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For Sale
451 - Downtown, St. Catharines, ON L2R 5J4
From PropTx
$1,250,000
As listed by the seller and their brokerage. It is a request, not a valuation, and nothing tests it until an offer arrives.
From MyNest360
The tools we build on top of the listing, each figure sourced and none of it PropTx data: what the house really costs to hold, what it costs to borrow against, and the inspection to book before your conditions come off.
From PropTx
The price, facts, description and history exactly as the feed states them. Nothing in this section is our own estimate.
The listing does not state a bedroom count.
The listing does not state a bathroom count.
Counts and measurements as the listing states them, not verified by us. Source: PropTx
What comes from PropTx, and what is ours
The price, address, room and size figures, description and days on site are sourced from PropTx and can lag the live listing. The map placement and the cost, offer, insurance and rental tools below are our own work, not PropTx data. Anything we have modelled rather than sourced carries an Est. tag.
This listing's price and status history is available to members
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Prior asking prices, terminations and relists are licensed to registered members only. Nothing here should be read as evidence that the current price is the only price this house has been offered at: it is a limit on who we may show this to, not a finding about the listing.
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Positioned on a prominent downtown corner, 58 Ontario Street presents a rare opportunity for owner-occupiers, investors, or live-work users to acquire a fully vacant 3,528 sq. ft. architecturally distinctive landmark building with exceptional zoning flexibility (C5-92) in the downtown core. Zoning permits a broad range of residential and commercial uses, allowing the property to function as entirely commercial, entirely residential, or mixed-use, while benefiting from the sought-after downtown parking exemption. Currently configured with a beautifully appointed 1,450 sq. ft. commercial main floor and two self-contained residential apartments above, the property offers three income streams with potential gross annual income of approximately $75,000 based on projected market rents, with additional upside through commercial leasing or owner occupancy. Showcasing original millwork, pocket doors, stained and leaded glass, refinished hardwood flooring, and other period details rarely found in commercial properties today, the building seamlessly combines historic character with modern functionality. Additional features include updated washrooms and kitchens, five ductless splits, full basement storage, separate hydro meters, five on-site parking spaces (2 tandem). Located in the heart of Downtown St. Catharines' heritage district, steps from the Performing Arts Centre, Meridian Centre, Brock University's Marilyn I. Walker School, restaurants and cafés, the area continues to benefit from ongoing residential intensification and commercial reinvestment, supporting long-term demand for both residential and commercial space.
Written by the listing brokerage to sell the house. Nothing in it is verified, so take its claims about condition to an inspection, not from it.
1 years, from $7,956 in 2025 to $7,956 in 2025.
Neighbourhood market statistics is available to members
Sign in to see: this figure is available to registered members with a verified account.
Medians, sale-to-list ratios and absorption are computed from sold prices, and they are licensed to registered users only. There is no approximate version of a median that would be honest to show in their place.
Every home of this type in St. Catharines that has sold in the last 3 years.
Contact details for the listing agent are not shown: our current listing agreement licences them to registered users only.
Sourced from: PropTx. Last updated Sep 4, 2026.
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. Listing information is deemed reliable but is not guaranteed accurate by the Toronto Regional Real Estate Board or PropTx.
From MyNest360
None of this is PropTx data. Each figure is our own and carries its source: the true cost to own, the mortgage studio, the inspection plan, and the rest.
At 20% or more there is no CMHC premium.
20% down · 4.65% indicative 5-yr fixed · The number of years the whole balance is paid off over. A longer amortization lowers the monthly payment and raises the total interest.. $7,956 for 2025, from the tax figure stated on the listing, divided by twelve. That is what the current owner pays, as the listing states it. That twelfth is the annual amount levelled across the year and not a payment you will make on any date. How a municipality actually collects it is set out in documents nobody here has read.; heat and utilities estimated. Figures illustrative.
Compare lenders and private optionsIt asks one question first: whether someone is already acting for you. That answer changes who books the visit and who is on your side inside the house.
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Tara McCarthy
Broker, VP Ultra Luxury Division
Every question about this home reaches a licensed broker, not a form.
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Explore the networkSourced from MyNest360
Figures such as 4.79% sample rates and estimates are illustrative only. Verify all details with a licensed professional before making an offer.
The listing does not say whether there is a second dwelling unit here. Other records in this set state it either way, so this is a silence rather than a no.
Listed by COLLIERS INTERNATIONAL NIAGARA LTD..
Listed by CENTURY 21 AVMARK REALTY LIMITED.
Listed by LPT REALTY.
Two figures stand against this house for two different purposes, the asking price and the assessment, so they do not agree and were never meant to. The gap is worked out here rather than left for you to hold in your head.
Nothing of this kind on the record, and nothing here fills it in from an average of other houses.
The figure property tax is apportioned from, valued as of a date that is not today. It is not a market value and no lender treats it as one.
Listed by COLLIERS INTERNATIONAL NIAGARA LTD..
None of these is an appraisal. Your lender orders one of those once an offer is accepted, and it is the figure that decides how much they will actually lend.
At 20% down and 4.65% fixed, the all-in monthly cost works out to $6,599. Every line, the pool and the well included, plus the first-year total, is on the full breakdown.
Listed by CENTURY 21 AVMARK REALTY LIMITED.
Listed by BOSLEY REAL ESTATE LTD.,.
Listed by LPT REALTY.
Listed by ROYAL LEPAGE NRC REALTY.
Listed by RE/MAX NIAGARA REALTY LTD, BROKERAGE.