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For saleMLS® N12659592

165 Krieghoff Avenue, Markham, ON L3R 1W2

Unionville · L3R 1W2

$3,949,900

$1,129 / sq ft

10 months on market

Bedrooms
4+2
Bathrooms
7
Interior
3,500 sf
Parking
6
Lot
61 × 0 ft

What's special

  • Attached garage
  • Central air
  • Walk-out basement
  • Fireplace
  • Sump pump
  • In-law suite
  • Built-in oven
  • Carpet free

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About this property

Welcome to a stunning custom-built home in prestigious Unionville. This masterpiece features soaring ceilings, hardwood & marble floors, full panelled walls, and intricate mouldings. The chefs kitchen boasts Thermador appliances, marble countertops, and custom cabinetry. Enjoy a wine cellar, wet bar, and Red Oak library. Prime location near top schools, Main Street Unionville, Toogood Pond, and major highways. A rare opportunity to own a one-of-a-kind luxury residence.

Rooms

12 rooms. Dimensions as published by the listing brokerage.

Room dimensions and features
RoomLevelDimensionsFeatures
Living RoomMain5.80 × 4.90 m19.0 × 16.1 ftHardwood Floor · Gas Fireplace · Dropped Ceiling
Dining RoomMain4.90 × 2.45 m16.1 × 8.0 ftHardwood Floor · Dropped Ceiling · Overlooks Living
KitchenMain9.15 × 5.20 m30.0 × 17.1 ftB/I Appliances · Granite Counters · Breakfast Area
Family RoomMain6.10 × 5.20 m20.0 × 17.1 ftMarble Fireplace · Hardwood Floor · Dropped Ceiling
LibraryMain3.05 × 2.75 m10.0 × 9.0 ftHardwood Floor · B/I Bookcase · Dropped Ceiling
Primary BedroomSecond8.53 × 4.57 m28.0 × 15.0 ft5 Pc Ensuite · Skylight · Walk-In Closet(s)
Bedroom 2Second5.20 × 4.57 m17.1 × 15.0 ftHardwood Floor · 3 Pc Ensuite · Skylight
Bedroom 3Second5.20 × 4.30 m17.1 × 14.1 ft3 Pc Ensuite · Large Closet · Hardwood Floor
Bedroom 4Second4.88 × 3.96 m16.0 × 13.0 ft3 Pc Ensuite · Hardwood Floor · Large Closet
Bedroom 5Lower5.20 × 4.57 m17.1 × 15.0 ft3 Pc Ensuite · Marble Fireplace
Exercise RoomLower3.66 × 3.05 m12.0 × 10.0 ft3 Pc Ensuite · Marble Floor
RecreationLower15.25 × 4.27 m50.0 × 14.0 ftWet Bar · Marble Floor

Features

  • Sump Pump
  • In-Law Suite
  • Built-In Oven
  • Carpet Free

Property details

Property

Property type
detached
Bedrooms
4 + 2
Bathrooms
7
Interior size
3,500 sq ft
Possession
90/tbd

Interior

Basement
Finished with Walk-Out
Heating
Forced Air · Gas
Cooling
Central Air
Fireplaces
1
Exposure
South

Exterior & services

Construction
Brick
Garage
Attached
Parking spaces
6
Sewer
Sewer

Costs

List price
$3,949,900
Property taxes
$8,390 / year (2025)
Price per sq ft
$1,129

Listing

MLS® number
N12659592
Status
For sale
Listed
January 4, 2026
Days on market
304
Last updated
September 9, 2026
Listing brokerage
BAY STREET GROUP INC.

Price & sale history

This property's sale history is hidden

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Before you make an offer

What this home costs beyond the asking price, and how that price compares to what else is on the market.

How this price compares

This home is priced above most comparable listings — about 97% of comparable detached listings in Unionville are asking less.

$1.49MMedian $2.00M$3.28M
This home
$1,129 / sq ft
Comparable median
$752 / sq ft

Based on 60 comparable active detached listings in Unionville. These are asking prices, not sale prices.

Mortgage estimate

Down payment20.0% · minimum $789,980
$789,980
Interest rate5-year fixed, illustrative only
4.49%
Amortization
Principal & interest
$17,471.74
Property tax (est.)
$699.17
Estimated monthly
$18,171

Estimate only. Excludes CMHC insurance premiums, which apply below 20% down, and does not constitute a mortgage approval or an offer of credit.

Land transfer tax

Payable on closing, on top of the purchase price.

Ontario
$85,223
Total due on closing
$85,223

An estimate on the asking price of $3,949,900. Rates current as of September 2026; confirm the final figure with your real estate lawyer.

Listing courtesy of BAY STREET GROUP INC.. Listing data is provided in part by the Toronto Regional Real Estate Board (TRREB) and is deemed reliable but is not guaranteed accurate. Information is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. Data is updated every 15 minutes.

$3,949,900

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