Preconstruction — Scheduling & Phasing

Fast-Tracking (Construction)

Overlapping design and construction so building starts before the design is fully complete.

Quick Answer

Fast-tracking overlaps phases that would traditionally run in sequence, most often starting construction before design is fully complete. Design is released in packages, foundations, structure, envelope, so early work begins while later design continues. It compresses the overall schedule significantly, but raises the risk of rework and change orders if later design affects work already built.

The Full Picture

Fast-tracking exists to close the gap between the desire to finish quickly and the reality that fully sequential design-then-build takes a long time. By overlapping the two, an owner can occupy a building months earlier, which on a revenue-generating or time-sensitive project can outweigh the added risk. It's a deliberate trade of certainty for speed.

Mechanically, the design is broken into packages released in the order the work is built. The foundation package is completed and issued for construction while the superstructure and interiors are still being designed. Excavation and foundations proceed on early information, and each subsequent package is finished just ahead of when its field work needs it. Procurement of long-lead items is pulled forward to match.

The core risk is that downstream design decisions can conflict with work already in place. If the structural design finalizes in a way the poured foundations didn't anticipate, the result is rework and change orders. Fast-tracking therefore demands tight coordination between designers and builders and a higher tolerance for change than a fully designed, hard-bid job.

For preconstruction, fast-tracking reshapes everything: estimating happens on incomplete documents, bidding is done in packages rather than one complete set, and scope gaps between packages become a live risk because no single complete drawing set exists to reconcile against. Careful package definition and scope coordination in precon are what keep fast-tracking from turning into a change-order spiral.

Real Examples

→Package release: The foundation package is issued for construction and excavation begins while the architect is still detailing the curtain wall and interiors.
→Time saved: By overlapping design and construction, a data center opens eight months earlier than a sequential schedule would have allowed, capturing early revenue.
→Rework risk: A late structural revision doesn't fit the already-poured foundations, forcing a change order, the classic cost of building ahead of complete design.

Common Misconceptions

People assume: Fast-tracking is the same as design-build.

Actually: They often go together but aren't the same. Fast-tracking is overlapping design and construction phases; design-build is a delivery method with one contract for both. You can fast-track under various delivery methods, and design-build doesn't have to be fast-tracked.

People assume: Fast-tracking always saves money because it saves time.

Actually: It saves time but usually raises risk and often cost, through rework, change orders, and premium procurement. It pays off when finishing early is worth more than the added risk, not as a free way to shorten every job.

Does MeltPlan Solve This?

Not directly

Not directly. Fast-tracking is a scheduling and delivery strategy that MeltPlan doesn't manage. That said, MeltPlan's preconstruction focus fits fast-track work well: it reviews drawings and specs for gaps and changes across revisions, produces takeoffs, and levels bids by package, exactly the document coordination fast-tracking makes harder. For sequencing the overlap itself you'll still want a dedicated scheduling tool.

Frequently Asked Questions

How does fast-tracking work?

Design is released in packages in build order, foundations, structure, envelope, interiors, so construction on early packages starts while later design continues. Long-lead procurement is pulled forward to match, compressing the overall timeline.

What are the risks of fast-tracking?

The main risk is rework: because construction begins before design is complete, later design decisions can conflict with work already built, causing change orders and cost growth. It demands tight designer-builder coordination and tolerance for change.

What's the difference between fast-tracking and phased construction?

They overlap heavily. Fast-tracking specifically means overlapping design with construction; phased construction means building in sequential phases. Fast-tracking usually involves releasing design in phased packages, so the terms are often used together.

How does fast-tracking affect preconstruction?

Estimating and bidding happen on incomplete, package-by-package documents rather than one complete set, so scope gaps between packages become a real risk. Careful package definition and scope coordination in precon are essential to control change.

Related Terms

Schedule CompressionShortening a project's duration without reducing scope, by crashing or fast-tracking the work.CPM ScheduleA logic-linked schedule that calculates which chain of activities controls the finish date.Critical PathThe chain of dependent activities whose total length determines the project finish date.Preconstruction ScheduleThe timeline for all the design, bidding, and procurement work that has to finish before construction can start.PreconstructionEverything a contractor does to plan, price, and de-risk a project before ground breaks.Master ScheduleThe top-level, whole-project timeline of major phases and milestones from design to closeout.

More Preconstruction — Scheduling & Phasing Terms

Sources

  1. Project Management Institute (PMI) — Practice Standard for Scheduling
  2. Design-Build Institute of America (DBIA) — Project delivery resources
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