145 Main St is a 2-bathroom detached home in Markham, listed for $3,940,000. It has 3500-5000 sq ft of living space.
1Backing Directly Onto Bruce Creek And Mature Ravine Greenery, This Unique Residence Offers A Rare Blend Of Historic Charm, Privacy, And Estate-Like Living On An Expansive Lot Rarely Found In The Area.
2The Building Has A Dedicated Fiber Optic Connection, Ideal For Modern Living And Remote Work Needs.
3BasementFinished, Full, as described in the listing.
Rare Opportunity To Own A Landmark Property On Prestigious Main Street Unionville Within The Historic Heritage District. Backing Directly Onto Bruce Creek And Mature Ravine Greenery, This Unique Residence Offers A Rare Blend Of Historic Charm, Privacy, And Estate-Like Living On An Expansive Lot Rarely Found In The Area. The Building Has A Dedicated Fiber Optic Connection, Ideal For Modern Living And Remote Work Needs. Protected By Heritage Conservation And Main Street Character Controls, This Property Represents Exceptional Long-Term Prestige Within One Of Markham's Most Desirable And Iconic Communities. An Irreplaceable Opportunity For Discerning Buyers Seeking Timeless Character, Tranquil Natural Surroundings, And Premier Main Street Unionville Living.
works out to roughly $1,126 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.Ask Zara a follow-up
Inside 145 Main St
Every detail from the listing, in one place.
Type
Detached
Style
2-Storey
Living space
3500-5000 sq ftas stated on the listing
Parking
8 spaces
Basement
Finished, Full
Features & systems
Parking & garage
Parking spaces
8
Interior
Basement
Finished · Full
Lot & land
Lot size (sqft)
25439
Listing & possession
Property style
2-Storey
Property class
Detached
145 Main 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
$19,356
/mo
based on the purchase price of $3,940,000
$788,000 cash
$3,152,000 financed
$2,654,811 total interest
Principal54%$3,152,000
Interest46%$2,654,811
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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Similar homes for sale nearby in Markham
Other 4–6 bed homes for sale in Markham around $3.9M.
Average days on market31Homes sold in about 31 days on average.
Sale-to-list ratio99.3%On average, homes sold below asking.
Active listings1,491Homes for sale here right now.
Median vs prior 90 days+1.4%Compared with Apr 15 – Jul 14, 2026: prices up.
Based on 1,377 sales from Jul 14 – Oct 12, 2026 (767 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
145 Main St is listed at $3,940,000 (MLS® N13153462). Summitly updates the price as soon as the MLS® record changes.
Is $3,940,000 a good price for 145 Main St?
Summitly rates it Well Above Market: the asking price is 15% or more above Zara's estimate, an estimate built from recent sales in Markham. 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 145 Main St changed?
Yes — it was first listed at $3,950,000 and is now $3,940,000, a drop of $10,000 (0.3%).
How many bedrooms and bathrooms does 145 Main St have?
145 Main St has 2 bathrooms, with about 3,500–5,000 square feet of living space. It is a detached home in Markham.
Is 145 Main St close to transit?
The nearest rapid-transit station is Unionville GO Station (Stouffville GO), about 1.7 km (about a 21-minute walk) in a straight line. Centennial GO Station is about 1.9 km (about a 24-minute walk), and Markham GO Station is about 4.3 km. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
How much would the monthly mortgage be on 145 Main St?
About $19,356 a month — principal and interest on $3,940,000 with 20% down ($788,000), 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 145 Main St compare with other homes in Markham?
Its asking price of $3,940,000 is about 261% above the median sold price in Markham over the last 90 days, $1,090,000, across 1,377 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 145 Main St been sold before?
Summitly has no earlier MLS® sale or lease of 145 Main St on record from the last two years. Older records aren't shown under TRREB rules.
Where is 145 Main St?
145 Main St is in Markham, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 145 Main St been on the market?
144 days — 145 Main St was listed on May 21, 2026.
What is the price per square foot of 145 Main St?
About $788 to $1,126 per square foot: the asking price of $3,940,000 over the 3,500–5,000 sq ft the listing gives as its size range.
