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$1,244,900
For SaleListed 67 days agoPrice reduced −$35,100Virtual Tour

43 Colchester Street, Markham, ON L6B 1K4

Cornell
4
4
2,000–2,500 ft²
Detached3 Parking30.04 × 104.99 ft Lot
Listed by KELLER WILLIAMS COMPLETE REALTY

Assigned school

81% EQAO

Black Walnut Public School

Childcare

6 centres

0.4 km closest

Development

5 shown

Active applications within 800 m

Block profile

82% owners

$117k median

Small-area Census counts are randomly rounded by Statistics Canada.

Explore this address →

Property Information

Property TypeDetached
Lot Size30.04 × 104.99 ft
BasementUnfinished
Parking3 parking spaces · Available · Garage · Detached
Property taxes$5,427/yr (2026)
Days on Market67 Days
Listed DateJun 30, 2026
MLS® NumberN13506900

Monthly Cost

Description

Exceptional Income-Generating Detached Home with Coach House in Prestigious Cornell, Markham! A rare investment opportunity offering multiple income-generating possibilities. This beautifully maintained detached home features a fully self-contained coach house, ideal for homeowners seeking strong rental income, a valuable mortgage helper, multigenerational living, or flexible dual-living arrangements. Situated on a premium lot with parking for 3 vehicles (double garage + 1 driveway), this remarkable property offers approximately 2,000 sq. ft. (Main +Coach) living space, plus additional income potential from the coach house and future basement development. The property features 9-ft ceilings, a bright open-concept layout, elegant finishes, and spacious living and dining areas centered around a cozy fireplace. Enjoy a large front porch veranda and a professionally designed 3-tier deck with interlocking brick patio and gas BBQ hookup at the backyard for entertainment and gatherings. Offering 4 spacious bedrooms and 4 bathrooms (3 in main house, 1 in coach house), this home is ideal for growing families. Additional highlights include a large cold cellar with unfinished basement, ready for future customization. With minor modifications, the existing separate entrance can provide private basement access, creating potential for an additional income-producing suite. The fully self-contained coach house features its own private entrance, kitchen, bathroom, laundry, and separate living space-perfect for extended family/ for stable income generation. Projected rental income of approximately $1,800/month($ 21,600 Annually) makes it an excellent mortgage helper. Includes a full set of appliances for both the main house and coach house. Ideally located near top-ranking schools, parks, trails, Markham Stouffville Hospital, Cornell Community Centre, Mount Joy GO Station, and Highway 407. An excellent opportunity of investment with remarkable returns.

Listing History

Event
Date
Price
Price Changed
Sep 2, 2026
$1,244,900
Listed
Jun 30, 2026
$1,280,000

Shows activity for this MLS® listing. Prior listings and sold records appear when available.

Location

Map showing 43 Colchester Street, Markham, ON L6B 1K4 inside the Black Walnut Public School attendance boundaryView on Map

School Catchments

School boundaries and eligibility may change. Confirm school eligibility directly with the school board.

All Markham school catchments

Licensed Childcare Nearby

6 licensed centres nearby · closest 399 m

Licensed Child Care Centre
Early Blooms Montessori
2780 Bur Oak Avenue, Markham
0.4 km
Full day
Operator: Vonam
Licence #56424·Child Care Centre
Licensed Child Care Centre
Upper Canada Child Care At Little Rouge Ps
571 Country Glen Road, Markham
0.6 km
Full day · Half day · Before & after school
Operator: Upper Canada Creative Child Care Centres Of Ontario
Licence #0004370·Child Care Centre
Licensed Child Care Centre
St Joseph Childrens Program
388 Whites Hill Avenue, Markham
0.6 km
Full day · Before & after school
Operator: The Village - Children'S Programs
Licence #55717·Child Care Centre
Licensed Child Care Centre
Kids Connection At Black Walnut
30 John Allan Cameron Street, Markham
0.8 km
Before & after school
Operator: Kids Connection Care And Education
Licence #0006353·Child Care Centre
Licensed Child Care Centre
Upper Canada Child Care At Cornell Village Ps
186 Country Glen Road, Markham
0.8 km
Before & after school
Operator: Upper Canada Creative Child Care Centres Of Ontario
Licence #0002219·Child Care Centre
Licensed Child Care Centre
All About Kids Inc. - All About Kids Day Care
17 Cornell Meadows Avenue, Markham
0.9 km
Full day · Half day · Before & after school
Operator: All About Kids Inc.
Licence #0001480·Child Care Centre

What’s changing nearby

Nearest 5 within 800m

Proposed and recently approved developments near this home, largest first.

All development in this area

Approximate distance based on the municipality’s mapped application location.

Source: The Regional Municipality of York open data, adapted by DistrictIQ. York Region Open Data Licence.

Area Checks

Also checked, nothing flagged at this location: flood hazard mapping, conservation-regulated areas, provincially significant wetlands, the Greenbelt, the Oak Ridges Moraine, the Niagara Escarpment plan, areas of natural and scientific interest, rail corridors, hydro transmission corridors.

Screened against public government mapping at this home’s location — simplified boundaries, not a survey, an appraisal or a legal determination. Confirm anything that matters with the authority named.

About Cornell

View Cornell on Market

Who lives here

A snapshot of this home’s immediate area — the census dissemination area it sits in.

82%
Homeowners
75%
Households with kids
$117,000
Median income
38
Median age
More about this area
3.1
Avg. household size
52%
University degree
50%
Newcomers (immigrants)
Age profile11,590 residents
Under 2028%
20–3417%
35–6442%
65+13%

StatCan 2021 Census · this home’s dissemination area (DA 35191292). Values are randomly rounded by Statistics Canada for privacy.

Homes for sale nearby

DistrictIQ Inc., BrokerageMLS® data provided by PropTxUpdated Sep 2, 2026
Data sources & legal disclosures

Listing data is provided by the Toronto Regional Real Estate Board (TRREB) and PropTx under the Internet Data Exchange (IDX) program. The information is deemed reliable but is not guaranteed accurate by TRREB, PropTx, CREA or DistrictIQ Inc., Brokerage, may not reflect the most current status, and is subject to errors, omissions, prior sale, change, or withdrawal without notice. Listings should be independently verified.

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