166 Krieghoff Ave
Unionville, Markham, Ontario L3R 1W3
- Bedrooms
- 5+2
- Bathrooms
- 9
- Size
- 3,500–5,000sq ft
- Per sq ft
- $1,242at the range’s middle
- Lot
- 60 x 125 ft
- Tax a year
- $17,9972025 tax year
- Built
- New
- Parking
- 62 attached
- Days on market
- Members
The brief
About 166 Krieghoff Ave
166 Krieghoff Ave is a 5+2-bedroom, 9-bathroom detached house in Unionville, Markham, listed for sale at an asking price of $5,280,000 (MLS® N13217692).
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.
Insights
Condition Score
Good68/1006 condition-related facts documented
Source: Listing age, structured features and disclosed update language; not an inspection.
Condition uses listing-record signals, not an inspection.
The home
Key facts
- Tax
- $17,997 / 2025
- MLS® number
- N13217692
- Board
- TRREB MLS®
- Property Type
- Detached
- Building Age
- New
- Days on market
- Size
- 3500-5000 sqft
- Lot Size
- 60 x 125 ft
- Listed on
- Parking
- 2 Attached, 6 Parking
Property details
Property
- Property Type
- Detached
- Style
- 2-Storey
- Community
- Unionville
- Municipality
- Markham
Building
- Size
- 3500-5000 sqft
- Building Age
- New
- Construction
- Brick
Inside
- Bedrooms
- 5+2
- Bathrooms
- 9
- Bathroom Details
- 1 × 2pc Main, 1 × 5pc 2nd, 4 × 3pc 2nd, 3 × 3pc Bsmt
- Basement Type
- Finished
- Kitchens
- 2
Parking
- Driveway
- Private
- Garage Type
- Attached
- Garage
- 2
- Additional Parking
- 4
- Total Parking
- 6
Utilities
- Water
- Municipal
- Cooling
- Central Air
- Heating Type
- Forced Air
Land
- Sewer
- Sewers
- Frontage
- 60 ft
- Depth
- 125 ft
- Lot Size
- 60 x 125 ft
Additional
- Foundation
- Concrete
- Roof
- Asphalt Shingle
- Fireplace
- Yes
- Pool
- None
- Den
- Yes
- Family room
- Yes
Rooms
| Room | Size | Features | Level |
|---|---|---|---|
| Living | 5.07 × 6.47 m | — | Main |
| Dining | 5.07 × 6.47 m | — | Main |
| Kitchen | 4.47 × 4.69 m | — | Main |
| Family | 4.69 × 6.12 m | — | Main |
| Office | 3.2 × 4.57 m | — | Main |
| Primary | 5.3 × 5.74 m | — | 2nd |
| 2nd Br | 4.16 × 5.15 m | — | 2nd |
| 3rd Br | 3.73 × 4.9 m | — | 2nd |
| 4th Br | 3.73 × 4.31 m | — | 2nd |
| 5th Br | 3.22 × 4.21 m | — | 2nd |
| Rec | 4.62 × 9.8 m | — | Bsmt |
| Media/Ent | 2.64 × 3.5 m | — | Bsmt |
| Br | 3.04 × 4.97 m | — | Bsmt |
| Br | 3.2 × 4.31 m | — | Bsmt |
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 Start | Date End | List Price | Price | Event | Listing ID |
|---|---|---|---|---|---|
| Date StartN/A | N/A | $5,280,000 | N/A | Ext | N13217692 |
Members see the full history. Prices are hidden from signed-out visitors.
The numbers
Mortgage Calculator
Plan with the current asking price
CMHC insurance: not required at 20% down. Payments use Canadian semi-annual compounding.
Mortgage Details
4.8% · 5-year term · 25-year amortization · 20% down
- Total down payment
- $1,056,000
- Total mortgage amount
- $4,224,000
- Total interest payment
- $3,002,700
- Total purchase cost
- $8,282,700
- Mortgage payment
- $24,089/mo
Cash Flow Analysis
If you rented this home out at 20% down
Break-even down payment
—Monthly carrying cost
$25,589- Rent $0
- Shortfall $25,589
Rental income starts at $0: enter the rent you expect. This is a planning tool, not advice.
Land transfer tax on this home
- Ontario land transfer tax
- $118,475
- Total land transfer tax
- $118,475
- First-time buyer rebates (Ontario up to $4,000)
- −$4,000
- Total for first-time buyers
- $114,475
See how this is worked out
- 0.5% on the first $55,000
- $275
- 1.0% from $55,000 to $250,000
- $1,950
- 1.5% from $250,000 to $400,000
- $2,250
- 2.0% from $400,000 to $2,000,000
- $32,000
- 2.5% from $2,000,000 to $5,280,000
- $82,000
- Ontario total
- $118,475
An estimate at the asking price, for a home with one or two single-family residences. Your lawyer confirms the exact amount.
Estimate
Estimated value requires sign in
Market estimates use sold comparables and are available after you sign in and accept MLS® VOW terms.
The estimate is an automated value built from public and MLS® data. It is not an appraisal; ask Kassaundra Dobson, Broker of Record for a full comparative market analysis.
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.
The land
Lot
- Lot area
- 7,500 sq ft697 m²
- Street frontage
- 60 ft18.3 m
- Depth
- 125 ft38.1 m
The area is the frontage multiplied by the depth, so boundaries are approximate. Confirm with a survey before you buy.
Source: the MLS® listing record.
Land and environment
Public records about this location. Not part of the MLS® listing and not provided by the listing brokerage.
Water and conservation5
- Not in Toronto and Region Conservation Authority’s mapped regulated areaAt the address
- No mapped wetland within 120 m120 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.250 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.500 m
- Bedrock about 29.9 m down nearbyThe middle depth to bedrock in the well records within 500 m.500 m
Toronto and Region Conservation Authority · Province of Ontario open data
Planning and building activity2
- Outside the Greenbelt, Oak Ridges Moraine and Niagara Escarpment plan areasAt the address
- Nearest airport: 3.7 km3.7 km
Province of Ontario open data
Around the home2
- Nearest rail line: 660 m660 m
- A trail on the Ontario trail network within 1 km1 km
Province of Ontario open data
Environmental records4
- No licensed pit or quarry within 2 km2 km
- No recorded oil, gas or salt well within 250 m250 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.1 km
- No federal contaminated site within 1 kmThe federal inventory covers federal land only; it says nothing about provincial or private sites.1 km
Province of Ontario open data · Government of Canada open data
Power and internet3
- Electricity is distributed here by Alectra Utilities CorporationAt the address
- 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.At the 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.Area-wide
Ontario Energy Board · Innovation, Science and Economic Development Canada
Each record is placed at the distance its own line states. None of it is an inspection of the property. Confirm anything that matters to you with the municipality, Toronto and Region Conservation Authorityor 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.
The market
Detached homes for sale in Unionville right now
- For sale now
- 66
- Median asking price
- $1.99M
- New in 7 days
- 6
- Price cuts
- 15%
Middle half: $1.61M to $2.75M
30 in 28 days
10 listings
This home is asking 165% above the median, higher than three quarters of them.
See all homes in UnionvilleAsking prices and counts of the MLS® listings on this site as of today. Asking figures only, never sold or leased prices.
Market area · filters apply to the charts below
The street
Map and tour
Transit nearby
| Station | Lines | Distance |
|---|---|---|
| Highway 7 / Sciberras Rd | YRT bus rapid transit: Viva Purple | 800 m |
| Highway 7 / Main St Unionville | YRT bus rapid transit: Viva Purple | 1 km |
| Highway 7 / Village Pkwy | YRT bus rapid transit: Viva Purple | 1.1 km |
| Highway 7 / Kennedy Rd | YRT bus rapid transit: Viva Purple | 1.3 km |
| Unionville GO | GO Transit train: Stouffville | 1.7 km |
The nearest subway, light rail, train, bus rapid transit stations 5 km, as the crow flies. Source: GO Transit schedule data (GTFS) from Metrolinx under the Open Government Licence – Ontario – Metrolinx; YRT schedule data (GTFS) from York Region Transit under the YRT Open Data Licence 2.0, downloaded October 18, 2026. Data used in this product or service is provided with the permission of Metrolinx. Metrolinx makes no representations or warranties of any kind, express or implied, with respect to the Data and assumes no responsibility for the accuracy or currency of the data used in this product or service. Contains information licensed under the Open Government Licence – Ontario – Metrolinx. Contains public transit Information made available under YRT's Open Data Licence.
Schools nearby
| Elementary | Type | Distance | EQAO average 2024–25 |
|---|---|---|---|
| St John XXIII Catholic Elementary SchoolYork CDSB | Catholic · grades JK–8 · French Immersion | 400 m | 79%Grade 6 average |
| Parkview Public SchoolYork Region DSB | Public · grades JK–8 | 450 m | 87%Grade 6 average |
| William Berczy Public SchoolYork Region DSB | Public · grades JK–8 | 750 m | 91%Grade 6 average |
| ÉÉC Sainte-Marguerite-Bourgeoys-MarkhamConseil scolaire catholique MonAvenir | French-language Catholic · grades JK–8 | 3.1 km | 95%Grade 3 average |
| Secondary | Type | Distance | Grade 9 math 2024–25 |
|---|---|---|---|
| Bill Crothers Secondary SchoolYork Region DSB | Public · grades 9–12 | 1.2 km | 79%Grade 9 math |
| Unionville High SchoolYork Region DSB | Public · grades 9–12 | 1.7 km | 88%Grade 9 math |
| St Augustine Catholic High SchoolYork CDSB | Catholic · grades 9–12 · French Immersion | 3.2 km | 97%Grade 9 math |
| École secondaire Norval-MorrisseauConseil scolaire Viamonde | French-language public · grades 9–12 | 9.9 km | 90%Grade 9 math |
EQAO: share of students at or above the provincial standard, 2024–25 (Ontario open data). These are the schools nearest this home, not the schools it is assigned to: boundaries change, and some schools take students by application. Confirm with the board before you buy. Contains information licensed under the Open Government Licence – Ontario.
The verdict
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Sold prices in Unionville are shown to signed-in members.