143 Dudley Avenue, Markham, ON
Thornhill, Markham · MLS® N13717728
About this home
In short
- The Perfect Family Home Is Here.
- A large, inviting front porch leads into a beautifully renovated & maintained interior showcasing hardwood floors & crown moulding across both levels, complemented by...
- A separate entrance leads to the full & finished lower level, offering above-grade windows, hardwood floors & crown moulding.
- The oversized laundry room provides cabinetry, a laundry sink, above-grade windows and a separate shower-especially convenient after enjoying the gated inground pool.
- Outdoors, discover a private, fully fenced backyard oasis with an elevated deck, landscaped grounds and a large storage shed.
The Perfect Family Home Is Here! Welcome to 143 Dudley Avenue, a spacious 3+1-bedroom bungalow situated on an impressive 65.5-by-150-foot lot in the heart of Thornhill. A large, inviting front porch leads into a beautifully renovated & maintained interior showcasing hardwood floors & crown moulding across both levels, complemented by elegant wainscoting along the main-floor hallways. The bright living room features a large picture window, while the dining room provides a welcoming setting for family meals & entertaining. The exquisite kitchen offers marble countertops, a ceramic backsplash, stainless steel appliances & a sun-filled breakfast nook. All three main-floor bedrooms feature generous closet space, windows and crown moulding, while the three-piece bathroom is finished with ceramic flooring, a matching backsplash, vanity & window. A separate entrance leads to the full & finished lower level, offering above-grade windows, hardwood floors & crown moulding. The expansive recreation area includes a sink for future wet-bar possibilities, accompanied by a three-piece bathroom with a pedestal sink & frameless glass walk-in shower, a large bedroom & an adjoining room ideal for an office or additional living area. The oversized laundry room provides cabinetry, a laundry sink, above-grade windows and a separate shower-especially convenient after enjoying the gated inground pool. Outdoors, discover a private, fully fenced backyard oasis with an elevated deck, landscaped grounds and a large storage shed. A detached two-car garage, private double driveway & parking for up to eight vehicles add exceptional convenience. Close to Woodland Park, Pomona Mills Park, Thornhill Park, The Thornhill Club, Ladies' Golf Club of Toronto, Thornhill Secondary School, E.J. Sand Public School, Baythorn Public School & Henderson Avenue Public School. YRT/Viva transit, TTC near & Highways 7, 404 & 407, with the future Clark Station on the planned TTC Yonge North Subway Extension nearby.
Key facts
- Property type
- Detached, Bungalow
- MLS®
- N13717728
- Bedrooms
- 3+1 (4 total)
- Bathrooms
- 2
- Size
- 1100-1500 sq ft
- Lot
- 65.57 × 150.45 ft
- Cross streets
- Yonge St. & Clark Ave.
- Parking
- 2 garage · 8 parking (detached)
- Driveway
- Private Double
- Basement
- Finished, Full, Separate Entrance
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Brick
- Foundation
- Block
- Roof
- Asphalt Shingle
- Sewer
- Sewer
- Pool
- Inground, Outdoor
- Property tax
- $7,805 / 2026
- Days on market
- 24
- Listing brokerage
- SUTTON GROUP-ADMIRAL REALTY INC.
Rooms
double closet · crown moulding · hardwood floor
large window · crown moulding · hardwood floor
above grade window · crown moulding
large closet · crown moulding · hardwood floor
3 pc bath · b/i vanity · ceramic floor
marble counter · ceramic backsplash · stainless steel appl
separate shower · above grade window · laundry sink
3 pc bath · separate shower · pedestal sink
hardwood floor · above grade window · crown moulding
double closet · crown moulding · hardwood floor
crown moulding · window · hardwood floor
crown moulding · hardwood floor · wet bar
picture window · crown moulding · hardwood floor
Listed at $1,599,000. Recent sales of homes like it put this one around $1.43M, so the ask is about 12% above what similar homes have sold for.
If it sells at this ask, expect about $1.49M, typically $1.43M to $1.55M: that is where homes here have closed against their asks in the last 90 days (5 closings).
Total price vs nearby homes. Fair value about $1.43M, learned from recent GTA sales.
The market behind the math:
About 7.2 months of inventory: 12 detached homes for sale in the area against 5 closings in the last 90 days. Under two months favours sellers, over four favours buyers.
Price per square foot: this home lists at $1,230/sqft against an area asking average of $951/sqft. Size and $/sqft both feed the estimate above.
- Separate-entrance basement apartment features. A finished 1 bed basement apartment with a separate entrance. A self-contained space for extended family, guests or potential income. Basements do rent in Thornhill: 8 of the 40 detached leases here lately were basement units, around $1,900 a month. That makes the suite real income, and comparable-sales math under-prices it, so read the estimate as a floor. Second-suite retrofit status is not verified. A buyer intending to rent should confirm requirements with the City of Markham.
- Inground pool. Priced into the comparison on the assumption it is clean and modern. A pool costs more to build than resale pays back, and condition is the in-person call.
How this estimate is builtthe short version
This figure comes from a model built on about 44,000 recent GTA sales. It weighs this home’s tax assessment, size, age, location and features against what homes like it actually sold for, including sales in this neighbourhood.
It never sees the asking price. The 6 most comparable recent sales on their own, adjusted for size, beds, baths and lot, point to about $1.34M. Condition and finishes remain an in-person call.
What the listing highlights5 points to weigh
Claims from the listing, worth confirming in person. I can book you a private showing.
- Separate entrance / basement suite: rental or in-law income potential, if it is legally registered and retrofit-compliant. Income potential
- Renovated / rebuilt: recent work can mean fewer upfront costs, worth confirming the scope, quality, and that permits were pulled. Value driver
- Pool: lifestyle appeal, but adds maintenance, insurance, and resale is mixed. Weigh carefully
- Premium lot / gardens: lot size and privacy hold value and cannot be changed, verify frontage, depth, and any easements. Value driver
- Hardwood floors: quality hardwood is durable and broadly desirable. Lifestyle
Schools & getting aroundcatchment and transit
Its public catchment (Thornhill SS) tests around the provincial average, a steady, family-friendly draw. The full EQAO breakdown is below.
Read this with carewhy it’s an estimate, not an appraisal
There were not many closely comparable homes right in Thornhill, so I widened the search to the surrounding area.
Based on 6 comparable homes that sold in Thornhill over the past two years, from 32 closings there.
Nothing closely matching this home is listed nearby right now, so these are the nearest detached listings on the market. Homes like this one have recently closed around $1.43M, which is where my estimate comes from.
Per square foot, these ask about $857/sqft; this home lists at $1,230/sqft. Size is part of the price story, not just the sticker.
The 5 closest of 6 active listings nearby.
See all comparable homesNeighbourhood & location
Thornhill, Markham, ON
Enter a workplace or destination and we’ll show the door-to-door time by car, transit and bike.
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). Markham.
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.
Also nearby: 9 more schools within 2.5 km
Not the assigned catchment: schools a family here could reach, with EQAO results where published.
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 4.24% via Ratehub.ca (as of September 18, 2026); conventional rates run a little higher.
Mortgage amount $1,279,200 · 4.39% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $7,002
- Property tax
- $650
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $7,652
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $28,455
- Estimated closing costs
- $28,455
Plus your down payment of $319,800. 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
- $420,121
- Principal paid down
- $158,164
- Interest paid
- $261,957
- Balance remaining
- $1,121,036
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
The suite is real income here: basements rent in Thornhill (8 of 40 recent detached leases were basement units, around $1,900 a month). The figure above is the whole house on one lease; rented as two units, the suite alone brings about $1,900 a month on top of the upper floors. Permitted use is worth confirming with the city.
Thinking of this home as an investment? We will pull real comparable rents and run the full numbers with you.
Talk about the numbersThe last 5 whole-home leases in Thornhill signed at a median of $4,424 a month; adjusted to this home for size, beds and baths, and for where rents stood the month each signed, that is $3,948. The gross yield above is on the asking price, before taxes and upkeep; the cap rate is after them. A finished basement or second suite can push real rent above it. Taxes, fees, and vacancy vary by property, and cap rate is before financing.
Helpful resources
All information deemed reliable but not guaranteed. For personal, non-commercial use only. Listing courtesy of SUTTON GROUP-ADMIRAL REALTY INC.. MLS®/PropTx.