Preconstruction isn’t just work that happens before construction. It’s when cost, schedule, logistics and procurement assumptions can still be tested before they become field problems.
Originally published February 2023. Updated September 2026 to reflect current owner-side project delivery practices.
One of the biggest differences an owner may encounter when considering a Construction Manager (CM) and a General Contractor (GC) is when the construction team becomes involved.
That matters because some of the most valuable construction decisions happen before anyone mobilizes to the site.
The question I would ask is:
“What do we need the construction team to help us understand before the design is finished?”
What Is Preconstruction?
Preconstruction can include services such as:
- estimating and budgeting;
- schedule development;
- constructability review;
- site logistics and phasing;
- procurement planning;
- identification of long-lead materials and equipment;
- trade-market input; and
- coordination with the design team.
The exact services depend on the contract and the project.
A CM engaged during design commonly provides these services, but preconstruction capability is not exclusive to firms called Construction Managers. Some General Contractors also have substantial preconstruction capabilities.
The owner should evaluate the actual services and team being proposed, not assume capability from the title.
Early Estimating Has Limits
One of the major benefits of preconstruction is getting cost information while design decisions can still be changed.
But early estimates are based on early information.
At Schematic Design or Design Development, portions of the project may still rely on assumptions, allowances or historical pricing.
That doesn’t make the estimate unreliable.
It means the owner needs to understand what is known, what is assumed and what remains unresolved.
As the design advances, the estimate should become more defined.
Constructability Should Test the Design
Preconstruction also gives the construction team an opportunity to review how the project is intended to be built.
Can the work be sequenced as designed?
Is there adequate access?
Will the proposed systems fit?
Does the phasing work in an occupied facility?
Are details creating unnecessary construction difficulty?
Those questions are easier to address while the design is still developing than after construction begins.
But constructability review should not quietly redesign the project around contractor convenience.
The owner still needs to understand what is being changed and why.
Long-Lead Decisions May Need to Come Early
Equipment, electrical gear, mechanical systems, specialty materials and other components can have procurement periods that affect the entire project schedule.
Preconstruction can identify those risks early.
The next question is whether the owner is prepared to act on them.
Ordering equipment before the entire design is complete may protect the schedule, but it can also lock in decisions earlier than originally anticipated.
Early procurement requires early owner decisions.
Preconstruction Doesn’t Eliminate Risk
A strong preconstruction process should make risk more visible.
It won’t eliminate it.
The estimate can still change.
The design can still evolve.
Market conditions can move.
Field conditions can still create surprises.
The value is that the owner has more opportunity to see those issues developing and make informed decisions before construction limits the available options.
What Should the Owner Expect?
Before engaging a construction team for preconstruction, I would want the scope to answer:
What deliverables will we receive?
How often will estimates be updated?
Who develops and maintains the schedule?
Will constructability reviews be documented?
How will long-lead items be identified?
What procurement recommendations will be provided?
Who from the proposed team will actually perform the work?
Preconstruction should not simply be a fee on the proposal.
The owner should know what it is buying.
Leadership takeaway: The value of preconstruction isn’t the CM or GC label. It’s whether the owner gets useful cost, schedule, constructability and procurement information early enough to make better decisions.
Previous – Part 1 – Overview
Next – Part 3 – Contractor Qualifications
About the Author: Richard Neuman advises organizations on capital planning, project governance, and complex capital programs. He has overseen more than $2 billion in capital investments across commercial real estate, healthcare, utilities, industrial, broadcast, and development projects.
He writes candidly from an owner-side perspective about the executive decisions and organizational dynamics that shape capital project outcomes.
Leading a major capital program or facing a complex capital decision?
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