- RealEdge
- Posts
- Why Housing Supply Is Under Pressure: Construction Costs & Supply-Chain Strains in Ontario
Why Housing Supply Is Under Pressure: Construction Costs & Supply-Chain Strains in Ontario
Discover top Ontario investment markets beyond Toronto: Expert insights on price points, cash flow strategies, and emerging real estate opportunities in 2025's promising second-ring markets.
Dear Valued Subscriber
📌 In this issue you’ll get:
What’s driving construction cost increases and supply-chain disruptions
What recent data shows for Ontario and the GTA housing pipeline
The knock-on effects for supply, affordability, and home prices
What this means for buyers, sellers, and investors now
RealEdge takeaways & what to watch heading into 2026
Why construction & supply-chain pressures are building
Rising building costs — According to the latest national data, residential building construction costs rose 0.6% in the third quarter of 2025 (on top of earlier increases), bringing the year-over-year construction-cost jump to around 3.3% in major CMAs. Structural steel, metal fabrication and other key inputs appear to be some of the biggest contributors. Statistics Canada
Materials & tariffs pressures — Tariffs, rising metal prices, global supply-chain friction, and rising transport costs continue to push up material prices across Canada. Builders report longer lead times and increased expenses for essential materials such as steel and concrete. Mortgage Rates & Broker News
Labour and wage pressure — A shortage of skilled trades, combined with higher wages to attract labour, is pushing up the overall cost structure for new builds.
Developer caution & shifting priorities — Because rising costs squeeze profitability, many developers are scaling back or delaying projects — especially riskier ones such as high-rise condos. Some are pivoting toward rental projects or more modest scale ground-oriented housing instead. Canada Mortgage and Housing Corporation+2Storeys+2
What recent data shows: Ontario & GTA housing pipeline under stress
Nationwide, the latest housing-supply report shows housing starts in many of Canada’s largest CMAs held steady in early 2025 — but Ontario (including Toronto) saw one of the steepest slowdowns. Canada Mortgage and Housing Corporation
Specifically, Ontario saw a contraction in housing starts a drop of 38% from the previous year, according to a recent home-builder confidence index reflecting weakened momentum on new home construction. Canadian Home Builders' Association
Even though rental apartment and ground-oriented housing starts are holding up somewhat in other provinces, the slowdown in Ontario particularly in multi-unit developments (e.g. condos) suggests fewer new units will hit the market over the next 1–3 years. Canada Mortgage and Housing Corporation
This comes as demand remains elevated, especially in urban and suburban corridors. The gap between demand and new supply threatens to widen further.
What this means: Supply Crunch, Affordability Pressure & Price Support
Supply crunch ahead
With fewer starts, delayed projects, and cautious developer sentiment — especially in high-cost, labour/material-sensitive markets — fewer new homes are likely to be completed in Ontario/GTA over the next few years.
Because of this, even moderate demand could stretch supply tight. In markets where price growth already slowed, limited supply could prevent further declines — or even stabilize prices.
Affordability challenge persists
Higher construction costs get baked into final sale prices. That means new builds will likely remain expensive, pricing out many first-time and moderate-income buyers.
For rental stock: slower supply growth constrains new rental unit delivery which may keep rent and vacancy pressure elevated, making it harder for renters to find new, affordable units.
Support for value of existing homes
With new supply constrained, older and existing homes, especially well-located ones, may maintain or even increase value. Buyers/investors may shift focus from new-builds to resale and renovation opportunities.
What this means for You Buyers, Sellers & Investors
For Buyers:
Don’t count on a flood of affordable new housing hitting soon in Ontario/GTA. If you need to buy in the next 12–24 months, resale homes or ready-to-live properties may offer more realistic options than pre-construction/new-builds.
Be cautious about new-build premiums: with higher construction costs, new homes may come with high price tags — ensure you’re comfortable with long-term cost and value, not just short-term novelty.
For Sellers (especially in older or well-maintained homes):
You may be sitting on more value than you expect — limited new supply and rising component costs could help support or even increase resale values in the coming years.
Emphasize features that are attractive in a tight-supply market: proximity to transit, good upkeep, energy efficiency, and overall livability.
For Investors:
Rental demand may stay strong as supply of new units shrinks — existing rental properties could see stable or rising rents and lower vacancy rates.
“Value-add” plays — properties that can be upgraded, renovated, or repositioned — could outperform new-builds, particularly where cost inflation hits new developments hard.
Consider geographic diversification: markets outside the high-cost Ontario core (where construction pressure is extreme) might offer better risk/return balance.
RealEdge Takeaways What to Watch Next
Monitor housing-start data quarterly — a further slide in Ontario housing starts will reinforce the supply crunch narrative.
Watch material-cost indices — if building costs continue to rise, expect new-build prices to climb, tightening affordability even further.
Track rental vacancy & rent growth — rising demand + constrained new supply could tighten rental markets, which may drive returns for investors or put pressure on renters.
Target resale over new-build where possible — in a rising-cost environment, older homes in good condition may offer more stable value than new, more expensive builds.
Bottom line
Rising construction costs, shifting supply-chain dynamics, and a cautious development pipeline are quietly reshaping housing supply in Ontario and the GTA. This matters not just for builders but for home-buyers, sellers, and investors. Supply may be tighter than many expect, which could support resale values and rents, but make affordability and new-build access more challenging.
Stay tuned: in our next issue we’ll explore which Ontario suburbs and secondary markets are best positioned to benefit from these supply pressures while offering relative affordability.
The RealEdge Team
See you next week

