St. Catharines, ON · · MLS® X14120736Updated
$3,750,000Est. $18,423/mo mortgage
88 Queenston St is a 21-bedroom, 11-bathroom multiplex in St. Catharines, listed for $3,750,000. It has 5000 + sq ft of living space.
Coldwell Banker Summit Realty, BrokerageZara is an AI virtual agent. Advisors are licensed REALTORS® at Coldwell Banker Summit Realty, Brokerage.
Located in a downtown location benefiting from ongoing revitalization and proximity to key redevelopment projects, 88 Queenston offers investors both immediate yield and long-term growth. This is a rare opportunity to acquire a well-maintained, income-producing apartment building with significant embedded potential in downtown St. Catharines.The property delivers stable, in-place cash flow from 21 residential units, supported by a quiet tenant profile, strong historical ownership oversight, and extensive recent capital improvements. There is a large scale of untapped potential - the main floor (approximately 5,000 square feet) is currently positioned for either commercial leasing or residential conversion, while the basement offers an additional 3,500+ square feet of usable space with multiple access points. Previous ownership has advanced conceptual plans to further intensify the site through the addition of new residential units with dedicated entrances, Located in a rapidly evolving neighbourhood near key redevelopment nodes, 88 Queenston offers investors both immediate yield and long-term growth.
21 bedrooms, 11 bathrooms, about 5,000 sq ft, works out to roughly $750 per square foot. Chat with Zara if you'd like a deeper read on whether this multiplex fits your budget and timing.
Every detail from the listing, in one place.
Parking & garage
Interior
Lot & land
Listing & possession
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
Zara’s estimate
Summitly estimate, not from TRREB, the MLS® or the listing brokerage. Not an appraisal. How it works
Closed sales on the TRREB MLS®.
Full St. Catharines market reportTransit, schools, parks and everyday places near this home. Select any place to open it on Google Maps.
What it could cost each month, today's rates from our mortgage partner, and what it could return as a rental.
Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.
Lock in a low rate before you offer
Compare today's rates across lenders, lock yours in, and get pre-qualified in about 2 minutes.
Referral disclosure: Summitly may refer you to Mortgage Squad Advisors, an affiliated mortgage partner. You are free to choose any lender or mortgage professional.
Enter a rate to see the monthly cost
An estimate, not a quote. Utilities and insurance are extra.
20% down · 25-yr amortization · 5.50% rate. Principal & interest only — taxes, condo fees, and insurance not included.
Want rate-drop alerts and a saved shortlist?
Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.
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
Get an instant estimate for your own home, based on recent sales around you. A free account shows the number and emails you the full report.
Free · No obligation · Backed by Coldwell Banker
Book a tour of 88 Queenston St with a licensed buyer's agent
Your agent is usually paid from the seller's side. We'll confirm the co-operating commission on this listing before you sign anything.
Ask about 88 Queenston St day or night. Zara reads this listing and answers in plain words. When you want a person, she hands you to a licensed agent.
Your agent shows you the home, checks the paperwork and negotiates your offer, on your side, not the seller's.
Listing brokerage: COLLIERS INTERNATIONAL NIAGARA LTD., BrokerageMLS® X14120736 · Listing data last updated
Listing data comes from the Toronto Regional Real Estate Board (TRREB) and is deemed reliable but not guaranteed. Shown on Summitly by Coldwell Banker Summit Realty, Brokerage, which is not the listing brokerage. The information provided herein must only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate and may not be used for any commercial purpose or any other purpose. © 2026 Toronto Regional Real Estate Board. All rights reserved.
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.
Homes for sale in St. Catharines
Every active St. Catharines MLS® listing, updated all day.
Curated MLS® searches this property belongs to — same city, same shape of home.
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.
88 Queenston St is listed at $3,750,000 (MLS® X14120736). Summitly updates the price as soon as the MLS® record changes.
Summitly rates it Well Above Market: the asking price is 15% or more above 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
No — 88 Queenston St is still listed at its original asking price of $3,750,000.
88 Queenston St has 21 bedrooms and 11 bathrooms, with about 5,000 square feet of living space. It is a multiplex in St. Catharines.
About $18,423 a month — principal and interest on $3,750,000 with 20% down ($750,000), 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.
Its asking price of $3,750,000 is about 582% above 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.
Summitly has no earlier MLS® sale or lease of 88 Queenston St on record from the last two years. Older records aren't shown under TRREB rules.
88 Queenston St is in St. Catharines, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
88 Queenston St was listed today (October 27, 2026).
About $750 per square foot: the asking price of $3,750,000 over the 5,000 sq ft the listing gives.
Yes — the listing gives 25 parking spaces.
The listing describes the basement as: Full, Partially Finished.
