Schedule Development for General Contracting

Review the executed contract or latest draft for required start dates, substantial completion dates, interim milestones, and any liquidated damages tied to schedule. Note these clearly in a separate document so they are easy to reference.

Confirm what stage the drawings and specifications are at (for example, design development, construction documents) and what design milestones remain. Ask the design team or client for any planned dates for future design releases or addenda.

Review site information, such as access routes, working hour restrictions, noise limits, shared site conditions, and local regulations. Note any constraints that could affect working hours, crane locations, laydown areas, or phasing.

Review the estimate and handoff summary for any schedule-related assumptions, such as anticipated durations, sequencing choices, or productivity expectations. Capture these in your schedule input notes.

Meet briefly with the project manager and superintendent (if assigned) to discuss schedule expectations, risks, and any early ideas about phasing or critical activities. Add their input to your notes.

Create a simple “Schedule Inputs & Constraints” document that lists contract dates, design milestones, site constraints, internal assumptions, and key risks. Save it in the project folder as the reference foundation for schedule development.

Decide how you will structure the schedule: by phase, building, floor, area, or system, depending on project type. Choose a structure that matches how the work will actually be executed and tracked.

Write out the major phases of the project from preconstruction through closeout, such as preconstruction services, permitting, sitework, structure, envelope, interiors, MEP rough-in, finishes, commissioning, and punch/turnover.

From your schedule input summary and contract, list the key milestones such as permit submission and approval dates, start-on-site, structural top-out, dry-in, first equipment startup, substantial completion, and owner occupancy.

Decide what events will mark the beginning and end of each phase (for example, “foundation complete,” “drywall hung on level 2,” “MEP rough-in complete in Area A”). This helps you define clear milestones for tracking.

Draft a simple chart or list that shows phases and their key milestones in order. At this stage, you do not need exact dates, just a logical sequence and rough relative order.

Share the proposed work breakdown structure and milestone list with the project manager to confirm it matches their understanding of how the job should be organized. Adjust as needed based on their feedback.

For each project phase, write down the major activities in plain language (for example, “mass excavation,” “foundation walls,” “steel erection,” “roofing,” “MEP rough-in,” “interior framing,” “finishes”). Aim for a level of detail that is easy to understand but not yet down to every minor task.

For each major activity, decide which tasks must finish before it can start, which can run in parallel, and which are dependent on external events (like permit approval). Note these relationships as “precedes,” “follows,” or “can overlap.”

Decide whether certain activities will be phased by area, building, or floor (for example, starting interior work on Level 1 while Level 3 shell is still being built). Note where phased overlaps are possible and realistic.

Flag activities such as major equipment procurement, structural steel fabrication, and critical submittals that must start early or long before related field work. These will be linked to procurement and submittal tasks later.

Create a simple logic diagram or use your scheduling software to sketch out major activities and their relationships. Focus on order and dependency, not dates, at this stage.

Walk through the high-level sequence with the superintendent and project manager. Ask them to challenge the logic, point out missing steps, and flag any unrealistic overlaps. Update your logic based on their input.

Identify specific tasks such as contract execution, design coordination meetings, early budgeting cycles, constructability reviews, value engineering workshops, and client decisions. Include any preconstruction submittals or reports required by contract.

List all permits and approvals needed (for example, building permit, utility permits, environmental approvals), including pre-application meetings, submission, review, and expected approval. Use your permitting process notes as input.

Estimate how long each preconstruction and permitting task should take based on experience and any input from authorities or designers. Decide which tasks can run concurrently and which must follow others.

In your scheduling tool, create a “Preconstruction & Permitting” section and input each task with its duration and logic relationships. Use clear names that non-schedulers can understand.

Check that preconstruction and permitting tasks line up with contractual milestones and design release dates. Adjust durations or sequences if they create conflicts or unrealistic expectations.

Mark early milestones such as “permit submitted,” “permit received,” “GMP finalized” (if applicable), or “notice to proceed for construction.” These will be used to coordinate with the client and internal teams.

For each high-level activity, break it into more detailed tasks that reflect how the work will be executed (for example, “footings,” “foundation walls,” “slab on grade,” “steel erection gridlines A–E,” “rough-in Level 1 East,” etc.). Keep detail manageable but sufficient for coordination.

Estimate durations for each task using production rates, historical data from similar jobs, and input from the superintendent. Avoid guessing; use concrete assumptions such as crew sizes and working hours.

Connect tasks in the scheduling software according to the logic you developed earlier, refining relationships as you add detail. Use finish-to-start, start-to-start, and lag times where appropriate to reflect realistic overlaps.

Run the schedule calculation to identify the critical path—the chain of activities that drives the completion date. Review this path to make sure it aligns with your understanding of the project’s key drivers.

Compare the planned sequence and durations against site access, laydown area capacity, crane operations, and weather expectations. Adjust the schedule if logistics or seasonal conditions make parts of it unrealistic.

In the schedule file or a separate document, note the major assumptions used for durations and sequencing (for example, “two framing crews,” “winter weather contingency assumed minimal”). This helps explain the schedule later and supports future updates.

List the trades and vendors whose work heavily influences the schedule (for example, structural steel, concrete, major mechanical/electrical contractors, curtain wall, key equipment vendors). Prioritize those with long durations or long lead times.

Send each critical subcontractor a portion of the draft schedule relevant to their work, including major milestones and assumptions about durations and sequencing. Provide enough context so they understand where their work fits.

Arrange short discussions with each key subcontractor and supplier to review the proposed durations and sequence. Ask them whether the plan is achievable with typical crew sizes and what constraints they see.

Note any requested changes such as additional time for certain activities, required float between trades, or specific sequencing needs (for example, access to areas, off-hours work). Ask why changes are needed so you can judge reasonableness.

Adjust the schedule where subcontractor suggestions are practical and consistent with overall project goals. Where suggestions are not acceptable, discuss alternatives like increased manpower or shift work.

Share the updated schedule excerpts back to key trades, highlighting changes made based on their input. Confirm that they understand and accept the revised plan as the basis for their own planning.

Use your scheduling software or a separate analysis to look at how many workers each trade would need on site over time to meet the schedule. Compare these numbers to typical crew sizes and market availability.

Scan the schedule for periods where too many trades are planned in the same area or level at once. Consider site access, material handling, and safety when deciding what is too crowded.

Identify when major equipment like cranes, hoists, or lifts will be needed and for how long. Check that these demands are feasible given site conditions and rental or ownership limitations.

Look at the timing of weather-sensitive activities (for example, earthwork, roofing, exterior finishes) relative to typical local weather patterns. Adjust durations or sequence if work is planned in unfavorable seasons without contingency.

Review findings with the superintendent, asking whether they believe the schedule is workable given crews, logistics, and safety. Listen closely to concerns and adjust the schedule where appropriate.

Make schedule adjustments to address resource and logistics issues. Add notes or a short “schedule constraints” section to your documentation so the team understands the limitations you considered.

Check the scheduled substantial completion and final completion dates against the contract requirements. Note whether you are ahead of, matching, or behind the contractual dates.

Look at key milestones such as phased turnovers, occupancy dates, or equipment startup dates. Compare them to any commitments in the contract or owner communications.

If the schedule currently misses required dates, explore options such as overlapping tasks, increasing manpower, resequencing, or adding shifts in problematic areas. Ensure any changes remain realistic and safe.

If even aggressive adjustments cannot meet contractual dates, document this clearly. Identify what would need to change (scope reduction, design timeline, or major resource additions) to make dates achievable.

Review the contract alignment with the project manager and operations leadership, explaining any gaps and proposed strategies to close them. Decide whether to seek schedule relief from the owner if needed.

Once alignment is acceptable, lock in key dates in the schedule and document any assumptions made to meet contract milestones. This provides a baseline for future negotiations or claims if conditions change.

Generate schedule views that are easy to understand: a milestone list, a summary Gantt chart by phase or area, and a critical path activity list. Include a short written summary of key assumptions and constraints.

Invite the project manager, superintendent, pre-construction lead, and any key support staff (such as procurement) to a dedicated schedule review meeting. Share the schedule summary as pre-reading.

In the meeting, present the high-level timeline, calling out key phases, milestones, and the critical path. Explain which activities drive completion and why.

Focus discussion on areas with little float, heavy trade stacking, complex logistics, or significant assumptions. Ask team members whether they believe these parts of the schedule are achievable.

As questions and concerns arise, record them and decide which require schedule changes versus clarifications in notes or planning. Assign someone to own each change or follow-up item.

After the meeting, update the schedule to reflect agreed changes. Re-run the schedule, confirm dates and critical path, and save this version as the “draft baseline” pending owner review or approval.

Use your scheduling tool’s “baseline” or equivalent function to capture the approved schedule dates and relationships. This creates a frozen version you can compare against as the project progresses.

Produce clear reports and graphics from the baselined schedule, such as overall Gantt charts, milestone charts, and phase-by-phase timelines. Make sure reports are readable by non-schedulers.

Create a simplified schedule summary for the owner that highlights key milestones, phase dates, and any contractual dates. Use straightforward language and graphics to make it easy to understand.

Upload the baseline schedule reports to the project management platform and shared folders. Notify internal team members where they can find the schedule and which version is the baseline.

Present the baseline schedule to the owner, design team, and, if appropriate, major subcontractors. Walk through milestones and critical phases, and address questions or minor adjustments if requested.

Once the owner acknowledges or approves the schedule (depending on contract requirements), record the acceptance in meeting minutes or a confirmation email. Note the baseline version and date in your schedule file naming and project records so everyone knows which schedule is official.