27 William St is an investment in St. Catharines, listed for $650,000.
1Positioned on the prominent corner of William Street and King Street in the heart of downtown St.
2Catharines, this extensively renovated multi-unit commercial property presents an outstanding investment opportunity for those looking to acquire or expand a rental portfolio.
3Two units have been substantially completed with renovated kitchenettes and washrooms, while two additional units have all plumbing rough-ins completed and are ready for finishing to suit your leasing strategy.
How can Zara help?Zara · AI virtual agent · 24/7 · free
Zara is an AI virtual agent. Advisors are licensed REALTORS® at Coldwell Banker Summit Realty, Brokerage.
Commercial Property in St. Catharines
About 27 William Street
Positioned on the prominent corner of William Street and King Street in the heart of downtown St. Catharines, this extensively renovated multi-unit commercial property presents an outstanding investment opportunity for those looking to acquire or expand a rental portfolio. Significant capital improvements have been completed throughout the building, including new electrical service with a 200-amp panel, all-new plumbing, a new furnace with ductwork, new hot water tank, new windows, doors, flooring, drywall, and insulation throughout the walls and ceilings. Two units have been substantially completed with renovated kitchenettes and washrooms, while two additional units have all plumbing rough-ins completed and are ready for finishing to suit your leasing strategy. Situated in a highly visible downtown location within walking distance of restaurants, retail, public transit, and numerous amenities, this property offers exceptional long-term income and value-add potential.
St. Catharines investment priced at $650,000 — book a tour to see if it fits your search.
Inside 27 William St
Every detail from the listing, in one place.
Type
Investment
Features & systems
Lot & land
Lot size (sqft)
0
Listing & possession
Property class
Investment
27 William 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® X13500724$650,000
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 27 William St Compares to the St. Catharines Market
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.
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 St. Catharines
Other homes for sale in St. Catharines around $650K.
Average days on market39Homes sold in about 39 days on average.
Sale-to-list ratio96.4%On average, homes sold below asking.
Active listings747Homes for sale here right now.
Median vs prior 90 days+1.8%Compared with May 9 – Aug 7, 2026: prices up.
Based on 534 sales from Aug 7 – Nov 5, 2026 (507 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
27 William St is listed at $650,000 (MLS® X13500724). Summitly updates the price as soon as the MLS® record changes.
Has the price of 27 William St changed?
No — 27 William St is still listed at its original asking price of $650,000.
How many bedrooms and bathrooms does 27 William St have?
The listing for 27 William St doesn't publish its bedroom and bathroom count. It is a commercial property in St. Catharines.
Is 27 William St close to transit?
The nearest rapid-transit station is St. Catharines GO Station (Lakeshore West GO), about 1.2 km (about a 15-minute walk) in a straight line. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
How does 27 William St compare with other homes in St. Catharines?
Its asking price of $650,000 is about 16% above the median sold price in St. Catharines over the last 90 days, $559,950, across 534 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 27 William St been sold before?
Summitly has no earlier MLS® sale or lease of 27 William St on record from the last two years. Older records aren't shown under TRREB rules.
Where is 27 William St?
27 William St is in St. Catharines, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 27 William St been on the market?
132 days — 27 William St was listed on June 26, 2026.
What is the land transfer tax on 27 William St?
About $9,475 in Ontario land transfer tax at the asking price of $650,000. First-time buyers can get up to $4,000 back. Legal fees and other closing costs are extra.
How do I book a viewing of 27 William St or make an offer?
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.
What is the property tax for 27 William St?
The listing for 27 William St doesn't publish the annual property tax. The property tax calculator linked at the foot of this page gives an estimate for St. Catharines.
When was 27 William St built?
The listing for 27 William St doesn't publish a year built. A Summitly agent can ask the listing brokerage for it.
