BIM 4D / 5D Services

01 — The Challenge

Construction projects involve thousands of activities, materials, resources, and cost decisions. Managing these independently can make it difficult to understand how design, schedule, and cost are connected.

Common challenges include:

• Construction schedules disconnected from BIM models

• Difficulty visualizing construction sequence

• Limited understanding of how design changes affect schedule

• Manual tracking of construction progress

• Difficult coordination between planning and BIM teams

• Quantities separated from project cost information

• Limited visibility into cost impact of design changes

• Difficult forecasting of material requirements

• Inconsistent quantity and cost data

• Complex project schedules difficult to communicate visually

• Difficulty identifying sequencing conflicts

• Limited visibility into project progress and planned vs. actual status

VDEC connects BIM, schedule, quantities, and cost information to provide a more visual and data-driven approach to construction planning and project control.

02 — VDEC Solution

VDEC delivers integrated 4D and 5D BIM workflows that connect digital models with project schedules and cost information.

4D BIM — Time & Construction Planning

We link BIM elements with project activities to create visual construction sequences.

Our services include:

• BIM-Based Construction Sequencing

• Schedule Integration

• Activity-to-Model Linking

• Construction Simulation

• Phasing Visualization

• Progress Visualization

• Planned vs. Actual Analysis

• Site Logistics Visualization

• Temporary Works Visualization

• Installation Sequence Planning

5D BIM — Quantities & Cost

We connect BIM model information with quantity and cost data to support commercial planning.

Our services include:

• BIM Quantity Take-Off

• Cost-Loaded BIM

• Model-Based Estimating

• Material Quantification

• Cost Database Integration

• Cost Coding

• Design Change Cost Analysis

• Budget Monitoring

• Quantity Revision Comparison

• Cost Forecasting Support

Integrated 4D/5D BIM

Where required, VDEC connects:

BIM Model + Schedule + Quantities + Cost

to create a more comprehensive digital project planning environment.

Our objective is to help project teams understand not only what they are building, but when it will be built and how design and quantity changes may affect project cost.

03 — Deliverables

4D BIM Deliverables

• 4D BIM Model

• Linked Construction Schedule

• Activity-to-Model Mapping

• Construction Sequence Simulation

• Phasing Models

• Construction Animation

• Progress Visualization

• Planned vs. Actual Visualization

• Site Logistics Visualization

• Installation Sequence Studies

5D BIM Deliverables

• BIM Quantity Take-Off

• Cost-Linked BIM Model

• Material Quantities

• Element Quantities

• Cost Breakdown

• Cost Codes

• Quantity Reports

• Cost Reports

• Budget Tracking Support

• Design Change Impact Reports

Integrated 4D/5D Deliverables

• Time-Linked BIM Model

• Cost-Linked BIM Model

• Quantity & Cost Database

• Schedule Visualization

• Construction Progress Dashboard Support

• 4D/5D Reports

• Revision Comparison

• Forecasting Information

04 — Our Process

01. Project Requirement Review

We review the project BIM Execution Plan, construction methodology, project schedule, cost structure, quantity requirements, BIM uses, and reporting requirements.

02. BIM Model Review

The latest multidisciplinary BIM models are reviewed for geometry, element classification, model structure, parameters, levels, phasing, and information required for 4D/5D integration.

03. Schedule Review

For 4D BIM, we review the project schedule, WBS, activities, milestones, dependencies, durations, and sequencing logic.

04. Quantity & Cost Review

For 5D BIM, we review the project's quantity structure, measurement methodology, cost codes, rates, budgets, and available cost information.

05. Model Classification

BIM elements are organized into appropriate work packages, construction activities, systems, zones, or cost categories.

06. 4D Schedule Integration

Model elements are linked to corresponding construction activities to create a time-based digital construction sequence.

07. 5D Quantity & Cost Integration

Model quantities are connected with cost information, allowing project teams to understand quantities and associated costs across the project.

08. Simulation & Analysis

Construction sequences, phasing, quantities, and cost information are reviewed to identify potential planning or commercial risks.

09. Progress & Revision Updates

As project information changes, models, schedules, quantities, and cost information can be updated to reflect the latest project status.

10. Reporting & Visualization

Final 4D/5D information is presented through models, reports, simulations, dashboards, and visual outputs according to project requirements.

05 — Software & Technology

VDEC works with industry-standard BIM, planning, coordination, and data technologies, including:

Autodesk Revit | Navisworks | Autodesk Construction Cloud (ACC) | BIM 360 | AutoCAD | Microsoft Excel

Depending on project requirements, our workflows can integrate with client-provided construction schedules, cost databases, WBS structures, project controls systems, BIM Execution Plans, and Common Data Environments.

06 — Benefits

Visualize Construction Before It Happens

4D BIM allows project teams to see how the building will be constructed over time.

Improve Construction Sequencing

Identify sequencing conflicts and opportunities before they affect site activities.

Better Schedule Understanding

Connect construction activities directly to physical BIM elements.

Improve Project Communication

Use visual simulations to communicate complex construction plans to stakeholders.

Better Progress Monitoring

Compare planned construction activities with actual project progress.

Improve Quantity Visibility

Use BIM models to provide structured and traceable quantity information.

Better Cost Planning

Connect quantities and model elements with cost information to support commercial decision-making.

Understand Design Change Impact

Assess how design changes may affect quantities, schedule, and cost.

Improve Procurement Planning

Use model-based quantities and construction sequencing to support material planning.

Reduce Planning Risk

Identify potential schedule, coordination, and cost risks earlier in the project lifecycle.

Create a Connected Digital Workflow

Bring together:

Design → BIM → Quantity → Schedule → Cost → Construction

07 — Example Project

4D/5D BIM for a High-Rise Commercial Development

Project Type: High-Rise Commercial / Mixed-Use Development

Scope: BIM Coordination + 4D Construction Planning + 5D Quantity & Cost Support

Disciplines: Architecture + Structure + MEPF

LOD: 350

VDEC Approach

VDEC developed a coordinated multidisciplinary BIM environment and structured the model according to the project's construction sequencing and quantity requirements.

For 4D BIM, model elements were mapped to the project's construction activities, allowing the project team to visualize major construction phases including substructure, structure, façade, MEPF installation, interior works, and external works.

For 5D BIM, model-based quantities were organized by building, level, discipline, material, and work package. Relevant quantities were then associated with the project's cost structure.

The integrated environment allowed project stakeholders to review construction sequence, quantities, and cost-related information within a connected digital workflow.

Outcome

The project team gained improved visibility into construction sequencing, model-based quantities, work packages, and potential schedule and cost impacts, supporting more informed planning and project-control decisions.

08 — See the Project Before You Build It

Construction planning becomes more powerful when time, cost, and physical construction are connected to the BIM model.

VDEC's 4D/5D BIM Services help project teams move beyond static drawings and spreadsheets toward a more connected digital construction environment.

From construction sequencing and progress visualization to quantity take-offs and cost integration, we help clients understand the relationship between what is being built, when it will be built, and how project changes can affect cost and resources.