Vertical:
Service Overview
Complex construction projects involve more than coordinated drawings. Equipment must fit through access routes, building systems must be installed in a practical order, and multiple contractors must work within shared spaces. When these constraints are not tested early, even a well-developed design can become difficult to execute.
Desapex provides Virtual Design and Construction (VDC) services that connect BIM-based constructability analysis, multidisciplinary coordination, installation planning, site logistics and digital construction reviews within an integrated preconstruction workflow.
We help developers, design-build contractors, EPC teams, BIM managers and specialist contractors examine how construction will take place before physical work begins.
From mission-critical data centers and industrial facilities to commercial buildings and complex MEP installations, our VDC approach creates a practical digital environment for evaluating construction methods, identifying interfaces and preparing coordinated execution information.
What is Virtual Design and Construction (VDC)?
Virtual Design and Construction (VDC) is a collaborative methodology that uses digital building models, construction information and structured coordination processes to plan and evaluate how a project will be built before site execution.
It combines BIM coordination, constructability reviews, installation sequencing, site logistics and virtual design reviews to help teams identify spatial, technical and operational constraints early.
Unlike BIM modeling alone, VDC focuses on making construction methods and interfaces reviewable. Unlike 4D simulation alone, it addresses more than the relationship between model elements and time.
Our Digital-First Approach
Define Project Objectives & VDC Requirements
We assess project goals, construction packages, site constraints and coordination requirements to establish a clear VDC strategy aligned with construction priorities.
Integrate Multidisciplinary BIM Models
We bring together architectural, structural, civil and MEPF models into a coordinated digital environment, incorporating reality capture and as-built information where required.
Conduct Constructability & BIM Coordination Reviews
We evaluate buildability, installation clearances, equipment access and multidisciplinary interfaces to identify potential conflicts and construction constraints before site execution.
Plan Construction Logistics & Installation Sequencing
We use digital models to review construction methods, work zones, material movement, installation sequences and prefabrication interfaces, supporting practical execution planning.
Visualize, Validate & Document Construction Decisions
Through virtual design reviews, digital mock-ups and structured issue tracking, we help stakeholders evaluate solutions, resolve coordination questions and prepare actionable construction-planning outputs.
Core Deliverables
VDC execution & coordination plan: A defined approach covering construction planning objectives, BIM information requirements, model inputs, coordination responsibilities, review milestones and reporting arrangements.
BIM constructability review reports: Documented review identifying installation constraints, geometric and functional interface conflicts, access restrictions and construction feasibility questions, with assigned actions & resolution status.
Federated construction-review models: Coordinated digital model views combining relevant disciplines and specialist systems to support multidisciplinary construction discussions and planning.
Site logistics and work-zone planning visuals: Model based layouts or diagrams illustrating relevant construction access routes, material handling zones, temporary work area, installation spaces and phase-dependent site constraints.
Installation sequencing and construction-method reviews: Visual assessments and documented observations for critical construction interfaces, equipment installation, system assembly and alternative work methods.
Digital mock-ups and visualization packages: Focused model-based representations of congested areas, technical interfaces, equipment installations or proposed construction arrangements for stakeholder reviews.
DfMA and Prefabrication interface reviews: Coordination outputs addressing prefabricated component dimensions, connection locations, transport and installation clearances, assembly considerations and interfaces with permanent works.
VDC issue registers and decision records: Traceable record of identified constraints, proposed resolutions, responsible partied, open technical queries and agreed decisions.
Why Choose Desapex
Desapex brings together digital engineering, BIM coordination and MEPF design knowledge. This enables construction-planning discussions to consider how architectural, structural and building services systems interact rather than reviewing each discipline independently. Our approach connects model reviews to practical installation considerations, including equipment access, work sequencing, construction interfaces and buildability. Our digital engineering capabilities support project types where service density, constrained access and specialist equipment make coordination particularly important, including data centres, industrial facilities, manufacturing environments and process plants.
Unique Selling Proposition
Desapex approaches Virtual Design and construction as a coordinated preconstruction methodology not as an isolated modelling or visualization service.
Our differentiation is the combination of multidisciplinary engineering information, BIM based constructability reviews, installation-interface planning and structured decision management.
We help project teams move from reviewing what has been designed to evaluating how the proposed work can be constructed, accessed, installed and coordinated.
For contractors and developers, this creates a clearer basis for construction planning and helps make unresolved technical interfaces visible before site activities depend on them.
Frequently Asked Questions
What is the difference between BIM and Virtual Design & Construction?
Building information modelling (BIM) provide digital representations and structured information about a building or infrastructure asset. Virtual Design & Construction (VDC) applies models and coordinated project information to planning how that asset will be constructed.
How is VDC different from 4D BIM simulation?
When should VDC services begin on a construction project?
What information is required to start a VDC assignment?
Which types of projects benefit from VDC services?
Does VDC replace construction management or contractor responsibilities?
