4550 Ste-Catherine St is a 12-bedroom, 5-bathroom detached home in The Nation, listed for $649,900. It has 5000 + sq ft of living space.
1Situated in the charming village of St.
2The expansive third floor presents a remarkable opportunity for customization-ideal for additional income suites, a stunning owner's retreat, or a transformative renovation project.
3A truly exceptional offering where heritage charm meets future potential.
Discover a rare opportunity to own a distinguished piece of history with this stately 1912 Victorian residence, gracefully blending timeless character with exceptional versatility. Situated in the charming village of St. Isidore, this impressive three-storey home offers a unique combination of immediate income potential and long-term redevelopment possibilities. Showcasing original architectural details and enduring craftsmanship, the property is currently configured with 12 private rental rooms across the main and second levels, complemented by shared amenities including a spacious kitchen and dining area, as well as three well-appointed bathrooms. The expansive third floor presents a remarkable opportunity for customization-ideal for additional income suites, a stunning owner's retreat, or a transformative renovation project. Zoned Village Core, this property supports a wide range of permitted uses, making it equally attractive as a high-yield investment, multi-generational home, boutique business, or one-of-a-kind family residence. A truly exceptional offering where heritage charm meets future potential.
12 bedrooms, 5 bathrooms, about 5,000 sq ft, works out to roughly $130 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
Inside 4550 Ste-Catherine St
Every detail from the listing, in one place.
Type
Detached
Style
3-Storey
Living space
5000 + sq ftas stated on the listing
Parking
6 spaces
Basement
Unfinished
Features & systems
Parking & garage
Parking spaces
6
Interior
Basement
Unfinished
Lot & land
Lot size (sqft)
0.34
Listing & possession
Property style
3-Storey
Property class
Detached
4550 Ste-Catherine St Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
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
$3,193
/mo
based on the purchase price of $649,900
$129,980 cash
$519,920 financed
$437,909 total interest
Principal54%$519,920
Interest46%$437,909
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.
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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 4550 Ste-Catherine St
Homes for sale in The Nation
Every active The Nation MLS® listing, updated all day.
Average days on market47Homes sold in about 47 days on average.
Sale-to-list ratio96.7%On average, homes sold below asking.
Active listings109Homes for sale here right now.
Median vs prior 90 days−4.4%Compared with May 7 – Aug 5, 2026: prices down.
Based on 63 sales from Aug 5 – Nov 3, 2026 (62 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
Questions About 4550 Ste-Catherine St
How much is 4550 Ste-Catherine St listed for?
4550 Ste-Catherine St is listed at $649,900 (MLS® X13794592). Summitly updates the price as soon as the MLS® record changes.
Is $649,900 a good price for 4550 Ste-Catherine St?
Summitly rates it Excellent Deal: the asking price is 10% or more below Zara's estimate, an estimate built from recent sales in The Nation. 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 4550 Ste-Catherine St changed?
Yes — it was first listed at $649,000 and is now $649,900, an increase of $900 (0.1%).
How many bedrooms and bathrooms does 4550 Ste-Catherine St have?
4550 Ste-Catherine St has 12 bedrooms and 5 bathrooms, with about 5,000 square feet of living space. It is a detached home in The Nation.
How much would the monthly mortgage be on 4550 Ste-Catherine St?
About $3,193 a month — principal and interest on $649,900 with 20% down ($129,980), 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 4550 Ste-Catherine St compare with other homes in The Nation?
Its asking price of $649,900 is about 29% above the median sold price in The Nation over the last 90 days, $505,000, across 63 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 4550 Ste-Catherine St been sold before?
Summitly has no earlier MLS® sale or lease of 4550 Ste-Catherine St on record from the last two years. Older records aren't shown under TRREB rules.
Where is 4550 Ste-Catherine St?
4550 Ste-Catherine St is in The Nation, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 4550 Ste-Catherine St been on the market?
49 days — 4550 Ste-Catherine St was listed on September 15, 2026.
What is the price per square foot of 4550 Ste-Catherine St?
About $130 per square foot: the asking price of $649,900 over the 5,000 sq ft the listing gives.
Does 4550 Ste-Catherine St have parking or a garage?
Yes — the listing gives 6 parking spaces.
Does 4550 Ste-Catherine St have a basement, and is it finished?
The listing describes the basement as: Unfinished.
