DetachedOn market 96 days

178 Thomas St, St. Marys

Name: 178 Thomas Street
SKU: X13661486
Price: 599999 CAD
Availability: InStock

St. Marys, ON · · MLS® X13661486Updated August 18, 2026

$599,999Est. $2,948/mo mortgage

Bedrooms: 3
Bathrooms: 2
Living space: 1100–1500sq ft
Parking spaces: 2

Type Detached
Basement Unfinished

What you should know

178 Thomas St is a 3-bedroom, 2-bathroom detached home in St. Marys, listed for $599,999. It has 1100-1500 sq ft of living space.

Marys Completely renovated, move-in ready, and just a short walk from downtown St.
Marys.Thoughtfully renovated down to the studs, 178 Thomas Street combines the charm and proportions of an established home with the comfort, efficiency and finishes of a fresh renovation.
Step inside to a bright, airy and open main living space, where the spacious living and dining areas flow naturally into a beautiful new kitchen.

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3 Bed, 2 Bath Detached Home in St. Marys

About 178 Thomas Street

178 Thomas Street, St. Marys Completely renovated, move-in ready, and just a short walk from downtown St. Marys.Thoughtfully renovated down to the studs, 178 Thomas Street combines the charm and proportions of an established home with the comfort, efficiency and finishes of a fresh renovation. Step inside to a bright, airy and open main living space, where the spacious living and dining areas flow naturally into a beautiful new kitchen. Large new windows bring in plenty of natural light, while the generous kitchen offers excellent workspace, storage and a large island that creates a natural gathering place for everyday living and entertaining.The main-floor bedroom offers a particularly functional layout, featuring a walk-through closet leading directly to the main bathroom and laundry area-an excellent setup for anyone looking for the convenience of main-floor living.Upstairs you'll find two additional well-proportioned bedrooms, both with generous closet space, along with a new three-piece bathroom with shower. With three bedrooms and two bathrooms in total, the layout makes excellent use of the home's space without feeling cramped.The extensive renovation goes well beyond what you can see. The home features a new furnace, central air conditioning and air exchanger, plumbing, electrical along with new windows and updated finishes throughout. The result is a clean, comfortable home where the work has already been done.Outside, the manageable property offers room to enjoy without creating a long list of weekend chores, while the walkable St. Marys location puts downtown shops, restaurants and amenities within easy reach.Freshly renovated, nicely proportioned and truly move-in ready, 178 Thomas Street is an opportunity to simply unpack and enjoy. Flexible closing available.3 Bedrooms | 2 Bathrooms | Main-Floor Bedroom & Laundry | Extensive Renovation | New Furnace & A/C | Air Exchanger | New Windows | Walkable to Downtown

3 bedrooms, 2 bathrooms, about 1,100 sq ft, works out to roughly $545 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.

Inside 178 Thomas St

Every detail from the listing, in one place.

Type: Detached
Style: 2-Storey
Living space: 1100-1500 sq ftas stated on the listing
Parking: 2 spaces
Basement: Unfinished

Features & systems

Parking & garage

Parking spaces: 2

Interior

Basement: Unfinished

Lot & land

Lot size (sqft): 0

Listing & possession

Property style: 2-Storey
Property class: Detached

178 Thomas St Price & Sale History

Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.

Aug 11, 2026For saleListedThis listingMLS® X13661486$599,999

Sourced from MLS®. Includes earlier listings of this property on record.

What's it worth?

How 178 Thomas St Compares to the St. Marys Market

Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.

Zara’s estimate

Above Market· based on 74 recent sales

Value your own home →How accurate are Zara’s estimates?

Summitly estimate, not from TRREB, the MLS® or the listing brokerage. Not an appraisal. How it works

St. Marys market, last 90 days

Median sold price: $555,000
Average sold price: $571,561
Average days on market: 67
Homes sold: 31

Closed sales on the TRREB MLS®.

Full St. Marys market report

Recently sold nearby in St. Marys

Sold prices are shown free to signed-in members, as board rules require.

6 nearby sales vs. this home

Closed sales from MLS®, compared with this home's asking price.

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Home	Sold price	$ / sqft	% of asking	Sold
This home178 Thomas Street 3 bd · 2 ba · 1,100 sqft	$599,999asking	$545	—	—
34 Warner Street 2 bd · 2 ba · 1,100 sqft
119 Meadowridge Drive 3 bd · 2 ba · 1,100 sqft
6 Hillside Court 3 bd · 2 ba · 1,100 sqft
29 Dunsford Crescent 3 bd · 2 ba · 1,100 sqft
296 Glass Street 4 bd · 3 ba · 1,100 sqft
138 Millson Crescent 3 bd · 3 ba · 1,100 sqft

34 Warner Street
2 bd · 2 ba · 1,100 sqft
119 Meadowridge Drive
3 bd · 2 ba · 1,100 sqft
6 Hillside Court
3 bd · 2 ba · 1,100 sqft
29 Dunsford Crescent
3 bd · 2 ba · 1,100 sqft
296 Glass Street
4 bd · 3 ba · 1,100 sqft
138 Millson Crescent
3 bd · 3 ba · 1,100 sqft

Living in St. Marys: Location & Amenities

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Costs, Mortgage & Rental Return for 178 Thomas St

What it could cost each month, today's rates from our mortgage partner, and what it could return as a rental.

Mortgage: $2,948; 20% down · 25 years · 5.5% assumed
Property tax: $330; 0.66% mill rate · ON
Total per month: $3,278; Before utilities, insurance and fees

Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.

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Monthly cost

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Down payment

Rate (%)

Years

An estimate, not a quote. Utilities and insurance are extra.

Affordability calculator

Estimated monthly payment

$2,948

/mo

based on the purchase price of $599,999

Down payment20%

$120,000 cash

Amortization25 yr

$479,999 financed

Rate5.50%

$404,285 total interest

Principal54%$479,999

Interest46%$404,285

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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Listing brokerage: Coldwell Banker Homefield Legacy Realty, BrokerageMLS® X13661486 · Listing data last updated August 18, 2026

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.

For sale· listed Aug 10· $545/sq ft

Estimated monthly mortgage$2,948/moMortgage only · 20% down · 5.5% assumed

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5.0 · Google rating for Coldwell Banker Summit Realty, Brokerage · as of September 2026

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