Southern Ontario Housing Starts Plunge: What It Means for Buyers and Sellers | Modern Solution Realty

Southern Ontario Housing Starts Plunge: What It Means for Buyers and Sellers

Housing starts across much of southern Ontario have slowed sharply in 2025, raising concerns for builders, trades, and homebuyers alike. In this environment, having expert guidance from a local brokerage such as Modern Solution Realty (905-897-5000, https://modernsolution.ca/) is more important than ever when planning a purchase, sale, or investment.

Housing starts falling sharply

A new report from the University of Ottawa’s Missing Middle Initiative, prepared for the Residential Construction Council of Ontario, finds that housing starts in the Greater Toronto Area and the wider Greater Golden Horseshoe dropped by more than one‑third in the first nine months of 2025 compared with the same January–September period from 2021 to 2024. The analysis covers 34 municipalities across the region and shows a broad-based slowdown in new home construction.

Within that decline, condo apartment starts fell by about 51 per cent over the first three quarters of 2025, while ground‑oriented homes such as singles, semis, and townhouses were down roughly 43 per cent. The one bright spot was purpose‑built rental housing, where starts were about 42 per cent higher than the average of the previous four years.

Industry warnings and job impacts

Richard Lyall, president of the Residential Construction Council of Ontario, described the findings as evidence that “the new home market has tanked,” warning that the industry is “staring into the abyss.” According to the report, weaker housing starts have already led to significant project cancellations and layoffs across the residential construction sector, with ripple effects on suppliers and related trades.

Using standard labour-intensity estimates—about 3.8 person‑years of work to build a single‑detached home and 1.5 person‑years for an apartment—the study calculates that the drop in construction over the first nine months of 2025 amounts to roughly 35,000 fewer person‑years of employment than in the same period of the previous three years. Economist Mike Moffatt, who leads the Missing Middle Initiative, notes that the negative employment trend shows how closely local jobs are tied to housing activity.

Affordability pressures in the GTA

The pullback in building is occurring even as affordability remains a major obstacle for would‑be buyers in the GTA. The average selling price in October 2025 sat just over the $1.05 million mark, underscoring how far prices remain from many households’ budgets. With fewer new homes coming to market, there is a risk that supply will fall further behind demand once interest rates ease or buyer confidence improves.

For people trying to make sense of these conditions—whether to time a purchase, decide between pre‑construction and resale, or structure an investment—Modern Solution Realty can help interpret local trends and tailor strategies to your budget and goals. Their team can be reached at 905-897-5000 or via https://modernsolution.ca/.

Municipal performance and grading

The University of Ottawa report draws on data from Canada Mortgage and Housing Corporation and Altus Group to benchmark each municipality in the Greater Golden Horseshoe. Communities were graded across five categories related to housing starts and sales performance. Half of the municipalities received a failing grade, another nine scored a D, and only eight earned a C or better, highlighting how widespread the slowdown has become.

These weak grades suggest that planning approvals, market conditions, and financing challenges are together limiting the region’s ability to deliver enough new homes, particularly “missing middle” options like townhomes and low‑rise multiplexes that many families are seeking.

National context and federal targets

National data underline how far Canada still is from its own supply goals. The federal government has committed to spending tens of billions of dollars over the next five years to accelerate homebuilding and has signalled that roughly 430,000 to 480,000 new homes per year are needed through the next decade to restore affordability to around 2019 levels. That would mean roughly doubling the current construction pace.

Yet in October 2025, the annualized national rate of housing starts fell about 17 per cent from September, largely because of declines in Ontario and British Columbia. In centres with populations over 10,000, actual starts were down around 3 per cent year‑over‑year for the month, although the year‑to‑date total was modestly higher than in 2024. This pattern—slightly higher total volume but recent monthly softness—suggests ongoing volatility rather than a stable upward trend in building.

Why local guidance from Modern Solution Realty matters

For buyers, sellers, and investors, the combination of high prices, fewer new projects, and shifting government policies makes the southern Ontario market complex to navigate. Pre‑construction projects may face delays, resale inventory can tighten suddenly, and neighbourhoods can behave very differently even within the same municipality.

Modern Solution Realty provides on‑the‑ground insight into these dynamics, helping clients:

  • Evaluate whether pre‑construction, resale, or purpose‑built rentals best fit their needs.
  • Understand how slowing housing starts in specific municipalities may affect future supply and price growth.
  • Strategically time purchases or sales based on local absorption, inventory, and new‑build pipelines.

To discuss your options or get tailored advice for your situation in today’s challenging market, contact Modern Solution Realty at 905-897-5000 or visit https://modernsolution.ca/.