The Condo Bar Real Estate

Mountainside Market Report

Q3 2026 · 32 sold · average sold $747.6K

Source: TRREB/PropTx MLS® data · Updated quarterly · Last updated October 13, 2026 · Next update ~November 8, 2026

Across Q3 2026, 32 homes sold in Mountainside at an average price of $747.6K. They sold for 97% of asking on average and took about 33 days to sell. As of October 13, 2026, 13 were for sale at a median asking price of $889K, and with 1.2 months of inventory it was a balanced market. Figures come from TRREB/PropTx MLS® data and update quarterly.

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  • Median sold price, and the change from a year ago
  • How many sold that month
  • Whether buyers or sellers have the upper hand

Explore by neighbourhood

Burlington pricing and inventory vary by neighbourhood — pick one below for a closer look.

Mountainside, Burlington — current market data

As of October 2026, Mountainside, Burlington has 7 active detached homes for sale with a median list price of $899.0K, averaging 29 days on market. Inventory is low at 1.2 months of inventory, but homes are selling under their first asking price and prices aren't rising, so this is currently a balanced market.

Balanced market

1.2 months of inventory

Supply is low, but homes are selling under their first asking price and prices aren’t rising.

How we call the market

Inventory is low at 1.2 months of inventory, but homes are selling under their first asking price and prices aren't rising, so this is currently a balanced market. From July to September 2026, 17 detached homes sold, 5 sellers took their home off the market without relisting and 4 came back at a lower price — a 77% sell-through. Over July to September 2026, homes sold for a median 95.0% of their first asking price, and the median sold price per square foot was down 15.1% from the same months a year earlier.

What we measure, over the last three full months

  • Months of inventory: homes for sale today, divided by the average number sold per month. Fewer months means less choice for buyers.
  • Sell-through: of the sellers whose listing ended, the share who actually sold. A seller who takes their home off the market and doesn’t list it again within 60 days counts as not selling. A home that comes off and goes back on (often a day later, at a lower price) counts as a price cut, not a seller giving up.
  • Sold vs. first asking price: what homes sold for, compared with the price they were first listed at. We follow a home back through any relists, because a relist starts a new MLS® listing and hides the earlier, higher price.
  • Price trend: the median sold price per square foot, compared with the same three months a year earlier.

How the call is made

  • Seller’s market: under 3 months of inventory, at least 70% sell-through, and homes selling for 98% or more of their first asking price or prices up from a year ago.
  • Buyer’s market: over 6 months of inventory, or under 50% sell-through (more sellers giving up than selling).
  • Balanced market: everything in between, including low inventory where sellers are cutting prices, relisting or pulling their homes.

Based on MLS® listings from TRREB. Area totals only. We don’t show a call when fewer than 10 homes sold in those three months. Relists are matched by address, so a home relisted under a differently written address counts as taken off the market. Private sales and listings not on MLS® aren’t included. This is a general guide to the area, not an appraisal or advice about a specific home.

Based on properties for sale & sold — rentals not included. Figures are a monthly rollup covering October 1–15, 2026 (month to date), refreshed with each MLS® sync — shown as of October 15, 2026.

Property Type

Bedrooms

Active Listings

7

Number of homes currently for sale in this area.

Median List Price

$899K

The middle asking price among active listings -- half are listed higher, half lower.

Median $ / Sqft

$692

Median list price divided by square footage, for comparing across different unit sizes.

Avg. Days on Market

29

Average number of days active listings have been on the market.

Mountainside, Burlington market statistics, current as of October 15, 2026
MetricCurrent
Active listings7
Median asking price$899K
Average days on market29
Months of inventory1.2 mo
Sales in October 2026 (month to date)4
Sale-to-list ratio98%
YoY median sold-price change+12.2%

Price trend

Median asking price against median sold price, by month.

YoY Median Sold-Price Change

+12.2%

Median sold price this period compared to the same month last year.

Median List Price
Median Sold Price
$812.3K$862.8K$913.3K$963.7K$1MOct '25Nov '25Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26Aug '26Sep '26Oct '26$899K$987.5K

What actually sold

5 detached homes sold in Mountainside, Burlington in September 2026 at a median of $970.0K. Sales closed at an average of 92% of asking price.

Closed sales — the figures above describe homes still on the market.

Median Sold Price

$987.5K

The middle sold price among closed sales this period -- half sold for more, half for less.

Sold $ / Sqft

$885

Median sold price divided by square footage, for comparing across different unit sizes.

Months of Inventory

1.2 mo

How long it would take to sell all current listings at the recent sales pace. Lower favors sellers, higher favors buyers.

Sales-to-New Ratio

133%

Homes sold this period as a share of new listings -- a higher ratio signals stronger demand.

Sale-to-List Ratio

98%

Average sold price as a percentage of asking price. Above 100% means homes are selling over asking.

Based on a small number of sales (4) — figures may not reflect the broader market.

Free account. Sold prices are for registered members.

4 sold in October 2026 (month to date) · median $987.5K · 98% of asking (based on a small number of sales — 4)

See the address, photos and exact sale price for every recent transaction, free with a registered account.

Buildings in Mountainside

Live snapshot, current as of this page load.

BuildingActiveMedian AskAvg. DOMSold (24mo)Median Sold$/sqftSale:List
Mod'rn Condominium0——14$428K$68195%

Q3 2026 sales

32 homes sold in Mountainside across Q3 2026 at an average sold price of $747.6K ($627/sqft). Homes sold at an average of 97% of asking and took an average of about 33 days to sell.

Q32026Detached homes17 · 61%Condo townhouses5 · 18%Condo apartments6 · 21%
Q3 2026 closed sales by property type in Mountainside.
Detached homes$907.2KCondo townhouses$599.8KCondo apartments$431.5K
Average sold price by property type, Q3 2026.

Property type × bedrooms (Q3 2026)

Property type1-bed2-bed3-bed4+ bed
Detached homes——2 sold$1,000,000*
Freehold townhouses———1 sold
Condo townhouses——2 sold—

*Based on a small number of sales — figures may not reflect the broader market.

Current inventoryOctober 2026 · compiled October 13, 2026

As of October 2026 (compiled October 13, 2026), there are 13 home listings for sale in Mountainside with a median asking price of $889K ($636/sqft), averaging around 34 days on market.

By property type

Property typeActive nowMedian listSold (Q3)Avg sold
Detached homes8$919,00017$907,176
Condo townhouses3—5$599,800*
Condo apartments0—6$431,501*

*Based on a small number of sales — figures may not reflect the broader market.

For Sellers

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Market velocity

With 1.2 months of inventory as of October 13, 2026, Mountainside's real estate market was a balanced market. From July to September 2026, 32 homes sold, 8 sellers took their home off the market without relisting and 6 came back at a lower price — a 80% sell-through. There aren't many homes for sale, but homes are selling under their first asking price and prices aren't rising, so buyers still have room to negotiate.

What this means for buyers and sellers

For buyers

There are only 1.2 months of inventory (as of October 13, 2026), so choice is limited, but homes are selling under their first asking price and prices aren't rising — you can still negotiate rather than chase a bidding war. Homes are selling for about 97% of asking on average, which leaves room to negotiate off the list price on most listings. Recent sales took a median of about 33 days to close, so that's roughly how long a realistically priced unit tends to stay available once it hits the market.

For sellers

At 1.2 months of inventory you face little competition from other sellers, but buyers are paying under the first asking price, so price to recent sales rather than to last year's peak. Median sold prices are up 7.5% year over year, which supports a confident asking price.

Sales figures cover closed transactions across Q3 2026; inventory is a live snapshot as of October 2026. Quarterly figures are count-weighted averages. Compiled from TRREB/PropTx MLS® data for homes in Mountainside. Deemed reliable but not guaranteed.

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About the Mountainside, Burlington market

Burlington ranks among Canada’s best places to live, wedged between the lake and the Niagara Escarpment with GO, QEW, and 407 access. Mountainside is one of Burlington’s active real estate submarkets, with enough sales volume each month to support a dedicated, data-grounded report rather than being folded into the city-wide figures.

The figures below track Mountainside specifically, across every property type — use the filter above to narrow to a segment.

Methodology

Figures on this page are compiled from TRREB/PropTx MLS® data via the site’s IDX (active listings) and VOW (closed sales) data feeds for Mountainside, Burlington, refreshed on every data sync.

  • Median is the middle value in a sorted list of prices — half of transactions are above it, half below. It is used instead of an average because a single very high or very low sale can’t skew it.
  • $/sqft is the sold or asking price divided by the unit’s square footage, as reported on the listing.
  • Days on Market (DOM) is the number of days between a listing going live and it selling (or, for active listings, the number of days it has been live so far).
  • Sale-to-List Ratio is the sold price as a percentage of the final asking price. Above 100% means the home sold over asking.
  • Months of Inventory is how long the current active listings would take to sell through at the recent sales pace.
  • Sample-size policy: sold-price figures are only published once at least 3 sold sales support them, to avoid identifying any single transaction. A figure based on fewer than 10 sales is labeled as a small sample.

Frequently asked questions

What did homes sell for in Mountainside in Q3 2026?

Across Q3 2026, homes in Mountainside sold at an average price of $747,606 (about $627/sqft), an average of 97% of asking. The breakdown above shows how this varies by property type.

How many homes sold in Mountainside across Q3 2026?

32 homes closed in Mountainside across Q3 2026. The chart above breaks the total down by property type.

Which property type is most affordable in Mountainside?

Across Q3 2026, condo apartments had the lowest average sold price in Mountainside at $431,501, while detached homes were the highest at $907,176. The table above lists each in full.

Is Mountainside a buyer’s or seller’s market for homes?

With 1.2 months of inventory as of October 13, 2026, the Mountainside real estate market was a balanced market. From July to September 2026, 32 homes sold, 8 sellers took their home off the market without relisting and 6 came back at a lower price — a 80% sell-through. Supply was low, but homes were selling under their first asking price and prices weren’t rising, so it doesn’t count as a seller’s market. We call it a seller’s market when there are under three months of inventory, at least 70% of sellers who leave the market actually sell, and homes sell at 98% or more of their first asking price or prices are up from a year ago. It’s a buyer’s market above six months of inventory, or when fewer than half of sellers who leave the market sell. Everything else is balanced. The live figures at the top of this page update with every MLS® sync.

How many homes are for sale in Mountainside?

As of October 13, 2026 there were 13 active home listings in Mountainside, at a median asking price of $889,000. The live count at the top of this page updates with every MLS® sync.

How often is this report updated, and where does the data come from?

It is refreshed quarterly for the previous complete quarter, from TRREB/PropTx MLS® data; inventory figures update live with each MLS® sync. Deemed reliable but not guaranteed. Quarterly figures are count-weighted averages, used because this market closes too few monthly sales for a reliable monthly median.

Miko Nalepa

Miko Nalepa

Realtor® at The Condo Bar Real Estate · RECO #4737024

With 15+ years in real estate and a GTA West focus since 2016, Miko Nalepa is a Realtor® with Right At Home Realty, Brokerage, specializing in condos, townhouses, and detached homes across Mississauga, Oakville, Burlington, and Milton. The focus stays deliberately narrow -- four cities, not a Toronto-wide practice -- because that's what it takes to know individual buildings and blocks, not just neighbourhood names.

Miko Nalepa is also the creator of The Condo Bar, the data platform behind this site, tracking building-level sales history and live market reports across 450+ GTA West condo buildings so every recommendation starts with what comparable units actually closed for, not asking price.

Aggregate estimates from TRREB MLS® data (PropTx feed). Deemed reliable but not guaranteed, and not an appraisal. Full terms.