I’ve been watching construction spending data for years, and March 2026 delivered stronger-than-expected numbers. Total construction spending hit $2,185.5 billion on a seasonally adjusted annual rate—a 0.6% jump from February, triple what economists predicted. The growth isn’t distributed evenly. One sector is carrying the weight while others struggle to maintain momentum.
Residential Construction: The Only Growth Engine
Private residential construction jumped 1.7% in March, reaching $929.7 billion. That’s the strongest performance across all construction categories, and it marks the first increase since December after three consecutive months of decline.
The driver? Single-family construction climbed 2.7%, with multi-family projects adding 0.3%. Homebuilders are moving forward while other sectors hesitate.
The National Association of Home Builders forecasts single-family starts to increase 1.0% in 2026 to 940,000 units. Existing home inventory has risen from a 2.3-months’ supply in 2021 to a projected 4.6-months’ pace in 2026, signaling the market is shifting toward balance after years of extreme tightness.
The median listing price of an existing home was $399,900 in January 2026, down 0.1% year-over-year. Small movement, but it suggests the relentless price escalation may be stabilizing.
Nonresidential Construction Shows Selective Weakness
While residential construction climbs, nonresidential structures contracted 0.2% in March. The composition reveals deeper concerns.
Manufacturing construction fell 1.2%, commercial dropped 0.6%, and lodging declined 0.5%. Year-over-year, manufacturing construction tumbled 15.0%—a significant retreat that reflects business caution about expansion.
According to the Associated General Contractors of America’s chief economist, “Rising construction costs and uncertainty over the impact of tariffs, war in the Middle East, and a slowing economy are leading to slowdowns and cancellations of many project types.”
Businesses are making calculated decisions to delay or cancel projects because the risk-reward equation doesn’t work.
The One Bright Spot in Nonresidential: Data Centers
Data center construction leaped 31.3% year-over-year in early 2026. Industry experts note that growth exceeding 40% makes it “the buzzword of the day” with no signs of slowing.
Megaprojects totaled $134 billion through September 2025, a 47% increase over 2024. This sector is absorbing significant construction capacity while most other nonresidential categories contract or stagnate.
The divergence is striking. Data centers represent infrastructure for the digital economy—cloud computing, AI, and data processing. Meanwhile, traditional manufacturing and commercial construction pull back.
Public Construction Spending Declined Marginally
Public construction spending fell 0.2% to $526.4 billion in March. Educational construction dropped 0.6% to $113.0 billion, and highway construction declined 0.1% to $147.8 billion.
These decreases are small enough to fall within margins of error, but the direction matters. Public infrastructure spending isn’t accelerating despite ongoing discussions about infrastructure needs and federal programs.
State and local governments face budget constraints. Federal funding may be available, but moving money into actual construction takes time. The gap between policy announcements and dirt moving remains wide.
Interest Rates and Project Confidence
The Federal Reserve maintained the federal funds rate at the 3.5%-3.75% target range through March 2026, with policymakers signaling one reduction this year.
Contractors report that “since the first cut in September, we have seen a slow but steady return of confidence,” with projects that were sitting on the edge now starting to move, particularly those with design and financing mostly in place.
Rate cuts don’t immediately trigger new projects. They give confidence to projects already in development—the ones where stakeholders were waiting to see if borrowing costs would improve.
The projects moving forward now were likely conceived months or years ago. New projects starting from scratch today won’t show up in spending data for another 12-18 months.
What the Spending Pattern Reveals About Economic Priorities
The divergence between robust residential construction and weaker public and nonresidential construction shows where resources are flowing.
Housing remains a priority because demand persists. Household formation, demographic shifts, and years of underbuilding created a structural deficit that still needs addressing.
Commercial and industrial construction pulls back because businesses are uncertain about future demand. If you’re not confident about sales growth, you don’t expand facilities. If remote work reduces office needs, you don’t build new office space.
Public construction stagnates because government budgets are constrained and political consensus on infrastructure priorities remains elusive.
The Sustainability Question
Residential construction is carrying the construction sector right now. That concentration creates vulnerability.
If housing demand weakens—due to affordability challenges, job market softness, or demographic shifts—the sector’s primary growth driver could erode quickly. Year-over-year growth of 1.6% in total construction spending remains modest, suggesting the recent acceleration may represent a cyclical upturn rather than a fundamental shift.
The construction industry needs multiple sectors performing well to sustain growth. Right now, it doesn’t have that balance.
Where to Focus Your Resources
Residential construction: The market supports continued activity. Single-family projects offer the most momentum, with multi-family showing modest but positive movement.
Commercial and industrial construction: Expect continued selectivity from clients. Projects will move forward, but decision timelines will be longer and approval processes more rigorous. Data center work offers opportunities if you can access that market.
Public construction: Budget constraints and political dynamics will continue affecting project timing and scope. Federal funding is available, but converting that into active projects takes patience and persistence.
The Broader Economic Context
Construction spending that exceeds expectations by this margin—0.6% actual versus 0.2% forecast—suggests the economy is more resilient than many anticipated. This will influence Federal Reserve policy decisions about future rate adjustments.
If construction activity proves stronger than forecasted, it contributes to overall economic growth exceeding projections. That will delay further rate cuts or change the pace of monetary policy adjustments.
For construction professionals, financing conditions will remain relatively stable in the near term. Don’t expect dramatic improvements. The environment we have now is the environment we’ll work in for the next several quarters.
The Bottom Line
March’s construction spending data shows an industry with one dominant growth driver and multiple weak spots. Residential construction is doing the heavy lifting while nonresidential and public construction lag.
This concentration creates risk. If housing demand weakens, the entire construction sector loses its primary engine. If nonresidential recovers, the sector gains stability.
I’ll be watching whether this imbalance persists or corrects. The next few months will show whether residential can maintain momentum and whether nonresidential finds a floor.
For now, the data is clear: residential offers opportunity, nonresidential demands caution, and public construction requires patience. Allocate your resources accordingly.
