850 Cosburn Avenue, Toronto, ON
East York, Toronto · MLS® E13438554
About this home
Custom-built and truly one-of-a-kind, this East York backsplit offers approximately 4,200 sq. ft. of beautifully designed living space, including 3,005 sq. ft. above grade, a legal basement unit, and a 432 sq. ft. rooftop terrace. The open-concept main floor features soaring 10-ft ceilings, floor-to-ceiling windows, a warm family-room fireplace, and a modern chef's kitchen with waterfall island, gas cooktop, and premium built-in appliances. Upstairs, 4 bedrooms, 3 bathrooms, central skylights, upper-level laundry, a top-floor office area, and a private bedroom suite with direct access to the oversized rooftop terrace create an ideal layout for both family living and entertaining. The primary retreat includes its own fireplace, soaker tub, and double vanity, while the finished basement unit offers a separate entrance, along with a kitchen and laundry, providing excellent flexibility for extended family, guest accommodations, or potential rental income. Complete with built-in security cameras, potential 2-car driveway parking, a fenced backyard with low-maintenance composite deck, and a generous 28 x 110 ft lot, this home is steps to Woodbine Subway, Danforth GO, parks, schools, Sobeys, Danforth amenities, and minutes to the DVP, Woodbine Beach, and Downtown Toronto.
Key facts
- Property type
- Detached, 2-Storey
- MLS®
- E13438554
- Bedrooms
- 5 (4 + 1)
- Bathrooms
- 5 (1 half)
- Size
- 2500-3000
- Lot
- 28 × 110 ft
- Cross streets
- Woodbine/O'connor
- Parking
- 1 parking
- Driveway
- Private
- Basement
- Finished, Separate Entrance
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Brick, Stone
- Foundation
- Concrete Block
- Roof
- Asphalt Shingle, Flat
- Sewer
- Sewer
- Property tax
- $11,311 / 2025
- Days on market
- 35
- Listing brokerage
- ROYAL LEPAGE SIGNATURE REALTY
Listed at $1,899,000, this home is about 27% below comparable homes, worth a close look. The number above is my independent estimate of value, not the asking price.
Based on 6 similar homes nearby, adjusted for size, beds, and baths.Median of 6 comparable active listings, adjusted for size, beds, and baths. The city (MPAC) assessment points to about $2.27M, a bit lower.
How I got there
Here is the exact math behind the estimate. I start from the closest comparable listing and adjust for the real differences (size, beds, baths) to land on a like-for-like value for this home.
- Closest comparable, listed at $2.63M
- Bedrooms −$30K
- Adjusts to $2.60M
That comparable adjusts to $2.60M; the $2.58M estimate above is the median of all 6 comparables, which is steadier than any single home.This uses comparable active listings, not sold prices. Lot, condition, and finishes are my in-person call, and I can run a full CMA with recent solds.
Its public catchment (Parkside Elementary School) tests around the provincial average, a steady, family-friendly draw. The full EQAO breakdown is below.
On location, it is moderately walkable, so some daily errands are within reach and for the rest you will likely drive. Cosburn Ave at Woodbine Ave is about a 1-minute walk away.
Total price vs nearby homes. Fair value about $2.58M, median of 6 comparables.
What the listing highlightsThese are claims from the listing. The only way to know for sure is to see it in person, and I am happy to book you a private showing.
- Separate entrance / basement suite: rental or in-law income potential, if it is legally registered and retrofit-compliant.
- Finished basement: added living space, worth checking ceiling height and that the work was permitted.
- Upscale kitchen: a genuine value driver, verify the appliances, stone, and finishes in person.
- Tall ceilings: they transform how a home feels, worth confirming the actual heights room to room.
- Open-concept layout: modern, sought-after flow.
- Income potential
- Value driver
- Worth verifying
- Lifestyle
The closest active listings by size, beds, and price, so you can see what this home is up against.
The 5 closest of 6 active listings nearby.
See all comparable homesThis home lists 25% below the area average of $924/sqft.
34 days longer than the Toronto average (1 days).
View comparable listingsPrice per square foot vs the area average.
Neighbourhood & location
East York, Toronto, ON
Enter a workplace or destination and we’ll show the door-to-door time by car, transit and bike.
Getting around
WalkableA walkability read built from the amenities around this home: how close the nearest transit stop is, and how many grocery, dining, park, and pharmacy destinations fall within a 15-minute walk. It is a guide, not a guarantee. Places data from Google.
Many errands can be done on foot; a car still helps.
🚉 Nearest transit: Cosburn Ave at Woodbine Ave, about 59 m away
Within a 15-minute (1.5 km) walk.
How asking prices compare in the closest areas to this home. Longer bars mean a pricier market.
Typical asking price of active listings of the same type, per area (outliers removed). Toronto.
Get the full neighbourhood report (schools, parks, transit & safety) →
The public and Catholic schools this address is zoned for, with EQAO results (the share of students meeting Ontario's provincial standard).
School attendance boundaries and EQAO results are Ontario government data and can change. Confirm the current catchment with the school board before relying on it.
Affordability & Mortgage
Income needed assumes a ~32% GDS ratio; weekly is mortgage principal & interest only. Price ÷ income is the home price over the income needed. Fixed reference assumptions so listings compare on equal footing, not a lending decision.
Calculate and customize your mortgage and other expenses
Adjust the down payment, rate, and amortization, and add property tax, condo fees, and heating to see your true monthly cost.
Your numbers
Homes over $1.5M can't be insured, so 20% down or more is required.
Conventional (20%+ down). Best insured 5-year fixed 3.99% via Ratehub.ca (as of July 17, 2026); conventional rates run a little higher.
Mortgage amount $1,519,200 · 4.14% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $8,107
- Property tax
- $943
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $9,050
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $34,455
- Toronto municipal land transfer tax
- $34,455
- Estimated closing costs
- $68,910
Plus your down payment of $379,800. Legal fees, title insurance, and adjustments are extra and vary by deal.
Mortgage stress test
Lenders qualify you at the greater of your rate plus 2% or 5.25%. You do not pay this rate. It just shows you could still handle payments if rates rose, so aim to stay comfortable at this higher number.
Over the full 25 years
At the end of your 5-year term
- Total paid over the term
- $486,421
- Principal paid down
- $193,470
- Interest paid
- $292,950
- Balance remaining
- $1,325,730
Talk to Team Asgarian about your options
Rates and programs change often. We will connect you with a trusted mortgage professional and build a plan that fits your budget and goals.
Estimates only, not a mortgage quote or pre-approval. Figures use Canadian semi-annual compounding, current minimum down-payment rules, CMHC premium tiers, and Ontario (plus Toronto, when selected) land transfer tax. Actual rates, taxes, insurance, and closing costs vary by lender and property. Confirm every number with your mortgage professional.
Investor snapshot
Income potential: the basement has a separate entrance, which often supports a rentable in-law or second suite. That can lift real rent well above the figure above and help carry the mortgage. Ask us about permitted use in this area.
Thinking of this home as an investment? We will pull real comparable rents and run the full numbers with you.
Talk about the numbersEstimates only. Rent is modelled on above-grade size and local norms, so a finished basement or second suite (a separate entrance often means one) can push real rent well above this. Taxes, fees, and vacancy vary by property, and cap rate is before financing. A starting point, not a final number, let us run the real ones with you.
Helpful resources
All information deemed reliable but not guaranteed. For personal, non-commercial use only. Listing courtesy of ROYAL LEPAGE SIGNATURE REALTY. MLS®/PropTx.