89 Castan Avenue, Markham, ON
Village Green-South Unionville, Markham · MLS® N13734868
About this home
In short
- Welcome to this beautifully upgraded, south-facing, 4-bedroom home rarely offered in the desirable South Unionville community.
- Offering approximately 1,850 sq. ft. of bright, functional living space above grade, this move-in-ready home has been thoughtfully refreshed for modern family living.
- The newly renovated kitchen features sleek cabinetry, elegant countertops, brand-new stove, dishwasher and range hood, and contemporary finishes.
- Both upstairs bathrooms have also been comprehensively renovated with brand-new vanities, refreshed tilework, stylish fixtures, and updated lighting.
- Step outside to the newly renovated deck, perfect for outdoor dining, relaxing, and family gatherings.
Welcome to this beautifully upgraded, south-facing, 4-bedroom home rarely offered in the desirable South Unionville community. Offering approximately 1,850 sq. ft. of bright, functional living space above grade, this move-in-ready home has been thoughtfully refreshed for modern family living. Freshly painted throughout with modern light fixtures, the home features abundant natural light. The south-facing family room and breakfast area are bathed in sunlight throughout the day, creating warm and inviting spaces for everyday living and entertaining.The newly renovated kitchen features sleek cabinetry, elegant countertops, brand-new stove, dishwasher and range hood, and contemporary finishes. Both upstairs bathrooms have also been comprehensively renovated with brand-new vanities, refreshed tilework, stylish fixtures, and updated lighting.Step outside to the newly renovated deck, perfect for outdoor dining, relaxing, and family gatherings.Located in a quiet, family-friendly neighbourhood near Markville Secondary School, Unionville Meadows Public School, parks, playgrounds, T&T Supermarket, restaurants, Markham Pan Am Centre, YMCA, Main Street Unionville, and Markville Shopping Centre. Easy access to Highways 407 and 404 and Unionville GO Station.Bright, spacious, and move-in ready, this beautifully upgraded home offers an excellent opportunity for first-time buyers, growing families and savvy investors in the heart of South Unionville.
Key facts
- Property type
- Semi-Detached, 2-Storey
- MLS®
- N13734868
- Bedrooms
- 4
- Bathrooms
- 3 (1 half)
- Size
- 1500-2000 sq ft
- Lot
- 26.11 × 111.32 ft
- Cross streets
- Residential
- Parking
- 1 garage · 2 parking (built-in)
- Driveway
- Private
- Basement
- Unfinished
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Brick
- Foundation
- Concrete
- Roof
- Asphalt Shingle
- Sewer
- Sewer
- Property tax
- $5,369 / 2026
- Days on market
- 18
- Listing brokerage
- FIRST CLASS REALTY INC.
Rooms
hardwood floor · combined w/living · window
hardwood floor · 4 pc ensuite · walk-in closet(s)
hardwood floor · combined w/dining · window
hardwood floor · window · closet
hardwood floor · open concept · window
ceramic floor · w/o to deck · open concept
ceramic floor · ceramic backsplash · pantry
hardwood floor · window · closet
hardwood floor · window · closet
Listed at $1,229,000. Recent sales of homes like it put this one around $1.04M, so the ask is about 18% above what similar homes have sold for.
The ask and what recent sales support disagree. When they differ this much, the asking price has been the closer guide about 87% of the time. Recent GTA homes first listed this far above their automated estimate sold at about 95% of the original ask, in a median 36 days, 26% of them after a price reduction (750 sales).
Total price vs nearby homes. Fair value about $1.04M, learned from recent GTA sales.
The market behind the math:
Price per square foot: this home lists at $702/sqft against an area asking average of $601/sqft. Size and $/sqft both feed the estimate above.
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 17 most comparable recent sales on their own, adjusted for size, beds, baths and lot, point to about $1.18M. Condition and finishes remain an in-person call.
What the listing highlights1 point to weigh
Claims from the listing, worth confirming in person. I can book you a private showing.
- Renovated / rebuilt: recent work can mean fewer upfront costs, worth confirming the scope, quality, and that permits were pulled. Value driver
Schools & getting aroundcatchment and transit
On schools, this address is zoned for Markville SS, one of the higher-rated public schools in the area. A strong catchment tends to hold value and widen your resale pool, especially with family buyers.
Read this with carewhy it’s an estimate, not an appraisal
There were not many closely comparable homes right in Village Green-South Unionville, so I widened the search to the surrounding area.
Based on 17 comparable homes that sold in Village Green-South Unionville over the past two years, from 20 closings there.
Nothing closely matching this home is listed nearby right now, so these are the nearest semi-detached listings on the market. Homes like this one have recently closed around $1.04M, which is where my estimate comes from.
Per square foot, these ask about $644/sqft; this home lists at $702/sqft. Size is part of the price story, not just the sticker.
The 3 closest active listings nearby.
See all comparable homesNeighbourhood & location
Village Green-South Unionville, 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: 11 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
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 $983,200 · 4.39% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $5,382
- Property tax
- $447
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $5,829
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $21,055
- Estimated closing costs
- $21,055
Plus your down payment of $245,800. 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
- $322,907
- Principal paid down
- $121,565
- Interest paid
- $201,342
- Balance remaining
- $861,635
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
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 12 whole-home leases in Village Green-South Unionville signed at a median of $3,411 a month; adjusted to this home for size, beds and baths, and for where rents stood the month each signed, that is $3,376. 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 FIRST CLASS REALTY INC.. MLS®/PropTx.