Michael John Lau · REALTOR® · Neighbourhood Comparison · Markham · Updated October 2026
Unionville vs Cornell
The short answer: Unionville is the established, higher-priced choice: a heritage Main Street, mature streets, Unionville GO, and detached homes that sold for a median of about $1,625,000 in the second quarter of 2026. Cornell is the newer, planned community in east Markham: rear-lane homes with front porches, walkable village greens, Markham Stouffville Hospital and the Viva Purple terminal on its doorstep, and a detached median closer to $1,278,000, with many townhomes under $1 million. Choose Unionville for character, established lots and a proven long-term address. Choose Cornell for a newer home, more space per dollar, and a community that is still growing.
A village founded in the 1790s, with a protected Main Street, Toogood Pond, and mature streets built mostly from the 1960s to the 1990s, plus the Downtown Markham condo district to the south.
A New Urbanist community designed in 1994 and built from 1997, with rear-lane garages, front porches, coach houses, parks on every few blocks, and the hospital inside its boundaries.
At a Glance
Unionville and Cornell, Side by Side
The numbers below come from TRREB's quarterly community report for April to June 2026, the most recent official community-level data. Small communities produce small samples, so read prices as a range, not a quote.
| Factor | Unionville | Cornell | Edge |
|---|---|---|---|
| Detached price, Q2 2026Cornell | Average $1,713,000 Median $1,625,000 45 sales |
Average $1,255,000 Median $1,278,000 16 sales |
Cornell |
| Detached days on marketEven | 25 days, 98% of list | 27 days, 99% of list | Even |
| All home types, Q2 2026 | 159 sales, median $735,000 (pulled down by Downtown Markham condos) | 74 sales, median $947,500 | |
| When built | Village from the 1790s; most streets 1960s to 1990s; condos from 2005 | From 1997; still adding homes and towers | |
| Typical homes | Detached on established lots, heritage homes, Downtown Markham condos | Rear-lane towns, semis and detached; many coach houses | |
| GO trainUnionville | Unionville GO, Stouffville line, inside the area | Mount Joy GO, a short drive north | Unionville |
| Rapid transitEven | Viva Purple stations along Highway 7 | Cornell Terminal: Viva Purple, YRT and GO buses | Even |
| HospitalCornell | About a 15 minute drive | Markham Stouffville Hospital inside the community | Cornell |
| Main streetUnionville | Main Street Unionville, Varley Art Gallery, Toogood Pond | Cornell Centre, village greens, Oakmoor Pond | Unionville |
| Change ahead | Heritage Conservation District protects Main Street | Thousands of high-rise units proposed near Cornell Centre |
Source: TRREB Market Watch community report, Markham, Q2 2026 (April to June). The "Edge" column is Michael John Lau's read of which community is stronger on that factor for most buyers; your priorities may differ.
Prices
What a Home Costs in Each
Detached figures are from TRREB's Q2 2026 community report. Other home types sell in small numbers each month, so they are shown as September 2026 medians with the number of sales behind them.
| Home type | Unionville | Cornell | Note |
|---|---|---|---|
| Detached | Median $1,625,000 (Q2) Sept 2026 median $1,600,800 |
Median $1,278,000 (Q2) Sept 2026 median $1,370,000 |
Cornell's September figure is one sale |
| Semi-detached | About $1,180,000 (1 sale) | About $940,000 (4 sales) | Few semis in Unionville |
| Townhouse | About $1,000,000 (1 sale) | About $895,000 (4 sales) | Cornell has far more choice |
| Condo apartment | About $650,000 (16 sales) | About $620,000 (1 sale) | Unionville includes Downtown Markham towers |
Sources: TRREB community report Q2 2026; Wahi neighbourhood data, September 2026 medians. Medians on one to four sales can swing widely month to month.
Compared like for like, a detached home in Unionville cost roughly $350,000 more than one in Cornell in the second quarter of 2026, using medians. That gap is the price of an established address: larger, older lots, mature trees, and a walk to Main Street.
Here is what that looks like in practice. In Unionville, about $1.6 million recently bought a 4+1 bedroom detached home of roughly 2,900 square feet that still needed updating. In Cornell, $1.25 to $1.4 million typically buys a detached home built after 2000, often with a rear garage and sometimes a coach house above it.
Neither number is the full story. Inside each community, the street, the lot and the condition of the home move the price more than the name on the map. That is why Michael John Lau prices every home from the recent sales on its own street, not the community average.
TRREB's "Unionville" community includes the Downtown Markham condo towers south of Highway 7. That is why its all-types median in Q2 2026 was only $735,000, below Cornell's $947,500. Anyone comparing the two areas on the headline number will draw the wrong conclusion.
Compare detached to detached and the picture flips. Unionville's September 2026 detached median was $1,600,800, the same figure Michael's sellers achieved at 56 Ingleborough Court, which drew six offers and sold $200,801 over asking.
The Deeper Comparison
How Daily Life Differs
Price is only one line. These are the differences that shape a normal week in each community.
Housing stock and lots
Mostly detached homes from the 1960s to the 1990s on established lots, heritage homes along and near Main Street, and condo towers in Downtown Markham. Many older homes are candidates for renovation, which is where value is often created.
Designed for walking: homes face the street with porches, and garages sit on rear lanes. You will find freehold and condo towns, semis, detached homes on narrower lots, and coach houses (small suites above the garage) on many streets.
Unionville rewards buyers who want land and character and are comfortable with an older home. Cornell rewards buyers who want newer construction and less maintenance.
Commute and transit
Unionville GO on the Stouffville line, about 40 minutes to Union Station, with off-peak trains between Mount Joy and Union. Viva Purple runs along Highway 7, and Highways 404 and 407 are minutes away.
Cornell Terminal (opened 2022) is the eastern end of Viva Purple, with YRT routes and GO buses. Mount Joy GO is a short drive north. Highway 407 and Highway 7 border the community.
Downtown train commuters lean Unionville. Drivers heading east, or anyone who values the hospital and bus terminal close by, lean Cornell.
Walkability and daily life
Main Street Unionville is the draw: restaurants, the Varley Art Gallery, Stiver Mill's farmers' market, the Unionville Festival each June, and the trails around Toogood Pond. CF Markville and Downtown Markham are close.
Cornell was built so daily errands could be walked: parks every few blocks, Cornell Community Centre and Library with a pool, gym and running track, and Cornell Centre shops along Highway 7. Rouge National Urban Park is nearby.
Unionville has the destination main street. Cornell has more everyday walkability inside the neighbourhood itself.
Schools nearby (names only)
Unionville High School (with the audition-based Arts Unionville program), Markville Secondary, Bill Crothers Secondary, Pierre Elliott Trudeau High School, and St. Augustine Catholic High School. Elementary: Unionville PS, William Berczy PS, Parkview PS and St. Matthew CES.
Bill Hogarth Secondary School (opened 2017, English and French immersion) and St. Brother André Catholic High School. Elementary: Cornell Village PS, Little Rouge PS, Black Walnut PS, Rouge Park PS and St. Joseph CES.
Both have schools inside or beside the community. Boundaries change, so confirm the schools for any specific address before you buy.
What changes over the next ten years
The Unionville Heritage Conservation District, in effect since 1998 and covering about 210 properties, limits change on Main Street. Growth happens mostly in Downtown Markham to the south.
Cornell Centre is the next chapter. Several high-rise proposals near Highway 7, Bur Oak and Ninth Line add up to thousands of new units, bringing more shops and services along with more traffic.
Unionville offers stability. Cornell offers growth. Both can be the right call depending on how long you plan to stay.
Which One Fits You?
Choose Unionville or Cornell
There is no better community, only a better fit. These are the patterns Michael sees most often when families decide between the two.
Choose Unionville if
Character, land and a proven address
- You want an established street with mature trees and a larger lot
- Walking to Main Street and Toogood Pond matters to you
- You commute downtown by GO train
- You are comfortable renovating an older home to add value
- You plan to hold for the long term in a protected heritage setting
Choose Cornell if
Newer homes and more space per dollar
- You want a newer home with less maintenance
- Your detached budget is closer to $1.3 million than $1.6 million
- You like front porches, rear lanes and parks within a few blocks
- Having the hospital and a transit terminal nearby matters to you
- A coach house for family or rental income is appealing (confirm permits for any suite)
Quick fit check
Five questions, about thirty seconds. Pick the answer closest to how you live.
1. What does your detached budget look like?
2. How do you get downtown most days?
3. Which home sounds better?
4. Your ideal Saturday morning?
5. How do you feel about change around you?
Local Results
Michael John Lau in Unionville and Cornell
Recent sales and listings on both sides of this comparison. Each one was priced from street-level data, not a community average.
“Michael and his team went above and beyond throughout our sale. Their communication was excellent and their local knowledge of Unionville gave us real confidence. We couldn't have asked for a smoother experience.”
Unionville vs Cornell: Your Questions
Both work well for families, in different ways. Unionville offers established streets, larger lots, Main Street and Toogood Pond, and well-known secondary schools such as Unionville High School with its Arts Unionville program. Cornell offers newer homes, parks every few blocks, Cornell Community Centre and Library, Bill Hogarth Secondary School, and Markham Stouffville Hospital inside the community. The better choice depends on budget, commute and whether you prefer an older home on more land or a newer home with less upkeep.
In TRREB's Q2 2026 community data, Unionville's detached median was $1,625,000 across 45 sales, and Cornell's was $1,278,000 across 16 sales, a gap of roughly $350,000. Averages were $1,713,000 and $1,255,000. Individual streets vary widely, so compare recent sales on the exact streets you are considering.
TRREB's Unionville community includes the Downtown Markham condo towers south of Highway 7. Those condo sales pull the all-types median down to about $735,000 in Q2 2026, below Cornell's $947,500. Comparing detached homes only shows Unionville is the more expensive community.
Unionville has its own GO station on the Stouffville line, about 40 minutes to Union Station, with off-peak service. Cornell relies on Mount Joy GO, a short drive north, plus Cornell Terminal, the eastern end of Viva Purple with YRT routes and GO buses. Train commuters usually prefer Unionville.
It is a protected district of about 210 properties around Main Street Unionville, in effect since January 1998. Exterior changes, additions and demolitions within it need heritage approval from the City of Markham. It keeps the village character intact, and buyers planning renovations should check the rules before they buy.
Many Cornell homes have their garage at the back, reached by a lane, so the front of the house has a porch facing the street. Some lots have a coach house, a small suite above the rear garage, which can house family or, where permitted, a tenant. Confirm the permit and zoning status of any suite with the City of Markham before you count on rental income.
Yes. Most low-rise streets are complete, but Cornell Centre near Highway 7, Bur Oak Avenue and Ninth Line has several high-rise proposals that together add thousands of homes. That growth should bring more shops and services and also more traffic, so it is worth looking at what is planned near any street you consider.
Over long periods both have been sought after. Unionville benefits from scarcity: a protected heritage core and a limited supply of established lots. Cornell benefits from newer homes, the hospital, transit and growth around Cornell Centre. Michael John Lau's view is to buy the street, not the name: the right street in either community tends to hold value better than the wrong street in the other.
Keep Comparing
More Markham Comparisons
Neighbourhood pages, home values, and the other side-by-side guides.
Street-Level Advice · No Obligation
Still Deciding Between Both?
Tell Michael your budget, commute and must-haves, and he will show you the streets in Unionville and Cornell that fit, with the recent sales behind each one. If you are selling in one to buy in the other, he will map both sides of the move.
Call (416) 700-0286Email info@callmikelau.com
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Michael John Lau is a licensed REALTOR® with eXp Realty (Licence #4784577) serving buyers and sellers in Markham and York Region, Ontario. Prices are from TRREB community data for Q2 2026 and Wahi neighbourhood data for September 2026, and change monthly. School boundaries change; confirm the schools for any address with the YRDSB and YCDSB school locators. This page is general information, not legal, tax, or financial advice.