 Storey
Living space
1100-1500 sq ftas stated on the listing
Parking
5 spacesYes garage
Basement
Full, Finished
Features & systems
Parking & garage
Garage
Yes
Parking spaces
5
Interior
Basement
Full · Finished
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
1 1/2 Storey
Property class
Detached
21 Mercer 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® X14081032$699,900
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 21 Mercer St Compares to the Stratford Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
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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
$3,438
/mo
based on the purchase price of $699,900
$139,980 cash
$559,920 financed
$471,600 total interest
Principal54%$559,920
Interest46%$471,600
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 Stratford
Other 3–4 bed homes for sale in Stratford around $700K.
Average days on market42Homes sold in about 42 days on average.
Sale-to-list ratio98.2%On average, homes sold below asking.
Active listings216Homes for sale here right now.
Median vs prior 90 days−0.9%Compared with Apr 18 – Jul 17, 2026: prices down.
Based on 177 sales from Jul 17 – Oct 15, 2026 (128 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
21 Mercer St is listed at $699,900 (MLS® X14081032). Summitly updates the price as soon as the MLS® record changes.
Is $699,900 a good price for 21 Mercer St?
Summitly rates it Well Above Market: the asking price is 15% or more above Zara's estimate, an estimate built from recent sales in Stratford. 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 Mercer St changed?
No — 21 Mercer St is still listed at its original asking price of $699,900.
How many bedrooms and bathrooms does 21 Mercer St have?
21 Mercer St has 3 bedrooms and 2 bathrooms, with about 1,100–1,500 square feet of living space. It is a detached home in Stratford.
Is 21 Mercer St close to transit?
The nearest rapid-transit station is Stratford GO Station (Kitchener GO), about 1.6 km (about a 20-minute walk) in a straight line. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
How much would the monthly mortgage be on 21 Mercer St?
About $3,438 a month — principal and interest on $699,900 with 20% down ($139,980), 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.
Are there open houses at 21 Mercer St?
Yes — Saturday, October 17, 10:30 AM – 12:00 PM; Saturday, October 17, 1:00 PM – 2:30 PM. Open-house times come from the listing brokerage and can change, so check this page before you go, or book a private viewing.
How does 21 Mercer St compare with other homes in Stratford?
Its asking price of $699,900 is about 22% above the median sold price in Stratford over the last 90 days, $575,000, across 177 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 Mercer St been sold before?
Summitly has no earlier MLS® sale or lease of 21 Mercer St on record from the last two years. Older records aren't shown under TRREB rules.
Where is 21 Mercer St?
21 Mercer St is in Stratford, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 21 Mercer St been on the market?
21 Mercer St was listed today (October 15, 2026).
What is the price per square foot of 21 Mercer St?
About $467 to $636 per square foot: the asking price of $699,900 over the 1,100–1,500 sq ft the listing gives as its size range.