100 Queenston St is a 6-bedroom, 2-bathroom duplex in St. Catharines, listed for $299,900. It has 1500-2000 sq ft of living space.
1Looking for a property with serious income potential? 100 Queenston Street delivers with a spacious 2-storey layout, 3 bedrooms, 2 bathrooms, multiple kitchens, a deep lot, and ample parking.
2Close to downtown, transit, schools, and everyday amenities.
Looking for a property with serious income potential? 100 Queenston Street delivers with a spacious 2-storey layout, 3 bedrooms, 2 bathrooms, multiple kitchens, a deep lot, and ample parking. Perfect for investors, multi-generational families, or buyers looking to offset their mortgage with rental income. Close to downtown, transit, schools, and everyday amenities. Opportunities like this don't last long!
6 bedrooms, 2 bathrooms, about 1,500 sq ft, works out to roughly $200 per square foot. Chat with Zara if you'd like a deeper read on whether this duplex fits your budget and timing.
Inside 100 Queenston St
Every detail from the listing, in one place.
Type
Duplex
Style
2-Storey
Living space
1500-2000 sq ftas stated on the listing
Parking
2 spaces
Basement
Full, Unfinished
Features & systems
Parking & garage
Parking spaces
2
Interior
Basement
Full · Unfinished
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
2-Storey
Property class
Duplex
100 Queenston 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® X14119542$299,900
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 100 Queenston St Compares to the St. Catharines 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
$1,473
/mo
based on the purchase price of $299,900
$59,980 cash
$239,920 financed
$202,076 total interest
Principal54%$239,920
Interest46%$202,076
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.
For homeowners nearby
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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.
Keep looking near 100 Queenston St
Homes for sale in St. Catharines
Every active St. Catharines MLS® listing, updated all day.
Average days on market38Homes sold in about 38 days on average.
Sale-to-list ratio96.4%On average, homes sold below asking.
Active listings749Homes for sale here right now.
Median vs prior 90 days0.0%Compared with Apr 30 – Jul 29, 2026.
Based on 575 sales from Jul 29 – Oct 27, 2026 (503 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
100 Queenston St is listed at $299,900 (MLS® X14119542). Summitly updates the price as soon as the MLS® record changes.
Is $299,900 a good price for 100 Queenston St?
Summitly rates it Excellent Deal: the asking price is 10% or more below Zara's estimate, an estimate built from recent sales in St. Catharines. 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 100 Queenston St changed?
No — 100 Queenston St is still listed at its original asking price of $299,900.
How many bedrooms and bathrooms does 100 Queenston St have?
100 Queenston St has 6 bedrooms and 2 bathrooms, with about 1,500–2,000 square feet of living space. It is a duplex in St. Catharines.
Is 100 Queenston St close to transit?
The nearest rapid-transit station is St. Catharines GO Station (Lakeshore West GO), about 2.5 km 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 100 Queenston St?
About $1,473 a month — principal and interest on $299,900 with 20% down ($59,980), 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.
How does 100 Queenston St compare with other homes in St. Catharines?
Its asking price of $299,900 is about 45% below the median sold price in St. Catharines over the last 90 days, $550,000, across 575 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 100 Queenston St been sold before?
Summitly has no earlier MLS® sale or lease of 100 Queenston St on record from the last two years. Older records aren't shown under TRREB rules.
Where is 100 Queenston St?
100 Queenston St is in St. Catharines, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 100 Queenston St been on the market?
100 Queenston St was listed today (October 27, 2026).
What is the price per square foot of 100 Queenston St?
About $150 to $200 per square foot: the asking price of $299,900 over the 1,500–2,000 sq ft the listing gives as its size range.
