MLS® listing
21 Rennie Avenue: detached house for sale
$1,659,000
From the listing brokerage
Welcome To One Of The Most Prestigious Communities, Box Grove! Perfectly Located Close To The Amenities Every Family Needs, 21 Rennie Ave. Offers An Exceptional Combination Of Space, Style, And Functionality. This Impressive Manchester Model By Arista Homes Features 4 Large Bedrooms, Over 4,500 Sq Ft Of Living Space, A Finished Basement (2022), And Hardwood Flooring Throughout. Thoughtfully Upgraded And Meticulously Maintained, This Home Offers A Long List Of Tasteful Improvements (Please See Attached Feature Sheet). The Full-Brick Exterior, Beautifully Maintained Curb Appeal, And Elegant Double-Door Entry Create An Impressive First Impression. Inside, 9-Ft Ceilings Lead Into A Spacious And Functional Foyer. The Main Floor Features A Dedicated Office, Offering The Flexibility To Be Converted Into A Main-Floor Bedroom With Ensuite Bath Perfect For Multi-Generational Living Or Guests. The True Showstopper Is The Stunning Family Room, Featuring A Dramatic 17-Ft Soaring Ceiling And Open-To-Above Design, Creating An Incredible Sense Of Space And Filling The Home With Natural Light. The Renovated Kitchen Features Quartz Countertops, Large-Format Tiles, Abundant Cabinetry, And A Spacious Breakfast Area Perfect For Everyday Family Living And Entertaining. Upstairs, Four Generously Sized Bedrooms Are Complemented By Three Full Bathrooms (2022). The Luxurious Primary Retreat Features Double Sinks, A Large Glass Standing Shower, And Spacious Walk-In Closets With Built-In Shelving. Ideally Located Near Top York Region Schools And Just Minutes From Highway 407, This Home Is Also Within Walking Distance To Walmart, Longo's, Major Banks, Restaurants, And Rexall Pharmacy.
Facts on the listing
| Square feet | 3000-3500 |
|---|---|
| Style | 2-Storey |
| Basement | Finished, Full |
| Lot width | 45.98 |
| Lot depth | 91.81 |
| Lot measured in | Feet |
| Faces | West |
| Parking spaces | 4 |
| Garage | Built-In |
| Heating | Forced Air |
| Cooling | Central Air |
| Kitchens | 2 |
| Property tax | $7,219 |
| Tax year | 2025 |
| Parking | Private |
| Interior features | Carpet Free, Water Softener, Storage |
| Features | Fenced Yard, Greenbelt/Conservation, Hospital, Park, Public Transit, School |
Listing courtesy of RE/MAX REALTRON REALTY INC.. MLS® N13780746.
About this detached house
21 Rennie Avenue is a 5 bedroom detached house in TRREB's Box Grove community in Markham, listed for sale at $1,659,000. The listing shows 5 bathrooms and 3000-3500 square feet. The lot is listed as 45.98 by 91.81 feet. It comes with 4 parking spaces according to the listing. The garage is listed as built-in. The nearest main intersection given is Ninth Line & Copper Creek Dr.
These details come from the listing brokerage through TRREB's MLS® System and are not guaranteed. Measurements, parking and what is included should be checked at a showing and written into the agreement of purchase and sale.
What it costs to buy 21 Rennie Avenue
At the asking price of $1,659,000, a buyer in Markham pays Ontario land transfer tax on closing. The City of Toronto is the Ontario municipality that charges a municipal land transfer tax of its own, so there is no second tax here.
| Asking price | $1,659,000 |
|---|---|
| Ontario land transfer tax | $29,655 |
| First-time buyer refund, if you qualify | up to $4,000 |
| Minimum down payment | $331,800 |
The down payment figure is the federal minimum: 20 percent of the price, which applies at $1.5 million or more. A lender can ask for more. These figures use the asking price, so they change if you pay more or less. The tax is worked out at the published rates for a home with one or two single family residences and your lawyer confirms the final amount. Legal fees, title insurance and adjustments are extra: our closing costs guide lists them. This is general information, not legal or tax advice. Confirm the figures with a lawyer or accountant. You can change the price in our land transfer tax calculator and our mortgage calculator.
What it costs to own each month
| Property tax (2025) | $7,219 a year, about $602 a month |
|---|
That is before a mortgage payment, home insurance and utilities. These are the figures on the listing, so check the current tax bill before you rely on them.
How the asking price compares
TRREB's Market Watch recorded 108 detached sales in Markham in September 2026, at a median of $1,381,500 and an average of $1,534,139. This home is listed at $1,659,000, which is $277,500 above that median.
A city-wide median covers every size, age and neighbourhood, so it is a reference point and not a valuation of this home. Lot, size, condition and location all move the price. Our September 2026 market report and our Markham house prices page have the figures for each home type.
What to check before you make an offer
- Book a home inspection. An inspection looks at the parts of a house you cannot judge at a showing. Our guide explains what a home inspection covers and misses.
- Ask for the survey. The listing gives the lot as 45.98 by 91.81 feet. If the seller has a survey, check the lot lines, fences and any easements against it.
- Confirm what stays. Have the appliances, fixtures and any rented equipment written into the offer.
- Confirm the parking. The listing shows 4 parking spaces.
- Get your financing in writing. A lender looks at the property tax as well as the price.
- See it in person. photos do not show noise, light at different hours or the condition of the roof, the basement and the yard.
Our page on buying a home in Markham sets out the steps in order. This is general information, not legal advice. Confirm the details with a lawyer.
About Box Grove
A nineteenth century hamlet with two thousands subdivisions built around it, tucked into Markham's southeast corner next to Highway 407.
Transit: YRT local routes, Highway 407 immediately south, Markham GO a drive north
| Property type | Median | Sales and average |
|---|---|---|
| All property types | $1,177,500 | 8 sales, average $1,186,250 |
| Detached | About $1,345,000 | 5 sales, average about $1,349,000 |
Figures from TRREB's community housing market report, as listed in our Box Grove guide.
Questions about Box Grove
Is highway noise a problem?
On the streets closest to Highway 407 it can be. This is worth checking in person, with the windows open, before you commit to a specific address.
What is left of the original hamlet?
A small cluster of older buildings and streets that predate the surrounding subdivisions. It gives the neighbourhood a name and a bit of character that the newer streets do not have.
Is it convenient for commuting?
For drivers heading east or west on Highway 407, extremely. For a downtown train commute it is one of the less convenient parts of Markham, since Markham GO is a drive north.
Is there shopping nearby?
The Boxgrove retail area covers day to day needs. Larger shopping is along Markham Road and Highway 7.
Does it suit first time buyers?
It can be, particularly for buyers who drive. Resale supply is thin, though. TRREB recorded 8 sales in all of Box Grove from January to March 2026, so be ready to wait for the right property.
Read the Box Grove neighbourhood guide · All Box Grove homes for sale
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Questions about 21 Rennie Avenue
How much is land transfer tax on 21 Rennie Avenue?
At the asking price of $1,659,000 the Ontario land transfer tax is $29,655. Markham has no municipal land transfer tax. A first-time buyer who qualifies can get up to $4,000 back. Confirm the final figure with your lawyer.
What is the minimum down payment for 21 Rennie Avenue?
$331,800 at the asking price of $1,659,000, under the federal minimum down payment rules. A lender may require more.
How much is the property tax on 21 Rennie Avenue?
The listing shows $7,219 a year for 2025, about $602 a month.
Is 21 Rennie Avenue priced above or below the Markham median?
It is listed at $1,659,000. TRREB's September 2026 median for detached sales in Markham was $1,381,500 across 108 sales, so the asking price is $277,500 higher. The median covers every size and neighbourhood.
How do I book a showing for 21 Rennie Avenue?
Use the form on this page or call us. Quote MLS® N13780746. We will confirm the listing is still available and arrange a time with the listing brokerage.
Is 21 Rennie Avenue still for sale?
This page is refreshed from TRREB's MLS® System through the day. If the listing sells or is withdrawn the page says so. Contact us to confirm before you make plans.
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