Digital Construction – Scan to BIM Services

01 — The Challenge

Existing buildings often present significant challenges because the available drawings and documentation may not accurately represent the actual site conditions.

Over time, buildings undergo modifications, renovations, system upgrades, and changes that may never be properly documented.

Common challenges include:

• Missing or outdated drawings

• Differences between original design and actual construction

• Incomplete as-built documentation

• Complex existing architectural and structural conditions

• Unrecorded MEPF modifications

• Difficulty understanding existing services

• Limited information about congested plant rooms and service areas

• Uncertainty during renovation and retrofit projects

• Risk of clashes between proposed designs and existing conditions

• Time-consuming manual interpretation of point-cloud data

• Large volumes of scan data that are difficult for project teams to convert into usable models

• Lack of an intelligent BIM environment for future planning

A point cloud captures the physical condition of a building, but it does not automatically provide the structured, intelligent information required for design, coordination, construction, or facility management.

That is where VDEC adds value.

02 — VDEC Solution

VDEC transforms client-provided point clouds and reality-capture data into accurate, structured, and project-ready BIM models.

Our team works with registered scan data to interpret existing conditions and develop BIM models according to the agreed scope, Level of Development, accuracy requirements, and intended use.

Point Cloud to BIM Modeling

We convert provided point-cloud data into:

• Existing Condition BIM Models

• Architectural BIM Models

• Structural BIM Models

• HVAC BIM Models

• Electrical BIM Models

• Plumbing BIM Models

• Fire Protection BIM Models

• Multidisciplinary Federated Models

Architectural Scan to BIM

• Walls

• Floors

• Ceilings

• Doors

• Windows

• Stairs

• Roofs

• Façade Elements

• Interior Elements

• Major Building Components

Structural Scan to BIM

• Columns

• Beams

• Slabs

• Structural Walls

• Steel Elements

• Structural Openings

• Existing Structural Components

MEPF Scan to BIM

HVAC

• Ductwork

• Mechanical Piping

• HVAC Equipment

• AHUs

• FCUs

• Diffusers

• Grilles

Electrical

• Cable Trays

• Conduits

• Electrical Panels

• Major Equipment

• Lighting Fixtures

• Electrical Components

Plumbing & Fire Protection

• Water Piping

• Drainage Systems

• Major Fixtures

• Pumps

• Fire Protection Piping

• Sprinklers

• Valves

• Equipment

Existing Conditions for Digital Construction

The resulting BIM model can support:

• Renovation

• Retrofit

• Refurbishment

• Adaptive Reuse

• Design Coordination

• Clash Detection

• Construction Planning

• As-Built Documentation

• Facility Management

• Digital Handover

VDEC's role is to transform raw scan information into a usable BIM environment that supports better project decisions.

03 — Deliverables

BIM Models

• Existing Condition BIM Model

• Architectural BIM Model

• Structural BIM Model

• HVAC BIM Model

• Electrical BIM Model

• Plumbing BIM Model

• Fire Protection BIM Model

• Multidisciplinary Federated BIM Model

Point Cloud-Based Documentation

• Point Cloud Referenced BIM Model

• Scan-to-Model Validation Views

• Existing Condition Plans

• Floor Plans

• Sections

• Elevations

• Reflected Ceiling Plans

• MEPF Layouts

• Equipment Layouts

Digital Construction Deliverables

• Renovation BIM Model

• Retrofit Coordination Model

• Existing vs. Proposed Model

• Clash Detection Model

• Design Coordination Model

• As-Built Documentation Support

Model Information

Depending on project requirements, models can include:

• Element Classification

• Dimensions

• Levels

• Location Information

• Room & Space Data

• Equipment Information

• System Information

• Asset Parameters

• Component Identification

Model Development Levels

Models can be developed according to the agreed project requirements, including:

• LOD 200

• LOD 300

• LOD 350

• LOD 400

• LOD 500 / As-Built Requirements

04 — Our Process

01. Project & Data Requirement Review

We begin by reviewing:

• Project Scope

• Intended BIM Use

• Required Level of Development

• Modeling Standards

• Accuracy Requirements

• Available Point Cloud Data

• Existing Drawings

• Project Documentation

• Required Deliverables

This ensures that the Scan to BIM scope is aligned with the actual project requirements.

02. Client Provides Scan / Point Cloud Data

The client, survey team, or third-party reality-capture provider supplies the available project data.

This may include:

• Registered Point Clouds

• Laser Scan Data

• LiDAR Data

• Survey Information

• Photographs

• Existing Drawings

• CAD Files

• Previous BIM Models

VDEC does not undertake on-site scanning.

Our scope begins with the review and processing of the information provided by the project team.

03. Point Cloud Assessment

Before modeling begins, our team assesses the available scan data for:

• Coverage

• Completeness

• Registration Quality

• Coordinate System

• Point Density

• Visibility

• Missing Areas

• Model Usability

Any significant limitations or missing information can be identified early for client clarification.

04. Modeling Strategy

A modeling strategy is established based on:

• Required Accuracy

• Level of Development

• Project Scope

• Building Areas

• Required Disciplines

• Intended BIM Uses

• Available Scan Quality

05. BIM Model Development

Our BIM specialists use the point cloud as a reference to develop the agreed building elements and systems.

The model is created according to the required:

• Geometry

• Dimensions

• Levels

• Locations

• Classification

• Parameters

• Project Standards

06. Multidisciplinary Coordination

Where multiple disciplines are included, Architecture, Structure, and MEPF models are coordinated within a federated BIM environment.

This supports the identification of:

• Existing Service Conflicts

• Structural Constraints

• Congested Areas

• Proposed Design Interfaces

• Potential Coordination Issues

07. Model-to-Point Cloud Validation

The developed BIM model is reviewed against the provided point-cloud data to verify alignment with the available captured conditions.

Key elements are checked for:

• Location

• Geometry

• Elevation

• Dimensions

• Alignment with the scan data

08. Quality Control

Our structured QA/QC process reviews:

• Model Completeness

• Geometry

• Levels

• Dimensions

• Element Classification

• Model Consistency

• Point Cloud Alignment

• Model-to-Documentation Accuracy

09. Client Review & Updates

Client comments and additional project information are incorporated into the BIM model and documentation.

10. Final Digital Delivery

The completed BIM model and associated documentation are delivered in the required formats to support:

Design → Coordination → Renovation → Construction → Handover

05 — Software & Technology

VDEC uses industry-standard BIM and coordination technologies, including:

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

Our workflows are designed to work with client-provided registered point clouds and reality-capture data.

We can also align the BIM model with:

• BIM Execution Plans

• Employer's Information Requirements

• Client BIM Standards

• LOD Requirements

• Project Coordinates

• Common Data Environments

• Digital Handover Requirements

06 — Benefits

Turn Scan Data into Usable BIM Information

Transform complex point-cloud data into an intelligent and structured BIM model.

Understand Existing Conditions

Create a reliable digital representation of the building based on available reality-capture information.

Reduce Design Uncertainty

Provide architects and engineers with better existing-condition information before design or renovation begins.

Improve Renovation & Retrofit Planning

Use BIM models to understand the existing building before introducing new systems or modifications.

Better Design Coordination

Coordinate proposed architectural, structural, and MEPF systems against the existing conditions.

Identify Potential Conflicts Early

Use the existing-condition BIM model as a basis for clash detection and constructability reviews.

Reduce Manual Interpretation

Save project teams time by converting complex point-cloud information into structured BIM data.

Support Better Decision-Making

Visualize existing conditions within an intelligent 3D environment.

Improve Documentation

Create coordinated plans, sections, elevations, and model-based documentation of existing facilities.

Support Long-Term Digital Asset Management

Create a digital foundation for future:

• Renovations

• Extensions

• System Upgrades

• Maintenance Planning

• Facility Management

• Digital Handover

07 — Example Project

Point Cloud to BIM for an Existing Commercial Building

Project Type: Existing Commercial / Mixed-Use Development
Scope: Point Cloud to BIM + Existing Condition Modeling + MEPF Coordination
Disciplines: Architecture + Structure + HVAC + Electrical + Plumbing + Fire Protection
Model Development: LOD 300–350
Input: Client-Provided Registered Point Cloud

The Requirement

The project involved an existing commercial building where the available drawings did not fully reflect the current site conditions.

The project team required an accurate digital model to support renovation planning and the coordination of new building systems.

A third-party provider supplied the registered point-cloud data to the project team.

VDEC Approach

VDEC reviewed the provided point cloud and established a modeling strategy based on the required scope and Level of Development.

The team developed an existing-condition BIM model covering key:

• Architectural Elements

• Structural Components

• Plant Rooms

• Service Corridors

• Shafts

• Major HVAC Systems

• Plumbing Systems

• Electrical Services

• Fire Protection Systems

The developed model was reviewed against the available point-cloud information to validate key dimensions, levels, and locations.

The multidisciplinary BIM environment was then prepared to support the proposed renovation and coordination activities.

Outcome

The project team received a structured existing-condition BIM model developed from the client-provided reality-capture data.

This provided a digital foundation for renovation planning, multidisciplinary coordination, clash detection, and future project development.

08 — From Reality Capture to Digital Construction

Capturing an existing building is only the first step.

The real value comes from transforming scan data into intelligent, coordinated, and usable BIM information.

While VDEC does not perform on-site laser scanning, our BIM specialists work with client-provided point clouds, scan data, surveys, and existing documentation to develop reliable digital models of existing buildings and facilities.

We help connect:

Reality Capture → Point Cloud → BIM Model → Coordination → Construction → Digital Asset

Whether you are planning a renovation, retrofit, refurbishment, expansion, adaptive reuse project, or facility upgrade, VDEC can transform your available scan data into a BIM environment built for better decision-making.