Construction project planning gets harder as projects grow more complex and teams face more decisions about cost, timing and resources. For owners managing several projects, a plan also needs to help people understand priorities and see what may affect the work ahead. This guide explains the seven steps of construction project planning, the methods teams use and the information a project plan should contain.
Key takeaways
- Construction project planning defines the work, schedule, budget and resources a team needs to deliver a project.
- A clear planning process helps owners, contractors and project teams agree on the work before construction begins.
- Methods such as a work breakdown structure, critical path schedule and Gantt chart help teams organize and track the work.
- Teams need to revisit plans as scope, costs, schedules and project conditions change.
What is construction project planning?
Construction project planning is the work of defining a project’s goals, scope, schedule, budget and resources before construction begins. It gives the project team a shared view of what needs to happen and how the work will be carried out.
Planning is one part of construction project management, which covers the broader work of guiding a project from start to finish. Scheduling is one part of planning: it lays out the tasks, their order and when they’re expected to happen. For more on the broader discipline, see construction project management.
The 7 steps of construction project planning
A project plan takes shape as teams define the work, decide who’s responsible, build a schedule and set a budget. The steps below offer a practical starting point. Teams may revisit them as they learn more about the project.
Step 1: Define the project scope and objectives
The project scope describes what the team will deliver and what falls outside the work. Start by writing down the project’s purpose, the problem it needs to solve and the results the owner expects. Then list the main deliverables, limits, assumptions and requirements.
Be specific. “Renovate the school” leaves too much room for different interpretations. The scope might instead identify which buildings and systems are included, what work needs to be completed and any requirements the team must meet. Confirm the scope with the people who will approve and carry out the work. A shared understanding at the start makes it easier to spot when a later request changes the project, its budget or its schedule.
Step 2: Identify stakeholders and roles
The project team includes everyone who will make decisions, provide information, approve work or be affected by the result. Depending on the project, that may include the owner, project manager, designers, general contractor, scheduler, facilities staff, users and funding partners.
List what each person or group is responsible for. Who approves the scope? Who signs off on design decisions? Who provides site or operating requirements? Who needs to know when costs or dates change? Clear answers help the team get input early and avoid sending decisions to the wrong person. They also help people understand when they need to act. For public projects and capital programs, include the people responsible for funding, compliance and reporting, along with those managing the work day to day.
Step 3: Develop the work breakdown structure (WBS)
A work breakdown structure, or WBS, divides the project into smaller pieces of work. It starts with the full project and breaks it down into deliverables, phases and tasks the team can assign and track.
For example, a building renovation might be divided into design, site preparation, structural work, building systems and finishes. Each part can then be broken into more specific tasks. The level of detail should help the team plan the work without turning the WBS into a list of every small action.
A WBS gives the team a common way to discuss what the project includes. It also helps connect the scope to the schedule and budget. If a task or deliverable is missing, the team can catch the gap before it causes confusion during construction.
Step 4: Build the project schedule
A project schedule shows the work that needs to happen, how long it may take and which tasks depend on others. Start with the tasks in the WBS. Estimate their durations, identify dependencies and set key milestones, such as design approvals, permits, procurement and construction start.
Some tasks can happen at the same time. Others can’t begin until a previous task is complete. The critical path is the sequence of dependent tasks that sets the earliest possible finish date. If one of those tasks slips, the project’s finish date may slip, too.
Build the schedule with input from people who understand the work, and update it when dates or assumptions change. For a closer look at the process, see these five project scheduling steps.
Step 5: Estimate costs and set the budget
The project budget estimates how much the work will cost and sets the amount approved for it. Use the project scope and schedule to identify expected costs for labor, materials, equipment, design, permits and other services. Note when those costs are expected, since the timing of payments can affect funding needs.
Early estimates may rely on assumptions. Record them and update the estimate as the team learns more about the design, site conditions and market costs. Include a contingency for unexpected expenses, based on the project’s risks and the owner’s requirements.
Compare the estimate with available funding before the team commits to the work. If the budget doesn’t cover the full scope, the owner may need to adjust the scope, secure more funding or change the schedule.
Step 6: Identify risks and plan mitigation
A project risk is something that could affect the work, such as a permit delay, an unexpected site condition, a cost increase or a late delivery. Ask the project team what could go wrong, how likely each issue is and what the impact would be.
For each major risk, name someone to monitor it and decide what the team can do to reduce its chances or impact. For example, if a long-lead material could delay construction, the team might confirm availability early and identify an alternate product. Record the risk, its owner and the planned response in a risk register.
Risks change as the project develops. Review them when the scope, schedule or site conditions change, and bring major issues to the people who can make a decision.
Step 7: Establish communication and reporting cadence
A communication plan says who needs project information, what they need to know, how they’ll receive it and when. Decide how often the team will review progress, costs, schedule changes, risks and open decisions.
A weekly project meeting may work for the delivery team, while owners or executives may need a shorter monthly update.
Set expectations for urgent issues, too. The team should know who to contact when a decision can’t wait for the next meeting.
Keep reports focused on what has changed, what’s at risk and what decisions are needed. Assign someone to record decisions and follow-up actions. As the project moves through planning, design, construction and closeout, the team can adjust the reporting cadence to match the work.
See the five stages of a construction project’s lifecycle for a broader view of those phases.
Core components of a construction project plan
A construction project plan brings the main decisions and working documents together. The exact contents vary by project, but most plans include:
- Scope statement: The work, deliverables, requirements and assumptions.
- WBS and task list: The project broken into pieces the team can assign and track.
- Project schedule and critical path: Tasks, milestones, dependencies and the sequence that sets the project’s earliest possible finish date.
- Budget and cost baseline: The approved budget and the estimate used to track costs.
- Resource plan: The labor, materials and equipment the project will need.
- Risk register: Known risks, who is monitoring them and the planned response.
- Communication plan: Who receives project updates, what they include and when they’re shared.
- Quality plan: The standards the work must meet and how the team will check it.
Common construction planning methods
Teams use different methods to organize project work and track progress. The right mix depends on the project, the owner’s requirements and how the team works.
Work breakdown structure (WBS)
A WBS divides the project into deliverables and tasks. Teams use it to make sure the plan covers the work and to connect tasks with owners, costs and schedule dates.
Critical path method (CPM)
The critical path method identifies the sequence of tasks that determines the project’s earliest finish date. It helps teams see which delays could affect the overall schedule and where they may have room to adjust.
Gantt charts
A Gantt chart displays schedule tasks as bars across a timeline. It helps teams see when tasks are planned, how long they may take and where work overlaps.
Program Evaluation and Review Technique (PERT)
PERT helps teams estimate how long work may take when there’s uncertainty. It uses optimistic, most likely and pessimistic time estimates to account for a range of possible durations.
Last Planner System
The Last Planner System is a Lean construction approach that brings the people responsible for the work into short-term planning. Teams coordinate upcoming tasks, check whether the work is ready and discuss reasons for missed commitments.
Common challenges in construction project planning
Even a detailed plan can run into problems. These are a few issues teams often need to watch for:
- Schedules that assume everything will go right. If the plan leaves no time for approvals, weather, procurement or other delays, small setbacks can push key milestones.
- Design, procurement and construction plans that don’t line up. A design change may affect purchasing or field work. Teams need to share updates across phases so each group is working from current information.
- Scope changes that don’t make it into the plan. If a change isn’t reflected in the budget and schedule, teams may keep working from outdated assumptions.
- The same people or equipment assigned to several projects. On a capital program, competing resource needs can affect dates across more than one project.
- Owners learning about long-lead items or key decisions too late. Late notice can leave little time to respond before a purchase or approval affects the schedule.
Planning as a program discipline
A project plan needs regular updates. Costs, dates and scope can change, and a plan that doesn’t reflect those changes can leave teams working from different assumptions. Owners and general contractors also need to look beyond one project when work, funding or resources are connected across a program.
Kahua works with owners managing capital programs and projects.
Learn more about Kahua for owners.
Construction project planning FAQ
What should a construction project plan include?
A construction project plan typically includes the scope, deliverables, task list, schedule, budget, resource needs, risks, communication plan and quality requirements. It should also identify key assumptions and who is responsible for each part of the work. The plan’s detail will depend on the size and requirements of the project.
What’s the difference between construction project planning and construction scheduling?
Construction project planning covers the decisions needed to prepare for the work, including scope, budget, resources, risks and communication. Scheduling is one part of that planning. It lays out the tasks, their order, how long they may take and when they’re expected to happen.
Who is responsible for construction project planning?
Planning is a shared responsibility. Owners set goals and requirements; project managers coordinate the plan; designers, contractors and schedulers provide information about the work, timing and resources. The exact roles depend on the project, but each group needs to know what it owns and which decisions require approval.
What’s the difference between construction project planning and construction project management?
Construction project planning prepares the scope, schedule, budget and other details before work begins. Construction project management covers the broader work of guiding the project, including planning, design, construction and closeout. Planning is one part of project management.
Read more about construction project management