What is fast-track construction?
Fast-track construction is a scheduling approach where construction starts on early packages, such as sitework and foundations, while later parts of the design are still being drawn. It is a schedule strategy, not a contract type, and is most common with design-build and CM at risk. It saves time, but rework and premium time can raise construction cost.
Fast-track construction overlaps design and construction instead of running them in sequence. The project is split into bid or release packages. The first package (often demolition, sitework, and foundations) is issued for construction while the architect is still finishing interiors and finishes. The owner gets the building sooner, at the cost of building on drawings that are not yet complete.
Fast-tracking is a schedule strategy, not a contract type. It is most common with design-build and construction management at risk, because both bring the builder in during design. It is hard to do under pure design-bid-build, which assumes finished drawings at bid.
How fast-track works on a real job
A hospital system needs a 40-bed addition open before flu season. Traditional sequencing would mean roughly a year of design, then bidding, then construction. Instead, the CM at risk and the owner agree on release packages:
| Package | Issued when | Risk to watch |
|---|---|---|
| 1. Site, utilities, foundations | Structural design about 60% complete | Column loads change after footings are poured |
| 2. Structural steel and deck | Framing design complete | Mill order placed before MEP penetrations are final |
| 3. Envelope | Exterior design complete | Window submittals racing the schedule |
| 4. MEP and interiors | Full construction documents | Rework where early packages assumed a layout |
Each package gets its own buyout, often its own guaranteed price amendment. The CM tracks which assumptions each package was priced on, because when package 4 moves a mechanical shaft, the slab openings in package 2 may already be poured.
Pros and cons
- Pro: earlier occupancy, which can matter more to the owner than construction cost.
- Pro: early buyout of long lead items like switchgear and air handlers.
- Con: more change orders and rework, since work is built before everything it touches is designed.
- Con: harder cost control. The full price is not known until the last package is bought.
- Con: heavier coordination. RFIs and submittals stack up across packages at the same time.
Common mistakes and disputes
- Not documenting what each package was based on. When a later design change costs money, the contractor needs the drawing revision that was current at release.
- Treating fast-track rework as the contractor's problem. If the owner chose to fast-track, the contract should say who pays for design-driven rework.
- Carrying too little contingency in early GMPs.
- Skipping a constructability review between packages.
- Pushing the schedule so hard that schedule compression costs (overtime, extra crews) eat the time savings.
Related terms
Fast-track relates to phasing plans, guaranteed maximum price contracts, the critical path method, and precon. If you are managing packages on several jobs at once, see how to manage multiple construction projects at once. Smart Business Automator's RFI and submittal tracking keeps each package's open items separate.
Frequently asked questions
Is fast-track the same as design-build?
No. Design-build is a delivery method with one contract for design and construction. Fast-track is a way of sequencing work. Design-build projects are often fast-tracked, but not always.
Does fast-track save money?
It saves time, which can save the owner financing, rent, or lost revenue. Construction cost itself often rises from rework and premium time, so the benefit depends on the owner's situation.
Can fast-track be used on public projects?
Sometimes, under CM at risk or design-build procurement where state law allows them. Traditional low-bid public work usually requires completed documents.
Who pays for rework on a fast-track job?
The contract decides. Well-written agreements state that design changes after a package release are owner changes, while the contractor's own errors remain its cost.
