166 Krieghoff Ave

Unionville, Markham, Ontario L3R 1W3

For Sale · MLS® N13217692 · TRREB MLS®
5+2
Beds
9
Baths
3500-5000
Sqft
2
Parking
Detached
Type

Description

A Masterpiece of Luxury Living in Prestigious Unionville! Brand-new custom residence offering over 6500 sq. ft. of exceptional living space, including approx. 4,460 sq. ft. on the main & second levels plus a beautifully finished 2,065 sq. ft. basement. Featuring 5+2 bedrooms, each with its own ensuite and heated floors, this extraordinary home showcases refined craftsmanship, timeless design, and modern luxury throughout. A grand stone façade and impressive 9' solid mahogany double entrance door open into a magnificent light-filled foyer. Expansive windows and strategically placed skylights highlight designer chandeliers, custom-fabricated slab vanity sinks, elegant white ash hardwood floors, cozy gas fireplaces, and a dramatic red oak mono-stringer open-riser staircase with LED lighting. The gourmet kitchen is equipped with top-of-the-line appliances and complemented by a second wok kitchen, ideal for both everyday family living and elegant entertaining. The luxurious primary suite offers a spacious walk-in closet and a spa-inspired 7-piece ensuite with heated floors and an automatic toilet. A second-floor laundry room adds convenience, while the upper-level sitting area creates a peaceful retreat for reading, meditation, or quiet relaxation. The fully heated walk-up basement is an entertainer's dream, complete with a spacious games room, large theatre room, wet bar/kitchen, and two additional bedrooms. Located in one of Unionville's most prestigious and established communities, close to top schools, parks, Main Street Unionville, boutique shops, restaurants, cultural events, Unionville GO Station, and everyday amenities. A rare opportunity to own a truly exceptional custom home in the heart of Unionville.

01 / Property recordListing details

Key Facts

MLS® #
N13217692
Board
TRREB MLS®
Days on market
Tax
$17,997
Size
3500-5000 sqft
Lot
60 × 125 Feet
Parking
2 Attached, 6 Parking

Listing History

Buy/Sell history for 166 Krieghoff Ave, Markham, Ontario

Sale history on this site covers the last 2 years, the window permitted under the TRREB MLS® VOW agreement.

Date StartDate EndList PricePriceEventListing ID
N/AN/A$5,280,000N/AExtN13217692

Estimated Market Value

Estimated value requires sign in

AI market estimates use sold comparables and are available after you sign in and accept MLS® VOW terms.

Property Details

Property

Property Type
Detached
Style
2-Storey
Community
Unionville
Municipality
Markham

Inside

Bedrooms
5+2
Bathrooms
9
Bathroom Detail
1, 2pc, Main
Bathroom Detail
1, 5pc, 2nd
Bathroom Detail
4, 3pc, 2nd
Bathroom Detail
3, 3pc, Bsmt
Basement Type
Finished
Kitchens
2

Utilities

Water
Municipal
Cooling
Central Air
Heating Type
Forced Air

Building

Size
3500-5000 sqft
Construction
Brick

Parking

Driveway
Private
Garage Type
Attached
Garage
2
Add. Parking
4
Total Parking
6

Land

Sewer
Sewers
Lot Size
60 × 125 Feet
Lot Size Code
Feet

Additional

Year built
New
Foundation
Concrete
Roof
Asphalt Shingle
Fireplace
Y
Pool
None
Den
Y
Family room
Y

Rooms (14)

Living (5.07 × 6.47)

Level: Main

Dining (5.07 × 6.47)

Level: Main

Kitchen (4.47 × 4.69)

Level: Main

Family (4.69 × 6.12)

Level: Main

Office (3.2 × 4.57)

Level: Main

Primary (5.3 × 5.74)

Level: 2nd

2nd Br (4.16 × 5.15)

Level: 2nd

3rd Br (3.73 × 4.9)

Level: 2nd

4th Br (3.73 × 4.31)

Level: 2nd

5th Br (3.22 × 4.21)

Level: 2nd

Rec (4.62 × 9.8)

Level: Bsmt

Media/Ent (2.64 × 3.5)

Level: Bsmt

Br (3.04 × 4.97)

Level: Bsmt

Br (3.2 × 4.31)

Level: Bsmt

Location

Land and environment

Public records about this location. Not part of the MLS® listing and not provided by the listing brokerage.

16 records read 9 on record nearby 7 checked, none on recordRead 2026-10-28

Water and conservation

  • Not in Toronto and Region Conservation Authority’s mapped regulated area
  • No mapped wetland within 120 m
  • 1 water-supply well recorded within 250 mIt was drilled for domestic use; 1 test or monitoring hole also recorded. From Ontario’s well records; locations can be approximate. The records do not show how this home gets its water. Wells nearby typically go down about 17.4 m.
  • Groundwater recorded about 4 m below ground nearbyThe middle water level in the well records within 500 m (34 records). It changes with the season and from spot to spot.
  • Bedrock about 29.9 m down nearbyThe middle depth to bedrock in the well records within 500 m.

Toronto and Region Conservation Authority · Province of Ontario open data

Planning and building activity

  • Outside the Greenbelt, Oak Ridges Moraine and Niagara Escarpment plan areas
  • Nearest airport: 3.7 km

Province of Ontario open data

Around the home

  • Nearest rail line: 660 m
  • A trail on the Ontario trail network within 1 km

Province of Ontario open data

Environmental records

  • No licensed pit or quarry within 2 km
  • No recorded oil, gas or salt well within 250 m
  • No facility within 1 km reports pollutant releases to Environment CanadaThe nearest is Markham District Energy Inc. — Warden Energy Centre, 2.5 km away. Only facilities above the inventory’s reporting thresholds are listed.
  • No federal contaminated site within 1 kmThe federal inventory covers federal land only; it says nothing about provincial or private sites.

Province of Ontario open data · Government of Canada open data

Power and internet

  • Electricity is distributed here by Alectra Utilities Corporation
  • Wired internet 50/10 Mbps or faster is listed at this locationFixed wireless below 5/1 Mbps. LTE mobile coverage listed. ISED’s National Broadband Data at the nearest household point (20 m from the listing); 50/10 Mbps is its top category and includes faster plans. Confirm with a provider for this address.
  • Across the surrounding area: fibre to the home, cable, DSL internet listedFibre to the home: Beanfield Metroconnect, Bell, CIK Telecom, FibreStream, Rogers. Cable: Rogers. DSL: Bell. Fixed wireless: Bell, Dash Networks, Rogers, Routcom. Mobile: Bell, Freedom Mobile, Rogers, Telus. Satellite: Xplore. ISED’s list for the surrounding ~25 km² area; check with a provider for this address.

Ontario Energy Board · Innovation, Science and Economic Development Canada

None of this is an inspection of the property. Confirm anything that matters to you with the municipality, the conservation authority or the record’s publisher. Contains information licensed under the Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Ontario. Contains information made available under the Toronto and Region Conservation Authority Open Data Licence v1.0.

Comparable Sales

Comparable sales require sign in

Closing prices and sold comps are available to registered visitors who accept MLS® VOW terms on this site.

02 / Plan your numbersTools

Mortgage Tools

Mortgage calculator

20%

Monthly Payment

$24,204

  • Down payment$1,056,000
  • Mortgage amount$4,224,000
  • Total interest$3,037,200
  • Total cost$8,317,200

Cash flow analysis

$24,204

Total monthly payment

$25,704

Break-even down payment

100%

Cash flow-$25,704
03 / Community profileNeighbourhood demographics

Expand Neighbourhood demographics to load Statistics Canada census charts.

04 / Local performanceMarket details

Expand Market details to load neighbourhood price and activity trends.

$5,280,000

$5,280,000

CAD

Estimated market value

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