Published 29 September 2026 · By Jatin Dua, Broker of Record, RE/MAX Quantum Realty
In August 2026 TRREB recorded 137 detached house sales in Markham at a median of $1,488,000 and an average of $1,611,773. Detached houses sold at 98 percent of list price after an average of 28 days on market. Semi-detached houses had a median of $945,000 on 15 sales, and freehold townhouses a median of $995,000 on 39 sales. TRREB’s MLS® Home Price Index benchmark for a typical Markham detached house was $1,447,800, down 6.26 percent from August 2025, so Markham prices are lower than a year ago. At August’s pace there were about 3.3 months of detached supply (my arithmetic), tighter than the 5.2 months across York Region. Your own house can sit well above or below the median depending on lot, basement, condition and street, so price it from recent comparable sales, not the town number.
Markham house prices, August 2026
| August 2026 | Area | Sales | Median price | Average price | Sale to list | Avg. days on market |
|---|---|---|---|---|---|---|
| Detached | Markham | 137 | $1,488,000 | $1,611,773 | 98% | 28 |
| Detached | York Region | 541 | $1,325,000 | $1,482,221 | 97% | 34 |
| Detached | All TRREB areas | 2,399 | $1,100,000 | $1,288,669 | 97% | 33 |
| Semi-detached | Markham | 15 | $945,000 | $958,133 | 97% | 43 |
| Semi-detached | York Region | 51 | $935,000 | $944,765 | 98% | 30 |
| Semi-detached | All TRREB areas | 439 | $866,000 | $931,665 | 99% | 28 |
| Freehold townhouse | Markham | 39 | $995,000 | $1,031,119 | 100% | 36 |
| Freehold townhouse | York Region | 142 | $974,900 | $986,648 | 99% | 34 |
| Freehold townhouse | All TRREB areas | 437 | $840,000 | $882,060 | 98% | 31 |
Source: TRREB Market Watch, August 2026, detached, semi-detached and att/row/townhouse (freehold) tables. This is one month of sales, so treat it as a snapshot. Markham’s 15 semi-detached sales sit right at the edge of a reliable sample; one or two unusual sales can move that median a lot.
Markham is one of the higher-priced municipalities in York Region. Its detached median was $163,000 above York Region’s and $388,000 above the median for all TRREB areas (my arithmetic). Vaughan ($1,425,000) and Richmond Hill ($1,482,500) traded in a similar band.
Are Markham house prices going down? The benchmark
The median tells you what the houses that happened to sell in August went for. To see the trend, TRREB publishes the MLS® Home Price Index. The benchmark is TRREB’s model price for a “typical” home with set features, not an actual sale, which is why it is steadier than a one-month median.
| HPI benchmark, August 2026 | Markham | York Region | All TRREB areas |
|---|---|---|---|
| Composite (all home types) | $1,055,300 (−6.42%) | $1,089,400 (−6.18%) | $925,900 (−4.46%) |
| Single-family detached | $1,447,800 (−6.26%) | $1,344,400 (−5.95%) | $1,209,600 (−4.50%) |
| Single-family attached | $1,037,800 (−4.80%) | $980,700 (−4.89%) | $919,000 (−4.40%) |
Change is year over year, against August 2025. Source: TRREB Market Watch, August 2026, MLS® HPI table.
So yes: a typical Markham detached house was benchmarked about 6 percent below a year earlier, more than York Region or the TRREB average. Attached houses (semis and row houses) fell less, 4.80 percent. That does not mean your house lost exactly 6.26 percent. It means the pricing a neighbour got in the summer of 2025 is not a fair anchor today. For a view on where prices may go next, see will Toronto house prices drop in 2027.
What the numbers mean for your list price
Three signals matter more than the headline median:
- Months of inventory. Markham had 449 detached houses for sale against 137 sales, about 3.3 months of supply (my arithmetic: active listings divided by sales). York Region was at about 5.2 months and all TRREB areas at about 4.7. Markham detached supply was tighter than its region.
- Sales to new listings. 137 detached sales against 251 new listings is about 55 percent (my arithmetic), against about 41 percent across York Region. Freehold townhouses were similar, at about 56 percent. Semis were about 47 percent on a small sample.
- Sale to list and days on market. Detached houses sold at 98 percent of list price after 28 days on average, faster than York Region’s 34 days. Freehold townhouses sold at 100 percent of list after 36 days.
Read together: a well-priced Markham detached house found a buyer in about a month, close to asking. The 98 percent only counts houses that sold, against their final, often reduced, list price.
Also watch the gap between average and median. Markham’s detached average was $123,773 above the median (my arithmetic), because a smaller number of large, newer or estate homes pull the average up. For a typical house, anchor to the median and to your own comparables, never the average. For timing, see how long it takes to sell a house in 2026.
How TRREB reports Markham
TRREB splits the City of Toronto into lettered districts such as C14 or E07, but it reports Markham as one municipality inside York Region, with no districts. That single row blends very different markets:
- Unionville. The historic Main Street core and the established streets around it, plus newer subdivisions to the north.
- Markham Village and the older east side. Around Main Street Markham and Markham GO, a mix of older houses on bigger lots and newer infill.
- Thornhill east of Yonge and the south end. Established neighbourhoods near Steeles Avenue, where renovation level varies a lot from house to house.
- Newer planned communities. Cornell, Berczy, Wismer, Greensborough, Cathedraltown and Box Grove, with newer detached houses, semis and freehold towns on smaller lots.
- Estate pockets. Angus Glen and similar areas with larger lots and custom homes, which sit well above the median and have few true comparables.
The monthly Market Watch publishes no community rows for Markham, so none is quoted here.
What moves your house above or below the median
- Lot frontage and depth. In Markham, as across the GTA, land is a large share of the value. A wider or deeper lot, or a pie-shaped lot with a big yard, puts you above houses of the same size on a standard lot. See how lot size and frontage change value.
- Detached, semi or townhouse. The August medians were $1,488,000, $945,000 and $995,000. In August, Markham’s freehold towns sold for more than its semis at the median.
- Basement. A finished basement helps. A separate entrance helps more. A second unit that has been permitted and inspected by the City of Markham is worth more to more buyers than one that was never approved, because a buyer’s lender and insurer treat them differently.
- Garage and parking. A double garage and a driveway that fits two or more cars is the norm in much of Markham; houses with a single garage or a laneway garage compete with that.
- Renovation level. An updated kitchen and bathrooms, newer flooring and a clean, neutral finish sell faster. Dated houses sell too, but to buyers who price in the work.
- Street and sub-area. A quiet crescent backing onto green space is not the same as a lot backing onto a major road such as Highway 7 or Kennedy Road.
- Schools. Many Markham buyers start with the school boundary. Check the current boundary for your address with the school board; boundaries change.
- Transit and highways. Walking distance to a Stouffville GO line station (Unionville, Centennial, Markham or Mount Joy), the Viva rapid transit corridor on Highway 7, and quick access to Highways 404 and 407 all widen your buyer pool.
- Age and big-ticket systems. Buyers and their inspectors look hard at the roof, windows, furnace and air conditioning, electrical panel and plumbing. On older houses, replaced systems with receipts support your price.
No published source puts a reliable dollar figure on each of these for Markham; comparable sales measure them. Test any pre-listing work in the renovation ROI calculator.
The land transfer tax point
Markham buyers pay only the Ontario land transfer tax. York Region has no municipal land transfer tax; the City of Toronto does. At Markham’s $1,488,000 detached median, the Ontario tax is $26,235. The same purchase just south of Steeles Avenue in Toronto would add a matching $26,235 Toronto municipal tax, $52,470 in total (my arithmetic from the published brackets, before first-time buyer refunds of up to $4,000 provincially and up to $4,475 in Toronto).
That matters because many Markham buyers also look at Scarborough and North York. If yours is one of them, the saving is real cash at closing. Compare the Toronto side in what houses are worth in Scarborough and in North York, or run any price through the land transfer tax calculator.
How to get an accurate number for your house
The median is a starting line, not your price. Your property tax assessment is not your price either: MPAC assessments for 2026 taxes are still based on 1 January 2016 values.
Two tools help here: the AI home value estimator below gives you a range for your house in about a minute, and the net proceeds calculator turns any price into what actually lands in your account.
After that, get a broker price opinion or a comparative market analysis built from the three to six most recent sales of houses like yours, on similar lots in your part of Markham, adjusted for basement, garage, renovation level and condition, and checked against what is for sale now. You can also read Markham home values for more local context. If you own a condo as well, see what condos are worth in Markham. And if you are comparing with next door, see what houses are worth in Richmond Hill and in Vaughan.
If the house has been your principal residence, the CRA still expects you to report the sale on your tax return, even when the gain is fully exempt. Ask your accountant how that applies to you.
I sell houses across Toronto and the whole GTA, including York Region, and I price Markham houses from the sales that actually compete with yours, not the town average. When you have your estimator range, book a call or phone 833-330-1925.
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Frequently asked questions
How much is a detached house worth in Markham in 2026?
In August 2026, TRREB recorded 137 detached sales in Markham at a median of $1,488,000 and an average of $1,611,773. The MLS® HPI benchmark for a typical Markham detached house was $1,447,800. Your own house depends on lot size, basement, condition and street, so recent sales of comparable houses nearby are the real answer.
Are house prices going down in Markham?
Compared with a year ago, yes. TRREB’s benchmark for a Markham detached house was $1,447,800 in August 2026, down 6.26 percent from August 2025, and the composite benchmark for all home types was down 6.42 percent. One month of sales cannot tell you where prices go next, but last year’s neighbour sale is not a fair anchor.
Is now a good time to sell my house in Markham?
It depends on your plans, but Markham detached supply was relatively tight in August 2026: about 3.3 months of inventory and about 55 percent of new listings selling (my arithmetic from TRREB’s figures), against about 5.2 months across York Region. Well-priced houses sold at 98 percent of list price on average.
How long does it take to sell a house in Markham?
Detached houses that sold in Markham in August 2026 averaged 28 days on market, against 34 days across York Region. Freehold townhouses averaged 36 days and semis 43 days, on a small sample of 15 sales. Overpriced houses take longer, so the list price you choose matters more than the season.
What is the average price of a semi-detached house in Markham?
In August 2026 Markham’s 15 semi-detached sales averaged $958,133, with a median of $945,000, selling at 97 percent of list price. Fifteen sales is a small sample, so one unusual sale can move those numbers. The benchmark for an attached house in Markham was $1,037,800, down 4.80 percent year over year.
Sources
- TRREB — Market Watch, August 2026 — detached, semi-detached and freehold townhouse tables, and the MLS HPI benchmark
- Government of Ontario — Calculating land transfer tax — provincial brackets
- Government of Ontario — Land transfer tax refunds for first-time homebuyers — up to $4,000
- City of Toronto — Municipal Land Transfer Tax rates and fees — Toronto only
- MPAC — Assessment cycle — 2026 taxes still based on 1 January 2016 values
- CRA — Reporting the sale of your principal residence — report the sale even when fully exempt
Related reading
- How much is my house worth in Richmond Hill?
- How much is my house worth in Vaughan?
- How much is my house worth in Scarborough?
- How much is my condo worth in Markham?
- Markham home values
- Choosing a realtor in Markham
- What is my home worth in Toronto and the GTA?
- What is a comparative market analysis (CMA)?
About the author — Jatin Dua, Toronto and GTA real estate broker
I am Jatin Dua, Broker of Record and co-founder of RE/MAX Quantum Realty Inc., Brokerage, Unit 101, 799 The Queensway, Toronto. I work with buyers and sellers across Toronto and the GTA and have helped more than 100 families sell. Four-plus years of active GTA transactions and over $100 million in sales volume. Every figure here comes from a published table, regulator or statute linked in the sources, so you can check all of it without asking me.
Reach me at connect@jatindua.com or 833-330-1925, or book a call.