Nearly half of all active construction work is behind schedule in a typical week. Almost three-quarters of activities miss their planned start date. Typical construction activity finishes 5.3 weeks late.
These insights are drawn from Buildots Intelligence Labs’ first detailed report, which lays bare the industry’s project planning and productivity issues.
The 47-page report draws on project performance reporting from more than 250 projects. The seven headline statistical insights make for grim, but not necessarily surprising, reading:
- In a typical week, construction sites keep just 52.8% of activities running on schedule. Even at top-quartile projects, only 63.1% of activities remain on schedule, while for bottom-quartile projects the figure falls to 41.2%.
- 70.7% of construction activities miss their planned start date by more than a week, meaning less than a third of site activities actually start on time.
- On a typical project, delays add up to a median completion overrun of 5.3 weeks per activity. On bottom-quartile projects, typical activity concludes 11.2 weeks late, and even on top-quartile projects, activities are typically delivered 2.3 weeks late.
- A typical construction project delivers just 63% of its scheduled weekly output, leaving 37% of work volume undelivered. Top-quartile projects deliver 79.2% of their scheduled weekly output, while the bottom quartile only delivers 51.4%.
- Across 21 core construction activities measured in physical units – feet, square feet, and pieces installed per week – 20 had median weekly output below the rate their schedules called for.
- During peak performance periods, construction sites deliver 1.8 times more than their typical weekly output. Even bottom-quartile projects reach 1.6 times their typical weekly pace during their best periods, while top-quartile projects reach 2.2 times.
- Drywall work sticks to project schedules better than any other measured trade (62.2% schedule adherence).
Accept the data, change your fate
While the report necessarily shines a light on construction performance, it also raises questions for project teams. For example, the insight about peak performance periods provokes this question: “What prevents projects from sustaining the higher output that they have already demonstrated is possible? And what can site leaders do to unlock more high-performing weeks?”
The report quotes SES Engineering South interim regional managing director Mark Tant: “These data and insights are so powerful. The challenge is accepting the reality. The general contracting industry has a complete blind spot to productivity to the extent that it settles for a 60% productive environment. This data lifts the lid. Good performance is 79.2% – only losing a day a week.
“It is still not a cause for celebration. I strongly believe that measuring the pace of construction and converting it into predicted outcomes will eventually change behaviours. We just need to move from denial to acceptance! Accept the data and put in the effort to change your destiny.”
A measurable gap, not an isolated problem
Amir Berman, Intelligence Lab lead and vice-president of industry transformation at Buildots, said: “Taken individually, these benchmarks describe different issues: late starts, underproduction, unrealistic targets, and uneven trade performance. Taken together, they point to something broader: construction doesn’t have an isolated performance problem. It has a measurable gap between what projects plan to deliver, what they actually deliver, and what they’ve shown they can achieve under peak conditions.
“That gap isn’t fixed. The same projects that fall short of plan also demonstrate, in their own data, that better performance is possible. The strongest projects hold a higher schedule adherence than the weakest. The same activities that typically lag can run far faster in their best weeks. Performance varies, sometimes sharply, and for the first time the industry has a way to measure where and when.
“That changes the questions project leaders can ask. Instead of waiting for a missed milestone to reveal a problem, teams can now see where performance is diverging from plan while there’s still time to act. And the industry can move from asking ‘why did we fall behind?’ to asking ‘what’s happening on the projects that perform better?’”
