What Preconstruction Services Cover
- Conceptual and schematic cost estimating based on early design drawings
- Constructability review of the architect's design before it is finalized
- Scheduling, including identification of long-lead items that need to be ordered early
- Permit and code review to flag jurisdictional requirements before construction documents are complete
- Value engineering discussions to align scope with budget
- Subcontractor and trade partner selection or prequalification
When to Bring a Contractor Into Preconstruction
The earlier a contractor is involved, the more the preconstruction phase can influence cost and schedule. Owners using a design-bid-build approach typically do not engage a contractor until design is complete, which limits how much a contractor can affect the plan. Owners who want more input during design use a design-build or construction manager at risk delivery method, bringing the contractor in alongside the architect from early schematic design. For a tenant improvement or retail build-out, this often means involving the contractor before the lease is finalized so site conditions and code issues can inform the deal terms.
Who Typically Performs Preconstruction Work
On larger projects, a dedicated preconstruction manager or estimator on the general contractor's team leads this phase, working alongside the architect and any specialty consultants such as a structural or mechanical engineer. On smaller commercial projects, the same project manager who will run construction often handles preconstruction directly, without a separate preconstruction team. An owner should ask which structure applies before assuming a dedicated preconstruction group will be involved.
What a Weak Preconstruction Phase Costs Later
- Change orders during construction to correct constructability problems that a review would have caught earlier
- Schedule delays from equipment or materials that were not identified as long-lead items in time
- Permit delays from code issues discovered after construction documents were already submitted
- Budget overruns from cost estimates based on incomplete design information
How Preconstruction Fees Are Typically Structured
Preconstruction fees vary by delivery method and project size, and no single flat rate applies across the industry. Some contractors fold preconstruction cost into their overall fee on a design-build project, while others charge a separate fee for preconstruction services, particularly if the project does not proceed to construction with that same contractor. An owner should ask directly how a specific contractor structures this fee and whether it is credited against the construction contract if the same firm is later awarded the build.
How Preconstruction Differs Across Delivery Methods
The scope and timing of preconstruction shifts depending on how a project is delivered. On a design-build project, preconstruction and design happen together from the start, with the contractor shaping the design as it develops. On a construction manager at risk project, the owner hires the construction manager separately from the architect, but still early enough for preconstruction input to influence design decisions. On a traditional design-bid-build project, preconstruction as a distinct phase barely exists in the same way, since the contractor is typically selected only after design is complete and bidding has occurred, leaving little room for the kind of early cost and constructability input that defines preconstruction on the other two delivery methods.
What to Ask a Contractor About Preconstruction
- Who specifically will lead preconstruction, and is that the same person who will run construction?
- How is the preconstruction fee structured, and is it credited toward the construction contract?
- What long-lead items does the contractor expect to flag based on current market conditions?
- Can the contractor provide an example of a constructability issue caught during preconstruction on a past project?
- How does the delivery method chosen for this project affect how much preconstruction input is possible?
Questions
Is preconstruction only relevant for large projects?
No. Even a modest tenant improvement or remodel benefits from early cost estimating and code review, though the formality of the process scales with project size.
Does preconstruction guarantee the final cost will match the early estimate?
It reduces the risk of a large gap between early estimates and final cost by catching issues earlier, but design changes and market conditions can still shift the number.
Who pays for preconstruction services?
This depends on the contract structure. Some owners pay a separate preconstruction fee, while others have it included in the overall project fee if the same contractor proceeds to construction.
What is the difference between preconstruction and a feasibility study?
A feasibility study typically comes earlier and asks whether a project makes sense at all, while preconstruction assumes the project is moving forward and focuses on planning its execution.
Which delivery method gives an owner the most preconstruction influence?
Design-build and construction manager at risk delivery methods generally allow more preconstruction input than design-bid-build, since the contractor is involved earlier in both.
Can an owner add preconstruction services to a design-bid-build project?
It is uncommon in the traditional sense, though an owner can hire an independent cost estimator or reviewer during design to get some of the same early input.
How does a tight project timeline affect the preconstruction phase?
A compressed timeline can pressure the owner to shorten or skip preconstruction steps, which raises the risk of the change orders and delays that a fuller preconstruction phase is meant to prevent.