St. Marys, ON · · MLS® X13694780Updated
$639,900
450 Queen St E is a commercial in St. Marys, listed for $639,900.
Coldwell Banker Summit Realty, BrokerageZara is an AI virtual agent. Advisors are licensed REALTORS® at Coldwell Banker Summit Realty, Brokerage.
Own a piece of history in the Stonetown with this distinctive mixed-use stone property, originally built in 1880 and prominently positioned along Queen Street East in St. Marys. The property provides an established income stream from both commercial and residential tenants, with the main-floor commercial space currently leased at $3,000/month gross, inclusive of HST and utilities, and the one-bedroom residential unit above rented for $750/month inclusive of utilities. The residential tenancy is month-to-month, creating potential for future rental upside. The property also benefits from excellent visibility, convenient on-site parking and a recently paved parking area. With its historic stone construction, prominent location and combination of existing income with future potential, this is a unique opportunity to add a recognizable St. Marys property to your investment portfolio.
St. Marys commercial priced at $639,900 — book a tour to see if it fits your search.
Every detail from the listing, in one place.
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
Estimated from city-wide sales. There isn’t enough detail on this listing to rate the price.
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. Marys market reportTransit, schools, parks and everyday places near this home. Select any place to open it on Google Maps.
Loading schools, parks, groceries and more nearby…
From 450 Queen St E. Typical times without traffic delays; transit times aren't available yet.
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 450 Queen St E 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 450 Queen St E 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: Coldwell Banker Homefield Legacy Realty, BrokerageMLS® X13694780 · 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.
Other homes for sale in St. Marys around $640K.
Homes for sale in St. Marys
Every active St. Marys MLS® listing, updated all day.
Based on 30 sales from Aug 9 – Nov 7, 2026 (44 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
450 Queen St E is listed at $639,900 (MLS® X13694780). Summitly updates the price as soon as the MLS® record changes.
No — 450 Queen St E is still listed at its original asking price of $639,900.
The listing for 450 Queen St E doesn't publish its bedroom and bathroom count. It is a commercial property in St. Marys.
Its asking price of $639,900 is about 12% above the median sold price in St. Marys over the last 90 days, $571,500, across 30 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 450 Queen St E on record from the last two years. Older records aren't shown under TRREB rules.
450 Queen St E is in St. Marys, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
79 days — 450 Queen St E was listed on August 20, 2026.
About $9,273 in Ontario land transfer tax at the asking price of $639,900. First-time buyers can get up to $4,000 back. Legal fees and other closing costs are extra.
Select "Book a viewing" on this page and pick a time. A licensed Coldwell Banker Summit Realty, Brokerage agent confirms it with the listing brokerage. When you're ready, your agent prepares the offer with you and submits it to the listing brokerage.
The listing for 450 Queen St E doesn't publish the annual property tax. The property tax calculator linked at the foot of this page gives an estimate for St. Marys.
The listing for 450 Queen St E doesn't publish a year built. A Summitly agent can ask the listing brokerage for it.
